--- title: "Apartment Gut Renovation NYC: A Unit Owner's Guide" description: Gutting a co-op or condo in NYC means working inside a building you don't control. Here's the order to do it in, from alteration agreement to final sign-off. image: https://www.blockrenovation.com/hubfs/block-blog-featured-image-import-cropped/nyc-apartment-remodel.jpg --- [Skip to content](https://www.blockrenovation.com/guides/nyc-apartment-gut-renovation-local#main-content) [![Block Renovation Logo](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/block-logo.svg)](https://www.blockrenovation.com?hsLang=en) - How It Works - [How Block Works](https://www.blockrenovation.com/how-it-works) - [Home Renovations](https://www.blockrenovation.com/home-renovations) - [New Construction](https://www.blockrenovation.com/new-construction) - [Commercial Projects](https://www.blockrenovation.com/commercial-projects) - [Block Protections](https://www.blockrenovation.com/block-protections) - [Reviews](https://www.blockrenovation.com/reviews) - [Design Services](https://www.blockrenovation.com/design-services) - [Trade Program](https://www.blockrenovation.com/trade-program) - [Gallery](https://www.blockrenovation.com/customer-gallery) - Project Guides - By Room - [Kitchen](https://www.blockrenovation.com/guides/cost/kitchen-remodel-cost) - [Bathroom](https://www.blockrenovation.com/guides/cost/bathroom-remodel-cost) - [Bedroom](https://www.blockrenovation.com/guides/the-complete-guide-to-bedroom-remodel-costs) - [Living Room](https://www.blockrenovation.com/guides/the-cost-of-a-living-space-remodel) - [Basement](https://www.blockrenovation.com/guides/the-complete-guide-to-basement-remodel-costs) - [Attic](https://www.blockrenovation.com/guides/the-complete-guide-to-attic-renovation-costs) - [Garage](https://www.blockrenovation.com/guides/the-complete-guide-to-garage-remodel-costs) - [Sunroom](https://www.blockrenovation.com/guides/sunroom-renovation-ideas-cost-more) - [Laundry Room](https://www.blockrenovation.com/guides/a-complete-guide-to-laundry-room-addition-and-remodel-2026) - [Mudroom](https://www.blockrenovation.com/guides/custom-mudroom-additions-costs-design-ideas) - Bigger Projects - [Home Addition](https://www.blockrenovation.com/guides/understanding-the-costs-of-a-home-addition) - [In-Law Suite](https://www.blockrenovation.com/guides/building-in-law-suite-ideas) - [Guest House](https://www.blockrenovation.com/guides/how-much-does-it-cost-to-build-or-remodel-a-guest-house) - [Deck Remodel](https://www.blockrenovation.com/guides/ultimate-guide-to-deck-remodeling-in-2026) - [Custom Home Build](https://www.blockrenovation.com/guides/most-cost-effective-homes-to-custom-build) - The Block Way - [A Renovation Planning Guide](https://www.blockrenovation.com/guides/the-block-way-of-renovating) - [Custom Home Building Guide](https://www.blockrenovation.com/guides/the-block-way-custom-home-building-process) - [Read the Latest Articles](https://www.blockrenovation.com/guides/page/1) - Budgeting & Planning - Budgeting - [Calculating Room Addition Costs](https://www.blockrenovation.com/guides/how-to-calculate-the-cost-of-a-room-addition) - [Kitchen Countertop Replacement Costs](https://www.blockrenovation.com/guides/how-much-does-replacing-kitchen-countertops-cost-in-2025) - [Kitchen Backsplash Costs](https://www.blockrenovation.com/guides/kitchen-backsplash-costs-installation-materials-more) - [Kitchen Flooring Costs](https://www.blockrenovation.com/guides/cost/how-much-does-new-flooring-cost-in-a-kitchen) - [Rerouting Plumbing Costs](https://www.blockrenovation.com/guides/rerouting-plumbing-costs-other-faqs) - [Shower Installation Costs](https://www.blockrenovation.com/guides/cost/shower-installation-costs) - [Tub Installation Cost](https://www.blockrenovation.com/guides/how-much-to-install-a-new-tub-bathtub-installation-cost-breakdown-tips) - Size Guides - [Minimum Bathroom Sizing](https://www.blockrenovation.com/guides/design/minimum-bathroom-size-maximize-small-space) - [Minimum Laundry Room Sizing](https://www.blockrenovation.com/guides/laundry-room-sizing-guide-minimums-averages-more) - [Minimum ADU Sizing](https://www.blockrenovation.com/guides/adu-sizing-smallest-typical-dimensions) - Additions & Conversions - [Ranch Home Additions](https://www.blockrenovation.com/guides/ranch-home-additions-ideas-costs-and-what-to-expect) - [Master Suite Over Garages](https://www.blockrenovation.com/guides/master-suite-additions-over-garage-cost) - [Dormer Addition Cost](https://www.blockrenovation.com/guides/building-a-dormer-addition-cost) - [Garage to Master Suite Conversion](https://www.blockrenovation.com/guides/garage-to-master-bedroom-suite-conversion) - [Garage Expansions](https://www.blockrenovation.com/guides/garage-expansions-ideas-addition-practicalities) - [Read the Latest Articles](https://www.blockrenovation.com/guides/page/1) - Tools - [Renovation Studio](https://www.blockrenovation.com/renovation-planning) - [AI Remodel Planner](https://www.blockrenovation.com/renovation-planning) - [Kitchen Remodel Visualizer](https://www.blockrenovation.com/tools/kitchen-remodel-visualizer) - [Kitchen Cabinet Visualizer](https://www.blockrenovation.com/tools/kitchen-cabinet-visualizer) - [Bathroom Remodel Visualizer](https://www.blockrenovation.com/tools/bathroom-remodel-visualizer) - [Basement Remodel Visualizer](https://www.blockrenovation.com/tools/basement-remodel-AI-designer) - [Estimate Remodeling Costs](https://www.blockrenovation.com/tools/calculate-renovation-cost-estimations) - [Renovation Value Calculator](https://www.blockrenovation.com/tools/roi-calculator) - [Basement Finishing Estimator](https://www.blockrenovation.com/tools/basement-finishing-estimator-planner) [Log In](https://www.blockrenovation.com/login?hsLang=en) [Get Started](https://www.blockrenovation.com/planner/route?hsLang=en) [Guides](https://www.blockrenovation.com/guides) - Block Renovations - [Working with Block](https://www.blockrenovation.com/guides/tag/working-with-block) - [Case Studies](https://www.blockrenovation.com/guides/tag/case-study) - [Block Contractors](https://www.blockrenovation.com/guides/tag/contractors) - Project Planning - [Planning & Logistics](https://www.blockrenovation.com/guides/tag/planning-logistics) - [Cost](https://www.blockrenovation.com/guides/tag/cost) - [Timelines](https://www.blockrenovation.com/guides/tag/timelines) - [Working with Contractors](https://www.blockrenovation.com/guides/tag/working-with-contractors) - Ideas & Inspiration - [Design](https://www.blockrenovation.com/guides/tag/design) - [Cleaning](https://www.blockrenovation.com/guides/tag/cleaning) - [Paint & Color](https://www.blockrenovation.com/guides/tag/paint-color) - [How To & DIY](https://www.blockrenovation.com/guides/tag/how-to) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/magnifying-glass.svg) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/magnifying-glass.svg) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/close-sm.svg) [![Block Renovation Logo](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/block-logo.svg)](https://www.blockrenovation.com?hsLang=en) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/nav-hamburger.svg) Guides - Block Renovations - [Working with Block](https://www.blockrenovation.com/guides/tag/working-with-block) - [Case Studies](https://www.blockrenovation.com/guides/tag/case-study) - [Block Contractors](https://www.blockrenovation.com/guides/tag/contractors) - Project Planning - [Planning & Logistics](https://www.blockrenovation.com/guides/tag/planning-logistics) - [Cost](https://www.blockrenovation.com/guides/tag/cost) - [Timelines](https://www.blockrenovation.com/guides/tag/timelines) - [Working with Contractors](https://www.blockrenovation.com/guides/tag/working-with-contractors) - Ideas & Inspiration - [Design](https://www.blockrenovation.com/guides/tag/design) - [Cleaning](https://www.blockrenovation.com/guides/tag/cleaning) - [Paint & Color](https://www.blockrenovation.com/guides/tag/paint-color) - [How To & DIY](https://www.blockrenovation.com/guides/tag/how-to) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/magnifying-glass.svg) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/magnifying-glass.svg) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/close-sm.svg) [Get Started](https://www.blockrenovation.com/planner/route?hsLang=en) - Learn About Block - How It Works - [How Block Works](https://www.blockrenovation.com/how-it-works) - [Home Renovations](https://www.blockrenovation.com/home-renovations) - [New Construction](https://www.blockrenovation.com/new-construction) - [Commercial Projects](https://www.blockrenovation.com/commercial-projects) - [Block Protections](https://www.blockrenovation.com/block-protections) - [Reviews](https://www.blockrenovation.com/reviews) - [Design Services](https://www.blockrenovation.com/design-services) - [Trade Program](https://www.blockrenovation.com/trade-program) - [Gallery](https://www.blockrenovation.com/customer-gallery) - Project Guides - By Room - [Kitchen](https://www.blockrenovation.com/guides/cost/kitchen-remodel-cost) - [Bathroom](https://www.blockrenovation.com/guides/cost/bathroom-remodel-cost) - [Bedroom](https://www.blockrenovation.com/guides/the-complete-guide-to-bedroom-remodel-costs) - [Living Room](https://www.blockrenovation.com/guides/the-cost-of-a-living-space-remodel) - [Basement](https://www.blockrenovation.com/guides/the-complete-guide-to-basement-remodel-costs) - [Attic](https://www.blockrenovation.com/guides/the-complete-guide-to-attic-renovation-costs) - [Garage](https://www.blockrenovation.com/guides/the-complete-guide-to-garage-remodel-costs) - [Sunroom](https://www.blockrenovation.com/guides/sunroom-renovation-ideas-cost-more) - [Laundry Room](https://www.blockrenovation.com/guides/a-complete-guide-to-laundry-room-addition-and-remodel-2026) - [Mudroom](https://www.blockrenovation.com/guides/custom-mudroom-additions-costs-design-ideas) - Bigger Projects - [Home Addition](https://www.blockrenovation.com/guides/understanding-the-costs-of-a-home-addition) - [In-Law Suite](https://www.blockrenovation.com/guides/building-in-law-suite-ideas) - [Guest House](https://www.blockrenovation.com/guides/how-much-does-it-cost-to-build-or-remodel-a-guest-house) - [Deck Remodel](https://www.blockrenovation.com/guides/ultimate-guide-to-deck-remodeling-in-2026) - [Custom Home Build](https://www.blockrenovation.com/guides/most-cost-effective-homes-to-custom-build) - The Block Way - [A Renovation Planning Guide](https://www.blockrenovation.com/guides/the-block-way-of-renovating) - [Custom Home Building Guide](https://www.blockrenovation.com/guides/the-block-way-custom-home-building-process) - [Read the Latest Articles](https://www.blockrenovation.com/guides/page/1) - Budgeting & Planning - Budgeting - [Calculating Room Addition Costs](https://www.blockrenovation.com/guides/how-to-calculate-the-cost-of-a-room-addition) - [Kitchen Countertop Replacement Costs](https://www.blockrenovation.com/guides/how-much-does-replacing-kitchen-countertops-cost-in-2025) - [Kitchen Backsplash Costs](https://www.blockrenovation.com/guides/kitchen-backsplash-costs-installation-materials-more) - [Kitchen Flooring Costs](https://www.blockrenovation.com/guides/cost/how-much-does-new-flooring-cost-in-a-kitchen) - [Rerouting Plumbing Costs](https://www.blockrenovation.com/guides/rerouting-plumbing-costs-other-faqs) - [Shower Installation Costs](https://www.blockrenovation.com/guides/cost/shower-installation-costs) - [Tub Installation Cost](https://www.blockrenovation.com/guides/how-much-to-install-a-new-tub-bathtub-installation-cost-breakdown-tips) - Size Guides - [Minimum Bathroom Sizing](https://www.blockrenovation.com/guides/design/minimum-bathroom-size-maximize-small-space) - [Minimum Laundry Room Sizing](https://www.blockrenovation.com/guides/laundry-room-sizing-guide-minimums-averages-more) - [Minimum ADU Sizing](https://www.blockrenovation.com/guides/adu-sizing-smallest-typical-dimensions) - Additions & Conversions - [Ranch Home Additions](https://www.blockrenovation.com/guides/ranch-home-additions-ideas-costs-and-what-to-expect) - [Master Suite Over Garages](https://www.blockrenovation.com/guides/master-suite-additions-over-garage-cost) - [Dormer Addition Cost](https://www.blockrenovation.com/guides/building-a-dormer-addition-cost) - [Garage to Master Suite Conversion](https://www.blockrenovation.com/guides/garage-to-master-bedroom-suite-conversion) - [Garage Expansions](https://www.blockrenovation.com/guides/garage-expansions-ideas-addition-practicalities) - [Read the Latest Articles](https://www.blockrenovation.com/guides/page/1) - Tools - [Renovation Studio](https://www.blockrenovation.com/renovation-planning) - [AI Remodel Planner](https://www.blockrenovation.com/renovation-planning) - [Kitchen Remodel Visualizer](https://www.blockrenovation.com/tools/kitchen-remodel-visualizer) - [Kitchen Cabinet Visualizer](https://www.blockrenovation.com/tools/kitchen-cabinet-visualizer) - [Bathroom Remodel Visualizer](https://www.blockrenovation.com/tools/bathroom-remodel-visualizer) - [Basement Remodel Visualizer](https://www.blockrenovation.com/tools/basement-remodel-AI-designer) - [Estimate Remodeling Costs](https://www.blockrenovation.com/tools/calculate-renovation-cost-estimations) - [Renovation Value Calculator](https://www.blockrenovation.com/tools/roi-calculator) - [Basement Finishing Estimator](https://www.blockrenovation.com/tools/basement-finishing-estimator-planner) 1. [Home](https://www.blockrenovation.com?hsLang=en) 2. [Guide](https://www.blockrenovation.com/guides) 3. [All Articles](https://www.blockrenovation.com/guides/page/1) 4. Search 5. [New York](https://www.blockrenovation.com/guides/tag/new-york) 6. [Apartment and Condos](https://www.blockrenovation.com/guides/tag/apartment-and-condos) # Apartment Gut Renovation NYC: A Unit Owner's Guide By Cheyenne Howard 10.06.2026 [![Share on Facebook](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/facebook-f.svg)](http://www.facebook.com/share.php?u=https%3A%2F%2Fwww.blockrenovation.com%2Fguides%2Fnyc-apartment-gut-renovation-local) [![View Block's Instagram](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/icon-instagram-black.svg)](https://www.instagram.com/blockrenovation) [![Share on LinkedIn](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/icon-linkedin-black.svg)](http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.blockrenovation.com%2Fguides%2Fnyc-apartment-gut-renovation-local) [![Share on Pinterest](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/icon-pinterest-black.svg)](http://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.blockrenovation.com%2Fguides%2Fnyc-apartment-gut-renovation-local&media=https://4612653.fs1.hubspotusercontent-na1.net/hubfs/4612653/block-blog-featured-image-import-cropped/nyc-apartment-remodel.jpg) ![](https://www.blockrenovation.com/hs-fs/hubfs/block-blog-featured-image-import-cropped/nyc-apartment-remodel.jpg?width=640&name=nyc-apartment-remodel.jpg) In This Article Own an apartment long enough and, sooner or later, you'll do a renovation that requires gutting. The catch in New York is that the walls, pipes, and hallways that gut has to pass through belong to the building. Roughly half the decisions in an apartment gut renovation in NYC get made by people who don't live in your unit. Hire a contractor first and ask the building second, and you'll pay for that order in redesign fees and lost months. The sequence below runs the way the project actually moves in a co-op or condo, starting with the document that governs everything after it. Townhouse and single-family owners control their own systems and approvals. Most of this won't apply to them. The broader [gut renovation process in New York](https://www.blockrenovation.com/guides/process/how-to-do-a-gut-renovation-in-new-york?hsLang=en), including asbestos filings, procurement, and the construction phases themselves, is covered separately. ## What you own and what the building owns The line between your apartment and the building runs along the surface of the walls. Finishes, fixtures, interior partitions, cabinetry, and the branch lines running from the riser to your sink are yours to change. Everything those branch lines connect to belongs to the building, and so does everything your crew has to pass through to reach the apartment. The building's side of the line typically includes: - The waste stacks and supply risers behind your kitchen and bathrooms - Structural slabs, columns, and bearing walls - Exterior walls, windows, and the facade - The gas riser and the electrical service feeding your unit - The freight elevator, the lobby, and the hallway outside your door To sort any item in your scope, ask whether changing it reaches a neighbor or a shared system. A new bathroom location affects the apartment below, and a heavier electrical load draws on a riser other units share. Both go to the board before they go to your architect. ### Co-op or condo: who can say no Does it matter whether you own a co-op or a condo? The sequence is the same, but the building's power to refuse is not. A co-op shareholder holds shares and a proprietary lease. The lease requires the corporation's written consent for alterations. That gives the board the right to decline a project outright, and it does not owe you a reason. A condo owner holds real property, with bylaws that usually say the board cannot unreasonably withhold consent. Still, the alteration agreement sets insurance, hours, deposits, and review fees in both cases, and the board controls every shared system your work touches. Partner with experienced New York contractors ![a176d665-aaa4-45b6-be1a-f71089770b87-2](https://www.blockrenovation.com/hs-fs/hubfs/Imported%20sitepage%20images/a176d665-aaa4-45b6-be1a-f71089770b87-2.jpg?width=350&name=a176d665-aaa4-45b6-be1a-f71089770b87-2.jpg) Art Deco Enterprise New York, NY [View more](https://www.blockrenovation.com?hsLang=en) ![b24ae162-bcc5-4fdc-93a1-b6366932b734](https://www.blockrenovation.com/hs-fs/hubfs/b24ae162-bcc5-4fdc-93a1-b6366932b734.jpg?width=350&name=b24ae162-bcc5-4fdc-93a1-b6366932b734.jpg) Aptel Construction LLC New York, NY [View more](https://www.blockrenovation.com?hsLang=en) ![fc8fe730-40aa-11ec-b98a-734a79e3cf58](https://www.blockrenovation.com/hs-fs/hubfs/fc8fe730-40aa-11ec-b98a-734a79e3cf58.webp?width=350&name=fc8fe730-40aa-11ec-b98a-734a79e3cf58.webp) Apex Remodeling LLC New York, NY [View more](https://www.blockrenovation.com?hsLang=en) [Find Contractors](https://www.blockrenovation.com/planner?hsLang=en)   ## Get the alteration agreement before you hire anyone Ask the managing agent for the alteration agreement, house rules, work rules, insurance exhibit, and fee schedule before you interview a single contractor or sign with an architect. The agreement is the contract between you and the building. It defines the project you're allowed to run. Reading it first tells you what to design and how long you'll have to finish. Learning [how to read an alteration agreement](https://www.blockrenovation.com/guides/what-is-an-alteration-agreement-for-buildings-in-new-york-city-and-how-to-read-one?hsLang=en) is worth an hour of your time first. Five terms reshape a gut renovation more than any others. - **Work hours.** Most buildings allow work from nine to four or nine to five on weekdays only, and many push noisy work later in the morning. That is a shorter day than the city permits. Build the schedule on the building's hours. - **Insurance.** Contractors typically need $1 million per occurrence and $2 million aggregate in general liability, with the corporation and managing agent named as additional insureds. Some buildings require $5 million. That requirement alone rules out a good share of the contractors you'd otherwise call. - **Deposits and fees.** Expect a refundable damage deposit, often $5,000 to $10,000 or 10 to 15% of the budget. Add a processing fee and the cost of the building's architect or engineer reviewing your drawings. - **Wet work rules.** Many agreements define wet work (plumbing, tile, anything touching a water line) and restrict when it can happen, sometimes to certain months. Wet-over-dry clauses go further and bar a new kitchen or bath above a neighbor's bedroom or living room. - **A completion deadline.** Board consent usually sets a start window and a required finish date. The finish date is often 90 to 120 days out. ## Design around the building's fixed points Checking the building's fixed points before your architect develops a layout saves you a redesign and the weeks of board review that come with it. The fixed points are the waste stack, the supply risers, the electrical service, and the structure. A bathroom that stays within a few feet of its stack is ordinary plumbing. Move it across the apartment, though, and you need a drain route with enough slope and a path that clears the slab and framing. You also need a building willing to accept a wet room above someone's dry one. Electrical service works the same way. Rewiring inside your walls is yours to do, but an induction range, an electric dryer, heated floors, and new HVAC can exceed what the riser delivers to your unit. Raising that capacity is a building decision. In a prewar building it may not be available at any price. Have your architect answer four questions before schematic design starts. Where is the nearest stack? What sits beneath any room you want to make wet? How many amps reach the apartment? Which walls are bearing? The answers settle the layout early. And that's before you get to gas. ### Gas piping and shutoffs Picture a kitchen where the range moves four feet to the other side of the room. In New York, those four feet are a gas piping change. The work has to be filed with the Department of Buildings and done by a licensed master plumber. The work itself is routine, and the trouble starts only if the gas gets shut off along the way. Once service is off for any reason, [restoring gas](https://www.nyc.gov/site/hpd/services-and-information/gas.page) requires the plumber's filing, a DOB review and possible inspection, a pressure test, and a two-step Con Edison inspection and leak test. Only then is the meter turned back on. On a shared riser, that outage reaches every apartment on the line. Con Edison also needs access to each unit to restore cooking gas, so one neighbor's locked door delays everyone. Buildings have gone months without cooking gas this way. An induction range and an electric dryer take the question off the table. Many boards now steer unit owners that way. ### Landmark buildings and anything on the exterior wall A through-wall air conditioner looks like an interior decision until the building is landmarked. Then any cut through the facade, and any window that doesn't match the original, needs a Landmarks Preservation Commission permit on top of the DOB filing. Decorative masonry is off limits. Ask the managing agent whether the building is designated before you specify HVAC. ![](https://www.blockrenovation.com/hs-fs/hubfs/raw_assets/public/block-theme-v2/images/ctas/tools/cost-photo.jpg?width=800&height=1000&name=cost-photo.jpg) Renovation cost calculator Start with a realistic budget Get an initial estimate based on your space and project details. Your initial estimate $35,000 - $45,000 ![](https://www.blockrenovation.com/hs-fs/hubfs/raw_assets/public/block-theme-v2/images/ctas/tools/cost-example-1.jpg?width=128&height=128&name=cost-example-1.jpg) $39,000 ![](https://www.blockrenovation.com/hs-fs/hubfs/raw_assets/public/block-theme-v2/images/ctas/tools/cost-example-2.jpg?width=128&height=128&name=cost-example-2.jpg) $42,000 ![](https://www.blockrenovation.com/hs-fs/hubfs/raw_assets/public/block-theme-v2/images/ctas/tools/cost-example-3.jpg?width=128&height=128&name=cost-example-3.jpg) $45,200 [Calculate your project](https://www.blockrenovation.com/tools/calculate-renovation-cost-estimations?modal=instantlyEstimate&hsLang=en)   ## Hire a contractor the building will accept Vet for the building first and the apartment second. The building sets the insurance minimum and the paperwork. A contractor who can't clear those won't get past the lobby, no matter how good the portfolio looks. Four things belong on the first phone call: - **A Home Improvement Contractor license.** The city requires a DCWP HIC license number on the permit for work in a co-op or condo unit [when the unit owner hires the contractor](https://www.nyc.gov/site/buildings/property-or-business-owner/home-improvement-contractor-permit-requirements.page). Ask for the number and check it before you compare bids. - **Insurance that matches the exhibit.** Hand the contractor the building's insurance exhibit on day one and ask for a certificate naming the corporation and managing agent as additional insureds. - **Co-op and condo references.** Ask for two recent jobs in managed buildings and call the super at one of them. The super knows whether the crew protected the hallway and stopped at four. - **A plan for the filing.** Your architect files the plans, but the contractor pulls the permits and schedules inspections. Confirm who is expediting the job and who pays for it, because an unassigned filing can wait weeks. ## The approval sequence and what it does to your start date Why does a project with finished drawings still have no start date? A unit owner's approvals run in series. Each one waits on the one before it. The building reviews before the city does, and the city now checks that the building has signed off. **The approval sequence for a co-op or condo gut renovation, who signs off at each step, and what stalls it** | Step | Who signs off | What stalls it | | --- | --- | --- | | Alteration package | Managing agent, then the building's reviewing architect or engineer | Missing insurance certificates, incomplete drawings, revision requests | | Board consent | The board, at its scheduled meeting | A package that misses the submission deadline waits for the next monthly meeting | | DOB filing | Your architect, with the board attesting in DOB NOW | The board's authorized representative hasn't completed the attestation | | Permits and inspections | DOB and the licensed plumber and electrician | Plan examination, inspection scheduling, hidden conditions | Since February 2, 2026, the board is a required stakeholder on DOB NOW filings by condo unit owners and co-op shareholders. Its representative has to attest that the board authorized the filing before it can proceed. Many boards attest only after formal consent, and some state in writing that the attestation is not final approval. Plan on two separate sign-offs from the same board. The [co-op and condo board approval process](https://www.blockrenovation.com/guides/guide-to-nyc-condo-and-co-op-board-approval-process-for-renovations?hsLang=en) has its own rhythm. Most boards meet once a month. NYC-based interior designer Meredith Sells has watched review time stretch projects further than any construction problem. ![Meredith\_Sells-Mar-02-2026-04-29-10-2466-PM](https://www.blockrenovation.com/hs-fs/hubfs/Meredith_Sells-Mar-02-2026-04-29-10-2466-PM.jpg?width=5472&height=3648&name=Meredith_Sells-Mar-02-2026-04-29-10-2466-PM.jpg) Sometimes the building takes a long time to review the drawings. That's part of the messy side of renovation that doesn't show up in the before-and-after. Meredith Sells, NYC-Based Interior Designer, Block Renovation Build that review time into your calendar from the start. Ask the managing agent when packages are due before each meeting and whether the authorized representative can attest between meetings. ## Running a job inside an occupied building A plumber who is ready on Tuesday may wait until Thursday because that is when the building approved the riser shutdown. Demolition debris needs a reserved freight elevator and a protected path through a lobby full of neighbors, and neither shows up in a contractor's bid unless you put it there. The city permits construction from seven in the morning to six in the evening on weekdays and requires an After Hours Variance for anything earlier, later, or on a weekend. The building almost always cuts that further, and some bar noisy work before 10 or on Fridays, which can take a third of the labor time out of a schedule built on an eight-hour day. Once demolition starts, the ownership line gets tested for real. Open a wall in a 1920s building and you may find a riser the drawings misplaced or a slab that can't take the drain route. Sorina Panfil, co-founder of [Art Deco Enterprises](https://www.artdecoreno.com/) and a [Block-vetted contractor](https://www.blockrenovation.com/contractor/art-deco-enterprises?hsLang=en) working across the city, has seen that moment reach well past the repair itself. ![a176d665-aaa4-45b6-be1a-f71089770b87-2](https://www.blockrenovation.com/hs-fs/hubfs/Imported%20sitepage%20images/a176d665-aaa4-45b6-be1a-f71089770b87-2.jpg?width=640&height=480&name=a176d665-aaa4-45b6-be1a-f71089770b87-2.jpg) When we open a wall and discover that the existing conditions are significantly worse than expected, the impact isn't limited to the cost of repairing them. In New York, that discovery can trigger additional building requirements, revised work, additional inspections and sometimes changes involving the DOB. Sorina Panfil, Co-Founder, Art Deco Enterprises She ties the rest of that to the calendar. "There is the repair itself, building approval, inspection scheduling and potentially permit-related work," she says. "That's why hidden conditions can affect the schedule just as much as the budget." A 10 to 20% contingency covers the repair, but only a schedule with slack in it covers the second board review. Two more prewar realities belong in the plan before demolition. In a multiple dwelling built before 1960, the city presumes every painted surface contains lead. Any work disturbing paint needs certified workers and lead-safe practices. And in buildings built before 1987, an asbestos assessment has to be completed before the permit is issued. ## Keeping the disruption to your daily life small Homeowners who plan to stay in the apartment through a gut usually move out by the second week. Water and power go off for days at a time, and demolition dust reaches every closet. Plan on living elsewhere for the full construction window. Sign the short-term lease to start when board consent and permits are in hand rather than when the contract is signed, or you'll pay rent on two homes while the board deliberates. - Put furniture in storage rather than in the unit, so the crew isn't working around it and the building's protection plan doesn't have to cover it. - Introduce yourself to the neighbors above and below before demolition, and give them the schedule and your phone number. - Have your contractor post the work hours and a contact name on your door, so a neighbor with a complaint has someone to call other than the board. - Route mail and packages to your temporary address, since the lobby will already be handling the contractor's. Partner with experienced New York contractors ![2b510d5c-85a0-4913-bf3b-bbf78b3f2833](https://www.blockrenovation.com/hs-fs/hubfs/2b510d5c-85a0-4913-bf3b-bbf78b3f2833.jpg?width=350&name=2b510d5c-85a0-4913-bf3b-bbf78b3f2833.jpg) Artisan's Touch LLC New York, NY [View more](https://www.blockrenovation.com?hsLang=en) ![32512911-9c6d-4f30-bfba-f7b97aed2a66](https://www.blockrenovation.com/hs-fs/hubfs/32512911-9c6d-4f30-bfba-f7b97aed2a66.jpg?width=350&name=32512911-9c6d-4f30-bfba-f7b97aed2a66.jpg) Shining Sky Inc New York, NY [View more](https://www.blockrenovation.com?hsLang=en) ![d42e52a2-05d2-46d4-a469-7116be7fdc35](https://www.blockrenovation.com/hs-fs/hubfs/d42e52a2-05d2-46d4-a469-7116be7fdc35.jpg?width=350&name=d42e52a2-05d2-46d4-a469-7116be7fdc35.jpg) Agalliu Contracting LLC New York, NY [View more](https://www.blockrenovation.com?hsLang=en) [Find Contractors](https://www.blockrenovation.com/planner?hsLang=en) ## The costs the building adds on top of the contractor's number The contractor's bid covers construction. The building bills a second set of costs on top of it. On a co-op or condo gut, those building-side and professional costs commonly add $5,000 to $30,000, separate from the construction ranges for [New York City apartment renovation costs](https://www.blockrenovation.com/guides/cost/apartment-remodel-costs-in-new-york-city?hsLang=en). - The building holds a refundable damage deposit until the super signs off on the finished work. - The managing agent charges a processing fee for the alteration package. - The building's reviewing architect or engineer bills you for the first review and again for revisions. - Any coverage above a contractor's usual insurance gets priced into the bid. - Late-completion charges accrue daily past the agreed finish date. - Temporary housing and storage run for the full schedule, including the approval months before demolition. ## Find the right contractor for your apartment gut renovation with Block Renovation A contractor who already meets the building's insurance minimum and has worked inside a co-op gets you to a start date faster than one learning the rules on your project. Block matches homeowners with vetted local contractors. Every bid is compared against the same scope with the building's rules written in. That makes it easy to see whether a low number is low because it left out the protection plan. Project planners review each scope for missing line items before the board sees it, and payments release through Block's progress-based system as milestones are approved. A hidden-condition change order gets priced and reviewed before you commit to it. Start by telling Block about your [renovation in New York City](https://www.blockrenovation.com/locations/new-york-city?hsLang=en), and let the right contractors compete for the project. Remodel with confidence through Block ![Happy contractor doing an interview](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/ctas/cta-inline-hire-contractor.jpg) Connect to vetted local contractors We only work with top-tier, thoroughly vetted contractors ![Couple planning their renovation around the Block dashboard](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/ctas/cta-inline-hire-transparency.jpg) Get expert guidance Our project planners offer expert advice, scope review, and ongoing support as needed ![Familty enjoying coffee in their newly renovated modern ktchen](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/ctas/cta-inline-about-block.jpg) Enjoy peace of mind throughout your renovation Secure payment system puts you in control and protects your remodel [Get Started](https://www.blockrenovation.com/planner?hsLang=en) ## Frequently asked questions Can a co-op board stop me from gut renovating my apartment? Yes, it can. The proprietary lease requires the corporation's written consent for alterations. A co-op board can decline a project without giving a reason. Condo boards have less latitude, since most bylaws say consent can't be unreasonably withheld, but they still control the shared systems and set the terms of the alteration agreement. Can I move the kitchen or bathroom in an NYC apartment? You can in some buildings, and the building makes the call. A new wet room needs a drain route to a stack with enough slope, a path that avoids structure, and a building that allows wet rooms above a neighbor's dry space. Many alteration agreements bar that last condition outright, so check before the layout is drawn. How long does board approval take for a gut renovation? Plan on one to three months from a complete package to written consent. The building's reviewing architect typically needs a few weeks, boards usually meet once a month, and any revision request restarts part of that cycle. A package that misses a submission deadline waits for the next meeting. Renovate confidently with [Block](https://www.blockrenovation.com?hsLang=en). Easily compare quotes from top quality contractors, and get peace of mind with warranty & price protections. Learn about [Block's editorial process](https://www.blockrenovation.com/editorial-policy?hsLang=en). [New York](https://www.blockrenovation.com/guides/tag/new-york) [Apartment and Condos](https://www.blockrenovation.com/guides/tag/apartment-and-condos) ![Cheyenne Howard](https://www.blockrenovation.com/hs-fs/hubfs/Cheynne.png?width=150&name=Cheynne.png) Written by Cheyenne Howard Cheyenne Howard Cheyenne Howard is a Project Planner at Block Renovation who brings a thoughtful, organized approach to renovation planning. With a strong attention to detail and experience supporting a wide range of projects, she works closely with clients to create a smooth and positive planning experience. ![Woman enjoying making coffee in modern ktchen](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/cta-renovate-confidently.jpg) Renovate confidently with Block Easily compare quotes from top quality contractors, and get peace of mind with warranty & price protections. [Get Your Estimates](https://www.blockrenovation.com/planner/route?hsLang=en) Thousands of homeowners have renovated with Block ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/google_logo.svg) 4.5 Stars (100+) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/houzz_logo.svg) 4.7 Stars (100+) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/yelp_logo.svg) 4.5 Stars (75+) [Read homeowner reviews](https://www.blockrenovation.com/reviews?hsLang=en) ![Woman enjoying making coffee in modern ktchen](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/cta-project-gallery.jpg) See what homeowners have built with Block [View project gallery](https://www.blockrenovation.com/customer-gallery?hsLang=en) ## Related Articles ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/arrow-left-narrow.svg) ![](https://www.blockrenovation.com/hubfs/raw_assets/public/block-theme-v2/images/arrow-right-narrow.svg) [![](https://www.blockrenovation.com/hs-fs/hubfs/block-blog-featured-image-import-cropped/nyc-apartment-remodel.jpg?width=640&name=nyc-apartment-remodel.jpg) New York Apartment Gut Renovation NYC: A Unit Owner's Guide](https://www.blockrenovation.com/guides/nyc-apartment-gut-renovation-local) 10.06.2026 [![](https://www.blockrenovation.com/hs-fs/hubfs/Queens%20Kitchen%20Shelving.jpg?width=640&name=Queens%20Kitchen%20Shelving.jpg) New York Queens Kitchen Remodeling: Costs & Contractors](https://www.blockrenovation.com/guides/queens-kitchen-remodeling-costs-permits-planning?hsLang=en) 10.03.2026 [![](https://www.blockrenovation.com/hs-fs/hubfs/Bathroom%20Double%20Mirror%20and%20Large%20Vanity.jpg?width=640&name=Bathroom%20Double%20Mirror%20and%20Large%20Vanity.jpg) New York Luxury Apartment Remodeling NYC: Costs & Project Examples](https://www.blockrenovation.com/guides/luxury-apartment-remodeling-nyc-costs-project-examples?hsLang=en) 10.02.2026 [![A row of brownstone houses in Brooklyn, NY ](https://www.blockrenovation.com/hs-fs/hubfs/brownstone.jpg?width=640&name=brownstone.jpg) New York Renovating a Brooklyn Brownstone? Essential Tips & Costs](https://www.blockrenovation.com/guides/process/brooklyn-brownstone-renovation-tips-considerations?hsLang=en) 10.01.2026 [![](https://www.blockrenovation.com/hs-fs/hubfs/Combining%20Two%20Apartments.png?width=640&name=Combining%20Two%20Apartments.png) New York Combining Two Apartments in NYC and Other Cities: Costs & Practical Advice](https://www.blockrenovation.com/guides/combining-two-apartments-in-nyc-and-other-cities-local?hsLang=en) 09.28.2026 Renovate confidently - Top quality contractors - Warranty & price protections - Expert resources [Get Your Estimates](https://www.blockrenovation.com/get-started?hsLang=en) [Get Your Estimates](https://www.blockrenovation.com/get-started?hsLang=en) Renovate confidently with Block. Easily compare quotes from top quality contractors, and get peace of mind with warranty & price protections - [Ask ChatGPT About Block](https://bit.ly/BlockRenovation) - [FAQ](https://www.blockrenovation.com/faq) - [Reviews](https://www.blockrenovation.com/reviews) - [How It Works](https://www.blockrenovation.com/how-it-works) - [For Contractors](https://www.blockrenovation.com/contractors) - [Gallery](https://www.blockrenovation.com/customer-gallery) - [Guides/Blogs](https://www.blockrenovation.com/guides) - [Careers](https://www.blockrenovation.com/welcome/careers) - [Tools](https://www.blockrenovation.com/tools) - [![facebook](https://www.blockrenovation.com/hubfs/facebook.png)](https://www.facebook.com/blockrenovation/) - [![instagram](https://www.blockrenovation.com/hubfs/instagram.png)](https://www.instagram.com/blockrenovation/) - [![Linkedin](https://www.blockrenovation.com/hubfs/linkedin.png)](https://www.linkedin.com/company/blockrenovation/) - [![pinterest](https://www.blockrenovation.com/hubfs/pinterest.png)](https://www.pinterest.com/blockrenovation/) Email [sales@blockrenovation.com](mailto:sales@blockrenovation.com) Learn more about renovating Sign Up [Refer a friend and get up to $1,200](https://www.blockrenovation.com/referral?hsLang=en) © Block 2026 - [Terms of Use](https://www.blockrenovation.com/terms) - [Privacy Policy](https://www.blockrenovation.com/privacy) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Cheyenne Howard", "url" : "https://www.blockrenovation.com/guides/author/cheyenne-howard" }, "dateModified" : "2026-10-06T13:30:00.953Z", "datePublished" : "2026-10-06T13:30:00.000Z", "headline" : "Apartment Gut Renovation NYC: A Unit Owner's Guide", "image" : [ "https://www.blockrenovation.com/hubfs/block-blog-featured-image-import-cropped/nyc-apartment-remodel.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.blockrenovation.com/guides/nyc-apartment-gut-renovation-local", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.blockrenovation.com/hubfs/block%20logo%20orange.jpg" }, "name" : "Block Renovation" } } ```