

In one of our biggest NYC home renovations to date, Gallery KBNY undertook the complete overhaul and gut renovation of a Brooklyn brownstone, standing four-stories in the heart of Bed-Stuy, that involved touching every square inch of the entire space.
The owner of this property, a real estate developer who was looking for an all-inclusive design build architecture firm to handle the entire process, hired Gallery and tasked us with creating an owner’s quadplex with a separate garden studio apartment as a rental unit.













For a full apartment of about 1,700 square feet, construction typically runs five to six months. Design, board approval, and permitting come first and usually take four to six months, so most full renovations move from first consultation to move-in in 10 to 12 months. Scope, building rules, and how much infrastructure is being replaced set where a project falls in that range.
Read More: How Long To Renovate An Apartment In NYC?
The construction portion of a full kitchen renovation typically takes 7 to 11 weeks. Door to door, the timeline depends mostly on the building: about 10 to 14 weeks in a private townhouse, 14 to 20 weeks in a condo, 16 to 24 weeks in a post-war co-op, and 20 to 30 weeks in a pre-war co-op, where board and engineering review take longer. Gallery KBNY orders custom cabinetry, stone, and long-lead appliances during design and approvals, so materials arrive ready for the build.
Read More: How Long Does a Kitchen Renovation in NYC Take? A 2026 Timeline Breakdown
The construction portion of a bathroom renovation typically takes three to four weeks. Gallery KBNY renovates bathrooms as part of larger interior renovations, so bathroom work is sequenced alongside the rest of the apartment within the overall project schedule.
Learn More: Our NYC Bathroom Renovations
Board review and execution of the alteration agreement typically take 6 to 10 weeks in a post-war co-op and 8 to 14 weeks in a pre-war co-op, where asbestos filings, electrical load letters, and engineering review add steps. DOB permits usually run at the same time. A complete package with full technical drawings and specifications tends to clear the building's reviewing architect in one or two rounds, which keeps the approval phase on schedule.
Get Into The Specifics: In-Depth Co-Op Board Approval Process For Complex NYC Renovations: What to Expect
Considering a brownstone or townhouse renovation in NYC? View our full portfolio of brownstone and townhouse renovation before and afters, learn more about Gallery KBNY, or simply contact us today.
We are a New York Times-featured design-build firm in New York City with a full-service approach to residential renovations in Manhattan and Brooklyn that includes everything from interior design and architectural services to facilitating building management and board approval, to construction and construction management. We’re experts in renovating pre-war homes, kitchens, bathrooms, flooring, sourcing custom pieces, building entirely new rooms (or even balconies), millwork, and all that falls in between. Let us bring your dream home to life.
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