Upper West Side Pre-War Co-Op Renovation | 801 West End Ave

Living room with floor-to-ceiling white built-in bookshelves and herringbone floors in a pre-war co-op at 801 West End Avenue by Gallery KBNY
Gallery KBNY's six-month design-build renovation of a 1,400-square-foot pre-war co-op at 801 West End Avenue in Manhattan's Upper West Side
Street map of the Upper West Side with a red pin near West End Avenue and West 99th Street marking the project location

About This Renovation

When we were enlisted for this co-op renovation on the Upper West Side, the dated pre-war space needed some work. The family recently purchased the Manhattan home near Broadway with the intention of reinvigorating the spacious property without losing the historic character. With a speciality in pre-war renovations in NYC, we were happily up for the challenge.

‍


Project at a glace

Job Type
Full Pre-War Co-Op Renovation
Ownership Type
Co-Op
Building
full gut renovation
AddresS
801 West End Ave
Neighborhood
Upper West Side, Manhattan
Year Built
1910
Square Footage
1,400 sq ft
Duration
6 Months
SCOPE
Full Gut Renovation
SERVICES
Design-Build (Interior Design, Architectural, Board Approvals, Construction Management)
DESIGN STYLE
Transitional Pre-War
DESIGNER
Design By Gallery

Timeless Design

After hearing the client’s objective, we designed a classically-inspired interior that paired together timeless elements like the herringbone floors throughout, Carrera marble bathrooms, and sleek shaker cabinetry to meet the apartment’s core historic aesthetic from a modern perspective. We renovated the entire apartment, while fully gutting the kitchen and both bathrooms.


White fireplace with coffered molding, brass sconces and herringbone floor in a pre-war co-op at 801 West End Avenue by Gallery KBNY
Marble-tiled bathroom with frameless glass shower, black vanity and window at 801 West End Avenue, Upper West Side by Gallery KBNY

Bathroom Expansion

Beyond the design face-lift, we also provided practical improvements to the co-op, by converting the half-bathroom/powder room in the back office into a second full bathroom - a rarity in NYC apartments and immediate lifestyle upgrade for any growing family. Additionally, we replaced the bathtub In the main bathroom with a walk-in shower, while also changing the orientation of the space.


Additional Highlights

  • Removed old cloth wiring (a common surprise in old pre-war renovations) and rewired entire apartment
  • Lightly sanded and refreshed all walls and restored existing mouldings, then painted 
  • Custom millwork in the living room and office

Considering a condo or co-op renovation in NYC? For timely inspiration, consider our latest piece, Condo Renovation Ideas 2026. View our portfolio of co-op & condo renovation before and afters, learn more about Gallery, 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 Gallery bring your dream home to life.

Kitchen with white shaker cabinets, glossy tile backsplash and professional range in a pre-war co-op at 801 West End Avenue by Gallery KBNY

BEFORE + PROGRESS

Before renovation: bare Upper West Side living room with original wall paneling and a mantel mirror, 801 West End Avenue
Before renovation: narrow pre-war entry hall with a lantern pendant and striped runner at 801 West End Avenue
Before renovation: dated kitchenette with white wall cabinets, dryer and laminate counter at 801 West End Avenue
Before renovation: beamed pre-war dining room and parlor with crown moldings and a chandelier at 801 West End Avenue
Before renovation: small wall-mounted sink with exposed pipes and a framed mirror at 801 West End Avenue
Before renovation: pre-war hallway with teal-painted door casings and built-in cabinet at 801 West End Avenue
Before renovation: bedroom with ceiling fan, wall paneling and a teal window frame at 801 West End Avenue
Before renovation: small kitchen with a white refrigerator and new range awaiting install at 801 West End Avenue
Before renovation: stepped plaster ceiling molding seen through a doorway toward the living room at 801 West End Avenue
Before renovation: original wood mantel with white tile surround and plaster details at 801 West End Avenue
During construction: quartz slab and painted trim profile samples reviewed for the apartment at 801 West End Avenue by Gallery KBNY
During construction: Carrara herringbone mosaic tile sample selected for a bathroom at 801 West End Avenue by Gallery KBNY
During construction: gray and white marble geometric mosaic floor tile sample for the bath at 801 West End Avenue by Gallery KBNY
During construction: oak herringbone floor stain test patches, including a special walnut, at 801 West End Avenue by Gallery KBNY
During construction: conduit trench cut across old plank subfloor beside French doors at 801 West End Avenue by Gallery KBNY
During construction: demolished bathroom with open stud cavities and exposed plumbing at 801 West End Avenue by Gallery KBNY
During construction: gutted room with metal framing, exposed risers and posted plans at 801 West End Avenue by Gallery KBNY
During construction: stripped pre-war bedroom with wall paneling and opened subfloor at 801 West End Avenue by Gallery KBNY
During construction: worn plank subfloor revealed after old flooring removal at 801 West End Avenue by Gallery KBNY
During construction: demolition debris of old parquet pieces in a hallway at 801 West End Avenue by Gallery KBNY
During construction: new white oak herringbone flooring laid in a sunny living room at 801 West End Avenue by Gallery KBNY
During construction: demolished bathroom wall with a cast iron tub and exposed block at 801 West End Avenue by Gallery KBNY
During construction: table saw set up before pre-war French doors and paneled walls at 801 West End Avenue by Gallery KBNY
Before renovation: empty room with oak floors and a removed pedestal sink at 801 West End Avenue
No items found.

NYC RENOVATION FAQS

How Long Does A Full Apartment Renovation Take?

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?

How Long Does A Kitchen Renovation Take?

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

How Long Does A Bathroom Renovation Take?

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

How Long Does Co-Op Board Approval Take?

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

Our success stories

Forget about any horror story you have heard about contractors. Stop right here. This is the design-build contractor you want to HIRE. It was a breeze working with Gallery on our apartment combination project. We looked at quiet a few design-build companies and chose Gallery because of the great communication and the fact that they were able to manage material purchasing and product selection for us. They were honest, took responsibility and pride in their work.”
Zoe C
Upper West Side, Manhattan, NY.
Gallery KBNY has been absolutely amazing with my renovation. As a complete newbie, I was expecting a stressful process, but they made everything incredibly smooth—and I learned so much along the way. They’re truly a concierge-level service that genuinely cares about both their clients and the quality of their work. I know I couldn’t have chosen a better team. Colin, Morgan, and Leo were fantastic with logistics; Kate is a brilliant designer; and Alex was, hands down, one of the most responsive and professional contacts I’ve ever worked with. The entire experience was marked by ease, efficiency, quality, and grace. 10/10 recommend!
Irene G.
Manhattan, NY.
We used Gallery KBNY to re-design our kitchen and other rooms. Avi Zikry's design was amazing. His vision enabled us to create a whole new look and a better functioning space. That was a year ago, and we are very happy with the results. I highly recommend him. View full renovation: https://www.gallerykbny.com/our-work/manhattan-apartment-renovation-91-central-park-west
Shivraj B.
Upper East Side, Manhattan, NY.
We loved working with Avi and the whole team at Gallery Kitchen and Bath. From our very first meeting, we felt like we were in great hands. Avi is so responsive—always available, quick to come up with solutions, and he and his team helped us pivot whenever needed without losing momentum. Renovating in NYC is complicated, but they handled all the logistics seamlessly and made the process so much less stressful. They do everything—design, architectural work, and managing every detail and skilled trade needed for a full gut renovation of our loft apartment —so we never had to worry. They are in full control of their workers, which allows them to stay on track and adapt quickly. They were creative and helpful when we needed to pivot on design unexpectedly. We felt like we had true partners that genuinely cared about our project and our well being! The finished space truly exceeds our expectations—we are so proud of our beautiful new home. It’s hard to put into words how positive our experience was overall. We would not hesitate for a moment to recommend Avi and the entire team at Gallery. They will be our very first call if we ever need to renovate again in the future… and you should call right now if you’re considering a renovation! View The Renovation: https://www.gallerykbny.com/our-work/chelsea-co-op-renovation-107-w-25th-st
Jason C
Carroll Gardens, Brooklyn, NY.
I enthusiastically recommend Gallery, who did a superb job renovating our once decrepit 2-bedroom apartment in Brooklyn Heights. The project involved a full kitchen and bathroom renovation, as well as new electrical, refinished floors, new doors, new baseboards, and some rearranged bedroom closets. What is more, when I have them the wrong paint color for my daughter’s bedroom, and the team started to paint that color, they got the paint I wanted and corrected the “mistake” (which has actually been my mistake) and didn’t charge me for that either. I’d choose them again 100 times over and definitely recommend them to anyone considering a similar project.
Jane M
Brooklyn Heights, Brooklyn, NY.
We interviewed about 8 different companies before hiring a contractor for our apartment renovations. Although Gallery was not the cheapest option, we chose them based on their upfront billing format, high client reviews, and depth of knowledge. We loved how it was a “one stop shop” and were paying one bill, up front. Everything was very transparent and we could not be happier with the results! Our apartment looks exactly how we imagined. Thank you!!
Fiki K.
Gramercy Park, Manhattan, NY.
View all reviews
About Gallery KBNY

Gallery KBNY is a full-service design-build firm featured in The New York Times, specializing in the architecture, interior design, and renovation of apartments, co-ops, condominiums, townhomes, and lofts across Manhattan and Brooklyn. Our integrated team of architects, designers, contractors, and project managers manages every phase from board approvals and DOB permitting through design and construction. A founding partner is involved in every project, start to finish. Because architecture, design, permitting, and construction are coordinated under one roof, the process remains streamlined, accountable, and transparent from start to finish. Our work has also appeared in Forbes, Architectural Digest, and Inc., and is backed by 100+ five-star client reviews.

let’s

Design-Build

together

By providing your phone number, you agree to receive text messages from Gallery. Message and data rates may apply. Message frequency varies.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form
Portrait of Avi Zikry, founder and CEO of Gallery KBNY, author

Managing Partner/CEO

Avi Zikry

Avi Zikry is the CEO and managing partner of Gallery KBNY, a full service design-build firm specializing in the design and interior renovation of apartments, townhomes, and lofts in NYC. Under his leadership, Gallery KBNY has earned the reputation for delivering exceptional service and beautiful homes to our select group of clients. Avi's strategic positioning extends beyond the brand. He has strategically cultivated a network of industry partners and suppliers, forging strong alliances that allow Gallery KBNY to access cutting-edge technologies and materials. By staying abreast of industry trends and technological advancements, Avi ensures the firm remains at the forefront of innovation, consistently offering clients the latest design solutions and construction methodologies.