378 West End Avenue
378 West End Avenue, New York, NY 10024
Upper West Side
BBL 1011697504 · BIN 1090883
- Year built
- 1915
- Type
- Condominium
- Units
- 58
- Floors
- 18
- Landmark
- No
- Pets
- Pets permitted; the building includes a dedicated pet-washing room
Every recorded sale at this building, 2022–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $2,491
- Listing discount
- 0.0%
- Recorded sales
- 64
- On record
- 2022–2025
378 West End Avenue is one of the cleaner examples on the Upper West Side of how a prewar landmark and a contemporary tower can be made to read as a single building. Alchemy Properties acquired the site from the West End Collegiate Church in 2018 — the 1915 corner building, designed by Schwartz & Gross, had housed The Collegiate School until the school's 2018 relocation. Rather than demolish, the developer restored the historic structure and joined it to a new limestone tower designed by COOKFOX Architects, producing 58 condominium residences that launched for sale in 2021 and sold out across 2021–2023.
The architectural argument is preservation as marketing. The historic building's terra-cotta cresting, zinc sundial, and balconies were repaired; the new tower was clad in limestone calibrated to read as a palazzo rather than a glass intrusion. The result is a building that sits comfortably inside the West End–Collegiate Historic District Extension — where the 1915 structure is a contributing building under Landmarks Preservation Commission review — while delivering the floor plans, ceiling heights, and amenity program of new construction. For the Upper West Side family buyer who wants new-development systems without the glass-box aesthetic, that combination is the entire point.
The apartment composition reinforces the family positioning. Layouts run from one-bedroom through six-bedroom configurations plus a penthouse collection, with no studios — this is a building of substantial homes, not a mid-market unit-count play. COOKFOX's biophilic design language (the firm is known for integrating daylight, planting, and a private garden into its projects) gave 378 a wellness-and-amenity story that landed well in the pandemic-era market into which it sold.
Architecture and unit composition
The 58 residences distribute across the restored 12-story historic building and the 18-story new tower. The historic corner structure carries a rusticated stone ground story, a two-story stone door surround with a swan's-neck pediment, polychrome terra-cotta ornament, and multiple cornices; the new portion is a limestone palazzo. Interiors are new-construction throughout — high ceilings, large windows, and the full mechanical package of a 2021 building.
Apartment scale skews large: one-bedroom homes at the smaller end, up to six-bedroom layouts and a penthouse collection that includes a duplex/triplex of roughly 7,485 square feet with multiple outdoor spaces. The amenity program runs to roughly 11,000 square feet across the pool, spa, fitness and sports facilities, music studio, screening room, club lounge, library, children's playroom, and private garden.
Building operations
378 West End Avenue operates as a full-service condominium with 24-hour doorman and concierge, on-site parking, and the extensive amenity roster noted above — pool, spa, fitness center, squash and basketball courts, sports simulator, music recording studio, screening room, club lounge, library, children's playroom, and a private garden. The pet-washing room signals a building designed around resident daily life rather than a pure investment product. Common charges and property taxes reflect a new-construction full-service building; buyers should model the full monthly carry.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $0 (under cap)
- Per unit / month range
- —
Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the engineer identified conditions requiring monitoring or repair before the next inspection cycle. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent). Source: NYC DOB facade filings (FISP) · The Roebling Research Library.
See the full facade history →Recent sales
378 West End Avenue prices as ultra-luxury Upper West Side new development. Sponsor sellout ran from entry pricing around $3.6 million through penthouse pricing in the mid-$20 million range, with a building average in the high-$2,000s per square foot (roughly $2,700–$2,800/sf). Because the building is a recent sellout with a finite 58-unit stack, resale comparables are still thin and apartment-specific — exposure, floor, the historic-versus-new portion, and outdoor space all drive meaningful pricing variation. Per-square-foot remains the right metric for this condo; the strongest pricing anchors are the most recent closings on the specific line rather than building-wide averages. Specific resale velocity figures should be confirmed against current data at the time of any transaction.
Recent closings at this building, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Apr 14, 2025 | 7A | 4 BR · 4.5 BA · 2,888 sf | $7,275,000 | $2,519/sf | -2.7% |
| Aug 29, 2024 | 7DSponsor Sale | 3 BR · 3.5 BA · 2,468 sf | $5,900,000 | $2,391/sf | -1.6% |
| May 23, 2024 | 8DSponsor Sale | 3 BR · 3.5 BA · 2,468 sf | $6,150,000 | $2,492/sf | -1.2% |
| May 17, 2024 | 14DSponsor Sale | 3 BR · 2.5 BA · 2,091 sf | $5,725,000 | $2,738/sf | -4.2% |
| Jan 30, 2024 | 7B | 3 BR · 3.5 BA · 2,910 sf | $9,100,000 | $3,127/sf | +5.2% |
| Aug 29, 2023 | 9DSponsor Sale | 3 BR · 3.5 BA · 2,468 sf | $6,250,000 | $2,532/sf | -0.8% |
| Aug 25, 2023 | 14BSponsor Sale | 3 BR · 3 BA · 2,163 sf | $6,475,000 | $2,994/sf | +0.0% |
| Jul 27, 2023 | 15CSponsor Sale | 5 BR · 4.5 BA · 3,133 sf | $10,200,000 | $3,256/sf | -2.9% |
Market read. Most recent trades (2025) cleared a median $2,491/sf across 1 sale. Median listing discount 0.0% from the last ask.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01169-7504) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.
What to know if you’re buying
The preservation-plus-new-construction hybrid is the product. You get new-development systems, ceiling heights, and amenities inside a building that reads as prewar West End Avenue. Buyers who want a pure glass tower should look at the Riverside South condos; buyers who want pure prewar should look at the surrounding co-ops.
The apartment scale is family-sized. No studios; layouts run one- through six-bedroom plus penthouses. This is a building of substantial homes.
The amenity program is deep. Roughly 11,000 square feet — pool, spa, sports facilities, music studio, screening room, children's playroom, and a private garden.
Pets are welcome. The building includes a dedicated pet-washing room.
Condominium flexibility applies. Pied-à-terre and investment use are permitted under the declaration; 30–45 day closings are typical. Confirm specific minimum down payment and sublet terms at offer stage.
Carrying cost is material. Model common charges, property taxes, utilities, and insurance together before committing.
What to know if you’re selling
The preservation story is part of the marketing. The restored 1915 landmark, the COOKFOX design, and the historic-district setting are differentiators against pure new construction.
Pricing requires apartment-level comparable analysis. With a thin resale set, position against the most recent closings on the specific line — not building averages.
Closing timelines are condominium-fast. 30–45 days from contract to closing.
Comparable buildings
If you're considering 378 West End Avenue, also evaluate:
- 200 Amsterdam Avenue — Elkus Manfredi 2021; UWS new-development peer with prewar-influenced layouts
- The Belnord — RAMSA-led 2019–2020 conversion of a landmark courtyard building; preservation-plus-new peer
- The Apthorp — landmark Clinton & Russell courtyard building converted to condominium; West End-area prewar trophy
- 565 West End Avenue — prewar West End Avenue building converted to condominium
- 400 West End Avenue — prewar West End Avenue cooperative peer at scale
- The Greenwich Lane — FXCollaborative / Rudin 2015; downtown full-service new-development peer
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across West End Avenue — read The Roebling Team Guide to West End Avenue.
Considering a move at 378 West End Avenue?
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