- Year built
- 1891
- Type
- Cooperative
- Units
- 10
- Floors
- 4
- Landmark
- Designated
- Pets
- Pet-friendly per brokerage records — verify current house rules
18 West 87th Street is the Upper West Side's classic entry product done in its classic setting: ten compact co-op apartments inside an 1892 Renaissance Revival rowhouse, on a landmarked park block a half block from Central Park's 86th Street and 90th Street entrances. City landmark records document the house as part of the 1891–92 rowhouse development of the block — designed by John H. Friend for the developer James R. Breen — and the Upper West Side/Central Park West Historic District has protected the streetscape since 1990. The brownstone-block texture that buyers pay a premium for on these streets is, here, structural and permanent.
The ownership history is well documented in The Roebling Research Library: the cooperative offering plan, first offered in August 1988 by sponsor 18 West 87th Street Associates, converted the house into 11 apartments across 1,000 shares — an eviction-format plan typical of the late-1980s conversion wave. The plan's special-risks pages are a period piece of small-co-op economics: a modest balloon mortgage, no working-capital fund, and self-management by the board of directors. Nearly four decades on, the building still runs on the lean, neighbor-managed model the plan set up, and a top-floor combination has brought the count to ten units per city records.
For buyers, the proposition is simple and scarce: a park-block address in the school- and museum-rich upper 80s — the American Museum of Natural History is five blocks south — at the lowest price of entry the block offers. For sellers, the same scarcity works in reverse: rowhouse co-op units on the 87th Street park block come to market infrequently, and the buyer pool is consistent.
Architecture and unit composition
The house is a four-story-and-basement brick rowhouse on a 20-foot lot, built as one of a speculative row in the early 1890s and carrying Renaissance Revival detail at the facade. The stoop was removed in an earlier alteration cycle and entry now runs through the basement level — a common modification in converted rows, and one that adds a usable lower level. Within the historic district, facade and rooftop work runs through Landmarks review.
Inside, the conversion divided the house into compact units — predominantly studios and one-bedrooms of rowhouse proportions, roughly two to three per floor, with the combined top-floor unit as the largest home in the building. Original-fabric details vary by unit after decades of individual renovation; rear units face the block interior's gardens, front units face the landmarked streetwall. At roughly 6,350 square feet of building area across ten units, this is intimate-scale ownership — every apartment is, functionally, a piece of a single house.
Building operations
This is a self-service cooperative in the fullest sense: no doorman, no elevator, no staff, and a governance model that began — per the offering plan on file — with the board managing the building directly. Maintenance is correspondingly low for the location, and buyers should weigh that against the realities of walk-up living and neighbor-run operations: capital decisions, repairs, and approvals all run through a board of ten shareholders. Verify current management arrangements, reserve position, and any underlying mortgage terms during diligence; we review the financials with clients against the conversion-era baseline.
Local Law 97
This building is below the 25,000 sq ft threshold at which LL97 emissions caps apply. No regulatory capital pressure from this law specifically, current or 2030.
See full Local Law 97 analysis →Recent sales
Recent transfers at this building, sourced from NYC Department of Finance records. Apartment-level detail (line, condition, asking-price context) verified upon consultation request.
| Date | Unit | Price |
|---|---|---|
| May 22, 2025 | 2A | $732,000 |
| Sep 7, 2023 | 2B | $750,000 |
| May 12, 2021 | 3A | $640,000 |
| Aug 12, 2019 | 4B | $610,000 |
| Mar 18, 2010 | 5 AB | $1,200,000 |
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01200-0142) 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.
What to know if you’re buying
Small co-op diligence is the whole game. Ten shareholders share one roof, one boiler, and one 1892 facade under landmark jurisdiction. Your attorney should review reserves, the underlying mortgage, recent capital work, and the management arrangement closely — the offering plan on file flagged self-management and thin reserves at conversion, and the current posture should be verified, not assumed.
Underwrite the walk-up honestly. Fourth-floor units carry the best light and the most stairs; the price structure reflects it. Buy the floor you will still want in ten years.
Expect informal but real board review. Small buildings rarely publish policy frameworks; financing limits, sublet rules, and pet terms live with the board. Run the Co-op Board Qualification Calculator and let us confirm terms before you offer.
Renovation runs through two gatekeepers. Interior work needs board consent; anything touching the facade, windows, or roof also involves Landmarks. Budget timeline accordingly — and run the Renovation Cost Calculator if you are buying an estate-condition unit.
The block is the amenity. Central Park a half block east, the Natural History museum corridor to the south, the B/C at 86th Street around the corner. What the building lacks in staff it returns in location and carry.
What to know if you’re selling
Market the block, then the house. Landmarked park-block streetscape, 1892 fabric, half a block to the park — the structural facts do the work. Listing records that lead with the location's permanence outperform generic studio/one-bedroom marketing.
Price to the entry-buyer's math. Your buyer is comparing total monthly carry against avenue co-ops and rentals. Low maintenance is the building's competitive weapon — state it plainly and run the True Monthly Carrying Cost Calculator framing for buyers.
Have the small-building answers ready. Reserves, the mortgage, recent capital work, and board process are the first questions every buyer's attorney will ask of a ten-unit co-op. Clean documentation up front protects the contract price; we prepare it with sellers before listing.
Comparable buildings
If you're considering 18 West 87th Street, also evaluate:
- 35 West 90th Street — park-block co-op three streets north; the closest like-for-like positioning
- 41 West 96th Street — park-block co-op in the upper 90s; same proposition at the next price rung north
- 257 Central Park West — full-service pre-war on the avenue at 86th Street; the step-up in service and scale
- 241 Central Park West — avenue pre-war co-op two blocks south; the elevator-building alternative
- 20 West 87th Street — immediate rowhouse neighbor in the same landmarked row
- 8 West 87th Street — same block, same 1890s rowhouse stock closer to the park
- 175 West 93rd Street — larger pre-war co-op nearby; the bigger-building alternative at a similar price point
The Roebling Team at 18 West 87th Street
The Roebling Team at Compass works the Upper West Side park blocks and the Central Park West corridor as a core practice area. We publish this building profile because brownstone-co-op buyers and sellers deserve building-specific intelligence — conversion documentation, small-co-op diligence guidance, and park-block comparables — not generic neighborhood commentary.
If you're considering a transaction at 18 West 87th Street, a 30-minute consultation is the right starting point.