- Year built
- 1880
- Type
- Condominium — 38 residential units per the offering plan on file
- Floors
- 4
- Landmark
- No
- Amenities
- Elevator in the main (combined) building, fitness room, central laundry, common garden/backyard, mailroom, bike rack, and storage by waitlist per market records; a management/security office was built into the conversion per the offering plan
- Pets
- Permitted per market records
Every recorded sale at this building, 2021–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Recorded sales
- 10
- On record
- 2021–2025
West 131 Plaza is one of the quiet products of Harlem's early-1990s rebuilding: six rowhouse-era buildings on the block between Fifth and Lenox, substantially rehabilitated with city financing behind them and converted to a 38-unit condominium under a plan first offered in January 1992 — years before Central Harlem's market cycle made such conversions routine. The offering plan and by-laws are on file in The Roebling Research Library, and they document an unusually legible structure: the four five-story buildings at 49–55 West 131st were merged into one elevator building of thirty two-bedrooms and four one-bedrooms, while the two four-story houses at 45 and 47 West 131st were each rebuilt as a pair of three-bedroom duplexes with a designated rear yard behind them.
That makes 45 West 131st Street itself a rarity within the rarity: a townhouse-scale condominium building of exactly two homes — three-bedroom duplexes with yard rights — inside a 38-unit condominium that supplies the elevator building's services (laundry, fitness room, common garden) next door. For buyers, it is the Harlem brownstone-duplex lifestyle with condo title, shared capital costs, and common charges that market records consistently describe as low. The block sits one north of Astor Row, the landmarked 1880s porch-fronted houses on West 130th Street, in the heart of the corridor between Marcus Garvey Park and the 135th Street express stops.
The conversion's economics also explain the building's market position. Schedule A pricing in the 1992 plan ran in the $50,000s–$80,000s per unit, with J-51 tax benefits underwriting the early years; three decades later the same units trade at roughly ten times those numbers and the benefit schedules have largely expired. What endures is the structure: condo mechanics, a small and simple physical plant, and a unit mix dominated by genuine two- and three-bedroom family layouts.
Architecture and unit composition
The complex reads as a unified rowhouse front on the north side of West 131st Street — masonry facades of the circa-1880 building generation per city records, with stoops, platform steps, and a low stone wall noted in the conversion documents. Behind the facades, the rehabilitation reorganized everything: the combined building (49–55) stacks two-bedroom front and rear lines across five floors with an elevator and the condominium's shared spaces; 45 and 47 each hold a lower duplex and an upper duplex, all three-bedrooms, with the roughly 1,480-square-foot rear yard designated to those four homes per the offering plan. Market records describe large rooms and high ceilings in the duplexes — consistent with rowhouse floor plates — and listing records for the duplex units have described them as condominiums "in a townhouse," which is structurally accurate.
Building operations
This is a self-sufficient, low-overhead condominium: no doorman, voice intercom, an elevator and the amenity spaces (laundry, fitness room, mailroom, bike storage) concentrated in the main building, common garden and yard areas, and a management/security office built into the conversion. The original budget documents on file show modest service contracts — elevator, exterminating, boiler, compactor — which is the cost profile the building still trades on: market records consistently flag low common charges. The condominium's laundry has produced ancillary income since a conversion-era vendor agreement documented in the plan. Buyers' attorneys should review the by-laws on file for right-of-first-refusal mechanics and current house rules.
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 closings 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 |
|---|---|---|
| Nov 20, 2025 | — | $715,000 |
| Dec 2, 2024 | E-2 | $651,625 |
| Jan 4, 2024 | G-1 | $680,000 |
| Nov 3, 2023 | B-5 | $625,000 |
| Oct 16, 2023 | — | $1,100,000 |
| Jul 18, 2022 | ASTO1 | $1,330,000 |
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 1-01729-7501) 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
Understand which building you're buying. 45 West 131st is one of the two duplex townhouses — two three-bedroom homes with designated rear-yard rights — while the condominium's elevator, laundry, and fitness room live in the combined building at 49–55. The amenity walk is next door, not downstairs. The offering plan on file maps all of it; we review it with clients before offers.
Condo mechanics, Harlem pricing. No board interview, no co-op-style financial disclosure, and a unit mix dominated by real two- and three-bedroom layouts at price points well below the neighborhood's new-development condos. For first-time buyers and families, this is the structural appeal.
Confirm the tax line per unit. The conversion's J-51 benefits date to the early 1990s and have largely run off; current taxes vary by unit and any abatement assumptions in listings should be verified against the Department of Finance record, not taken on faith.
Budget for a small building's realities. Thirty-eight units share the capital plant — roofs across multiple structures, one elevator, conversion-era systems now three decades old. Review the financials and reserve posture; in lean-overhead buildings the question is always whether reserves match the capital cycle. Run the True Monthly Carrying Cost Calculator on the specific unit.
Walk the corridor. Astor Row's landmarked porches one block south, Marcus Garvey Park three blocks southeast, the 2/3 express at 135th, Metro-North at 125th, and the Whole Foods–anchored 125th Street retail spine — the location case is concrete. Test it on foot.
What to know if you’re selling
Sell the structure, not just the unit. Duplex three-bedrooms with yard rights in a two-unit condo building are close to unrepeatable inventory in this corridor — market them against brownstone-duplex rentals and small-condo comparables, not against the complex's two-bedroom trades.
Document the low-carry advantage. Buyers cross-shopping newer Harlem condos see higher common charges for amenity programs they may not use. State the monthly math plainly; it is this building's most persuasive line item.
Be ready for diligence on an early-1990s conversion. Buyers' attorneys will ask about the by-laws, reserves, and the condition of conversion-era systems. We provide the offering plan and by-laws from the Research Library to serious buyers' counsel — pre-empting the questions shortens contract timelines. Where condition is dated, run the Renovation Cost Calculator against your pricing strategy.
Comparable buildings
If you're considering 45 West 131st Street, also evaluate:
- 1485 Fifth Avenue — the large full-amenity Harlem condo nearby; the scale-and-services alternative
- 2101 Eighth Avenue — Harlem condominium stock on the western corridor
- 100 West 119th Street — South Harlem condo alternative below 125th Street
- 88 Morningside Avenue — the park-facing South Harlem condo comparison
- Graham Court — the corridor's landmark pre-war courtyard building; the architectural step-up
- The Lenox (380 Lenox Avenue) — the 2000s-era boutique condo two blocks south; the newer-construction comparison
- Astor Row (West 130th Street) — the landmarked houses one block south; the whole-house alternative that frames this block's character
The Roebling Team at 45 West 131st Street (West 131 Plaza Condominium)
The Roebling Team at Compass works Harlem — Astor Row to Strivers' Row, the Fifth and Lenox Avenue corridors, and the neighborhood's condo and brownstone stock — as a growing practice area. We publish this building profile because Harlem buyers and sellers deserve building-specific intelligence — conversion documentation, configuration mapping, and corridor comparables — not generic neighborhood commentary.
If you're considering a transaction at 45 West 131st Street, a 30-minute consultation is the right starting point.