Chadwin House (140 Seventh Avenue)
140 Seventh Avenue, New York, NY 10011
Chelsea
BBL 1007687502 · BIN 1068033
- Year built
- 1962
- Type
- Condominium
- Units
- 109
- Floors
- 7
- Landmark
- No
- Pets
- Permitted with approval per listing records
- Subletting
- Permitted under the condominium framework (one-year minimum per listing records)
- Pied-à-terre
- Allowed
Every recorded sale at this building, 2003–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,366
- Listing discount
- 2.4%
- Recorded sales
- 108
- On record
- 2003–2026
Chadwin House is a full-service Chelsea condominium that pairs condominium flexibility with a rare-for-the-price amenity set. A 1962 mid-century white-brick building occupying a full Seventh Avenue blockfront between West 18th and West 19th Streets, converted to condominium ownership in 1985, it delivers a 24-hour doorman, a live-in superintendent, and an on-site parking garage — a combination that is uncommon at its price tier — while marketing consistently emphasizes low common charges and taxes. For buyers who want deeded ownership, condominium flexibility, and staff in the heart of Chelsea without paying new-development pricing, it is a structural value.
The condominium structure is the practical draw. As a condo, the building accommodates pieds-à-terre, investors, and subletting under the declaration far more readily than the co-op stock that dominates this stretch of Chelsea — which is why brokerage records reflect a heavier owner-investor mix here than at a comparable co-op. That flexibility, combined with the doorman-and-garage service package and the low carrying costs, gives the building an unusually wide buyer pool for its tier.
Architecturally the building is honest mid-century work by Horace Ginsbern & Associates — a firm best known for Art Deco apartment houses on the Bronx's Grand Concourse — rendered here as a low, banded white-brick blockfront. It faces a low utility structure across Seventh Avenue that keeps the block open and light, and it sits in the middle of the Chelsea gallery district, a block from the 1 train at 18th Street and within easy reach of the neighborhood's dining and cultural core. It is not an architectural statement; it is a well-located, well-run, amenity-complete condominium in one of Manhattan's most desirable neighborhoods.
Architecture and unit composition
Chadwin House runs seven stories of white brick with pronounced horizontal banding across a full Seventh Avenue blockfront. The inventory is predominantly studios and one-bedrooms, with a layer of larger and combined apartments. Layouts are 1960s-practical — efficient room shapes, defined foyers, and real closet volume — and they renovate cleanly. Exposures split between the open Seventh Avenue frontage and the quieter rear; the avenue-facing lines carry the building's light, aided by the low structure across the street. The building runs on through-wall or window air conditioning rather than central systems; buyers pricing renovations should set HVAC expectations accordingly.
Building operations
This is a staffed, full-service condominium: a 24-hour doorman, a live-in superintendent, an elevator, central laundry, private storage, and an on-site parking garage. Marketing consistently emphasizes the building's low common charges and taxes relative to its service level — a genuine carrying-cost advantage worth confirming against current financials during diligence. The condominium declaration, by-laws, and current house rules are on file in The Roebling Research Library and available to clients during due diligence.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $22,807/yr
- Per unit / month range
- $0 – $17
Facade safety — Local Law 11
The latest available FISP filing classified the facade as Safe — no repairs were required at that inspection. Facade inspections run on a fixed five-year cycle; future inspection, repair, and any assessment decisions remain building-specific.
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 →Management & transfer contacts
- Sublet policy
- Allowed; one-year period only
Recent sales
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 |
|---|---|---|---|---|---|
| Jun 23, 2026 | 3C | 620 sf | $845,000 | $1,363/sf | off-mkt |
| Jun 19, 2026 | 2K | 1 BR · 1 BA · 623 sf | $725,000 | $1,164/sf | off-mkt |
| Jun 8, 2026 | 4M | 2 BR · 1 BA · 787 sf | $1,110,000 | $1,410/sf | -1.3% |
| Jan 27, 2026 | 4L | 2 BR · 2 BA · 1,114 sf | $1,530,000 | $1,373/sf | -4.4% |
| Aug 21, 2025 | 2J | 1 BR · 645 sf | $850,000 | $1,318/sf | off-mkt |
| Jun 30, 2025 | 5D | 760 sf | $650,000 | $855/sf | off-mkt |
| Jan 15, 2025 | 5A | 1 BA · 500 sf | $576,000 | $1,152/sf | -7.8% |
| Nov 21, 2024 | 5R | 1 BA · 580 sf | $650,000 | $1,121/sf | +4.0% |
Market read. Most recent trades (2026) cleared a median $1,366/sf across 4 sales. Median listing discount 2.4% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
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 1-00768-7502) 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
Condominium flexibility is real. Deeded ownership, pieds-à-terre, investor use, and subletting under the declaration — with the doorman-and-garage service package — is the core proposition. If you need any structure a Chelsea co-op resists, this building belongs on your list.
The carrying-cost story is the differentiator. Low common charges and taxes at this service level is the building's headline. Confirm the current figures against the financials before you underwrite.
The garage is a genuine amenity. On-site parking in the heart of Chelsea is scarce. If a space matters to you, confirm availability and terms early.
Prioritize the avenue-facing light. The low structure across Seventh Avenue keeps the frontage open; avenue lines carry the building's better light. Walk the difference in person.
Mansion tax may apply on larger units. Run pricing through the Mansion Tax Calculator where the $1M threshold is in play.
What to know if you’re selling
Market the flexibility and the carry. Condominium structure plus low common charges plus doorman and garage is a stronger combined story than any single feature. Lead with all three.
Reach the investor pool. The condo framework and rental-friendly declaration widen the buyer set beyond owner-occupants; marketing that names the flexibility reaches buyers a co-op listing would miss.
Condition drives the spread. In a building where exposures vary modestly, renovated-versus-original is the pricing axis. Price original-condition units to the renovation math — the Renovation Cost Calculator frames it for buyers.
Comparable buildings
If you're considering Chadwin House, also evaluate:
- 160 Seventh Avenue — Chelsea condominium on the same avenue nearby
- 100 Seventh Avenue — full-service Chelsea building a few blocks south
- 245 Seventh Avenue — Chelsea condominium on the avenue's northern blocks
- 100 West 18th Street — Chelsea building on the same cross-street
- 155 West 18th Street — Chelsea condominium nearby
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Chelsea — read The Roebling Team Guide to Chelsea.
Considering a move at Chadwin House?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at Chadwin House would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.