125 West 21st Street
125 West 21st Street, New York, NY 10011
Chelsea
BBL 1007977501 · BIN 1087608
- Year built
- 2006
- Type
- Condominium
Every recorded sale at this building, 2008–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,635
- Listing discount
- 2.8%
- Recorded sales
- 125
- On record
- 2008–2025
The Indigo is one of the buildings that defined Chelsea's mid-2000s condominium wave — the moment when a neighborhood of pre-war lofts and walk-ups acquired a generation of purpose-built, full-service condominiums. Completed in 2006 on West 21st Street between Sixth and Seventh Avenues, it is a thirteen-story, 52-residence building wrapped in a zinc-and-aluminum skin and stepped with terraces, a contemporary counterpoint to the masonry block around it. It sits in the dead center of Chelsea, equidistant from the gallery district to the west, the Flatiron retail core to the east, and the F/M and 1 trains a short walk in either direction.
For buyers, The Indigo offers what the neighborhood's loft conversions often can't: ground-up systems, a true full-service operation, and a meaningful share of homes with private outdoor space — all under condominium ownership, with its financing flexibility and absence of a co-op admissions board.
Architecture and unit composition
The façade is the building's calling card: zinc and aluminum panels and large casement windows, massed with setbacks that yield private terraces on the upper floors. Inside, the 52 residences run from one to three bedrooms. Sponsor finishes were calibrated to the period's high end — cherry hardwood floors, Poggenpohl cabinetry, Viking stainless appliances, vented washer/dryers in residence, and bathrooms with radiant-heated floors. The terraced upper homes and the penthouses are the building's most sought lines; lower-floor residences trade on the building's services and Chelsea location.
Building operations
The Indigo runs as a full-service condominium. A 24-hour doorman staffs the attended lobby and a live-in superintendent manages the building day to day. The amenity program is anchored by a landscaped roof deck with skyline views and a separate outdoor lounge area, with a bike room and private storage available to residents. Washer/dryers are permitted and were delivered in the homes, and the condominium is pet-friendly. As a condominium, financing is flexible and purchases clear through a right-of-first-refusal rather than a board package and interview.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $17,837/yr
- Per unit / month range
- $0 – $29
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
- Notable fees
- Min Down Payment: 10%
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 |
|---|---|---|---|---|---|
| Nov 24, 2025 | 12A | 2 BR · 2 BA · 1,361 sf | $2,149,000 | $1,579/sf | -0.0% |
| Oct 1, 2025 | 4C | 1 BA · 605 sf | $945,000 | $1,562/sf | -3.1% |
| Jun 8, 2023 | 6C | 1 BA · 605 sf | $982,999 | $1,625/sf | -5.0% |
| Apr 4, 2023 | 2C | 1 BA · 605 sf | $935,000 | $1,545/sf | -1.6% |
| Mar 16, 2023 | 2E | 2 BR · 2 BA · 1,159 sf | $1,825,000 | $1,575/sf | -1.1% |
| Sep 26, 2022 | 2D | 1 BR · 1.5 BA · 961 sf | $1,500,000 | $1,561/sf | -6.3% |
| Sep 19, 2022 | 7C | 1 BR · 1 BA · 605 sf | $999,000 | $1,651/sf | -4.4% |
| Jul 26, 2022 | 5D | 1 BR · 1.5 BA · 973 sf | $1,550,000 | $1,593/sf | -2.8% |
Market read. Most recent trades (2025) cleared a median $1,635/sf across 2 sales. Median listing discount 2.8% 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 1-00797-7501) 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; square footage from recorded condo declarations and offering plans.
What to know if you’re buying
As a condominium, The Indigo offers the lighter purchase path: a right-of-first-refusal in place of a co-op board, flexible financing, and the customary openness to pied-à-terre, trust, LLC, and investment ownership. Subletting is freer than at a Chelsea co-op. Value here is driven by the specifics — which exposure, how much terrace, what floor — layered on the building-level draws of full-time staffing, the roof deck, and the bike and storage rooms. We help buyers read the offering plan and financials, weigh common charges and taxes, and benchmark a given line against Chelsea's boutique-condominium comparable set.
What to know if you’re selling
The selling case is the combination of a distinctive contemporary building, genuine full-service operation, and outdoor space on a large share of homes — all rarer in Chelsea's predominantly pre-war stock than buyers assume. Closing mechanics are condominium-standard: a right-of-first-refusal and a faster, more predictable timeline than a co-op process, which itself appeals to the financing- and flexibility-minded buyer. With turnover light, a well-positioned terraced or high-floor home benefits from scarcity within the building; pricing belongs against the boutique full-service condominium set rather than the broader loft-conversion market.
Comparable buildings
If you're considering The Indigo, also evaluate nearby Chelsea condominium inventory:
- 140 West 22nd Street — pre-war loft-conversion condominium a block north
- 153 West 21st Street — contemporary Chelsea condominium on the same block
- 245 Seventh Avenue — boutique Chelsea condominium nearby
- 252 Seventh Avenue — full-service Chelsea condominium
- 50 West 15th Street — Flatiron-border condominium to the south
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Chelsea — read The Roebling Team Guide to Chelsea.
Considering a move at The Indigo?
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 The Indigo 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.