49 East 21st Street
49 East 21st Street, New York, NY 10010
Flatiron
BBL 1008507506 · BIN 1016251
- Year built
- 1913
- Type
- Condominium
- Landmark
- No
Every recorded sale at this building, 2004–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,621
- Listing discount
- 2.6%
- Recorded sales
- 128
- On record
- 2004–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 49 East 21st Street 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.
49 East 21st Street is a 1913 pre-war loft building that converted to condominium ownership — an uncommon and desirable combination. Most of the pre-war loft stock on the Flatiron–Gramercy line is held as cooperative, so a condominium in an authentic century-old loft building gives buyers something rare: the soaring ceilings and oversized windows of the original commercial architecture, with the financing flexibility and ownership latitude of condominium title.
The building sits on a prime block between Park Avenue South and Broadway, steps from Gramercy Park, Madison Square Park, and Union Square, and within a short walk of some of the city's most celebrated restaurants — the kind of address where the surrounding dining, retail, and transit do as much for daily life as the apartment itself. With 43 loft residences, it is intimate, and the homes are characterful rather than uniform, each shaped by the original loft volumes and how owners have renovated them.
For buyers, the appeal is specific: authentic pre-war loft space — beamed ceilings, big light, flexible layouts — in a condominium, in one of downtown's most connected neighborhoods.
Architecture and residences
The building is a 12-story masonry loft structure in the pre-war commercial idiom — a solid facade with a regular grid of large industrial windows, the kind of building that gave the Flatiron and lower Park Avenue South their distinctive texture. Its scale and materials place it firmly among the neighborhood's converted-loft stock.
Inside, the residences are true lofts. Ceilings run from roughly 11 to 13 feet with original beams, windows are oversized, and wide-plank African oak floors and chef's kitchens with high-end appliances feature in the renovated homes. The 43 residences are generally configured as one- to two-bedrooms, ranging from roughly 1,280 to over 1,500 square feet, with many offering flexible bonus space that buyers use as a home office, den, or nursery. The combination of ceiling height and flexible square footage is the building's signature — and where its value is concentrated.
Building operations and lifestyle
49 East 21st Street operates as a full-service condominium with a doorman, a rooftop terrace, and private storage — a focused package appropriate to a boutique pre-war loft building, where the residences themselves are the principal draw.
The location is a defining asset. Gramercy Park's gated green is a short walk east, Madison Square Park and Union Square are minutes away, and the immediate blocks include some of New York's best-known dining destinations. Multiple subway lines converge nearby — the 6 at 23rd Street and the 4, 5, 6, L, N, Q, R, and W at Union Square — making the building one of the most transit-connected addresses on the Flatiron–Gramercy line. For buyers who want pre-war character without sacrificing convenience or condominium flexibility, the position is hard to match.
Ownership and what buyers should know
This is a condominium, which is the building's structural advantage in a loft-heavy, co-op-dominated corridor. Financing is not subject to co-op-style caps; there is no admissions board, so a purchase clears a condominium's lighter right-of-first-refusal rather than a board package and interview; and pied-à-terre, trust, LLC, and investor purchases are customary. Subletting and resale are materially freer than at a cooperative. Focus diligence on the apartment itself — ceiling height, exposure, window line, and the scope and quality of any prior renovation — because that is where value lives in a pre-war loft. We help buyers read the condominium documents, benchmark the loft pricing, and structure the deal.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $38,892/yr
- Per unit / month range
- $0 – $75
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City record last verified September 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →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.
How to read this, and where it comes from
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. City record last verified September 2026.
Management & transfer contacts
- Flip tax
- Transfer fee 0.25%-1.5% based on original purchase (seller)
- Sublet policy
- Allowed immediately; leasing fee $1,000/yr; pet fee $700/yr
- Notable fees
- Condo. Buyer working capital contribution = 1 month common charges; app $200; credit $45; move-in $1,000 fee + $2,000 deposit; pets on approval, W/D allowed
Recent sales
Recent closings at this building, curated by The Roebling Team research desk. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Jul 22, 2026 | 2C | 2 BR · 2 BA · 1,461 sf | $1,950,000 | $1,335/sf | -16.1% |
| Jun 29, 2026 | 11B | 2 BR · 2 BA · 1,308 sf | $2,100,000 | $1,606/sf | -10.4% |
| May 29, 2026 | 9A | 2 BR · 2 BA · 1,375 sf | $2,895,000 | $2,105/sf | +0.0% |
| May 21, 2026 | 10C | 3 BR · 2 BA · 1,461 sf | $2,775,000 | $1,899/sf | -5.9% |
| Apr 30, 2026 | 2B | 1 BR · 2 BA · 1,350 sf | $1,725,000 | $1,278/sf | -3.9% |
| Jan 16, 2024 | 4A | 2 BR · 2 BA · 1,375 sf | $2,610,000 | $1,898/sf | -3.2% |
| May 25, 2023 | 4D | 2 BR · 2 BA · 1,282 sf | $2,250,000 | $1,755/sf | off-mkt |
| Aug 1, 2022 | 2D | 2 BR · 2 BA · 1,250 sf | $1,975,000 | $1,580/sf | -10.0% |
Market read. Most recent trades (2026) cleared a median $1,621/sf across 5 sales. Median listing discount 2.6% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
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 1-00850-7506) 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 selling
Lead with the rare combination: authentic pre-war loft space — beamed 11-to-13-foot ceilings, oversized windows, flexible layouts — in a condominium. That pairing differentiates a resale here from both the co-op lofts nearby and the glass new-construction condominiums in the area. Benchmark to comparable pre-war loft condominiums on the Flatiron–Gramercy line, weighting ceiling height and renovation quality. Closing mechanics are condominium-standard — a right-of-first-refusal rather than a board process — a faster, more predictable path that itself appeals to the flexibility-minded buyer this building attracts. Staging that reads the home as a true loft, and a precise comparable set, position a resale to its strength.
Comparable buildings
If you're considering 49 East 21st Street, also evaluate nearby Flatiron and Gramercy loft and condominium inventory:
- 21 East 22nd Street — Flatiron loft building nearby
- 23 East 22nd Street — Flatiron building nearby
- 15 East 26th Street — Madison Square loft building
- 150 East 23rd Street — ODA-designed Gramercy condominium
- 200 East 20th Street — new-construction Gramercy condominium
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
Considering a move at 49 East 21st Street?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.