29 West 21st Street (Iron Lofts)Recorded sales & closing prices
29 West 21st Street, New York, NY 10010
7 recorded closings, 2024–2026. Sortable and searchable below.
- Recorded closings
- 7
- Date range
- 2024–2026
- Median $/sf
- $1,549
- Listing discount
- 4.7%
- Monthly carry/sf
- $2.70
- Price range
- $2.85M – $4.3M
Change in the building’s median $/sf over each window, from the raw yearly medians — too few standardized single-line units here to adjust to an average-floor basis, so which apartments happened to trade moves these alongside price. (2022 marks the rate-shock inflection.) Like-for-like repeat-sale figures to follow.
Iron Lofts prices as boutique Flatiron loft product — full-floor and duplex residences valued per square foot, with the premium concentrated in the upper floors and the duplex configuration at the top of the stack. The comparable set is the small conversions on the Flatiron side streets between Fifth and Sixth Avenues, not the larger amenitized condominiums on Fifth Avenue and Park Avenue South, whose operating economics and buyer pools are different.
Two things shape underwriting here. The first is the six-unit denominator: buyers should look at the budget and reserves rather than at the monthly common charge in isolation. The second is that the building has essentially no resale history — every residence was a first sale between 2024 and 2026 — so pricing depends on line-specific and floor-specific analysis against neighboring buildings rather than on an internal building average.
Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The complete recorded-sale history for Iron Lofts, per listing and brokerage records, compiled from NYC Department of Finance transfer records and verified listing data, then enriched apartment-by-apartment by The Roebling Team research desk. Across sales with a public asking price, the building carries a median listing discount of 4.7% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.
Price per square foot over time
6 sales with a known square footage, by closing date.
Recent closings
The building’s 6 most recent market sales.
| Date | Unit | Apartment | Price | $/sf | vs. Ask |
|---|---|---|---|---|---|
| Feb 25, 2026 | 5 | 2 BR · 3 BA · 2,082 sf | $3,225,000 | $1,549 | -2.1% |
| Jun 26, 2025 | 2 | 2 BR · 3 BA · 2,082 sf | $2,850,000 | $1,369 | -4.8% |
| Sep 24, 2024 | PH | 3 BR · 3.5 BA · 2,797 sf | $4,300,000 | $1,537 | -13.9% |
| Jun 6, 2024 | 3 | 2 BR · 3 BA · 2,082 sf | $3,195,000 | $1,535 | +0.0% |
| Apr 19, 2024 | MAIS | 2 BR · 2.5 BA · 2,584 sf | $2,850,000 | $1,103 | -4.8% |
| Apr 16, 2024 | 4 | 2 BR · 3 BA · 2,082 sf | $3,100,000 | $1,489 | -4.5% |
Every recorded sale
Sort any column; filter by unit or keyword. Prices are the recorded transfer amount at the NYC Department of Finance. Every sale sits in one of three states: counted in the building’s medians and trend; shown but excluded as a non-arms-length or nominal transfer; or shown and ⚑ flagged for review — a possible duplicate filing or an extreme $/sf outlier, held out of the statistics pending manual verification rather than allowed to move them.
| Apartment | ||||||
|---|---|---|---|---|---|---|
| Feb 25, 2026 | 5 | 2 BR · 3 BA | 2,082 | $3,225,000 | $1,549 | -2.1% |
| Jun 26, 2025 | 2 | 2 BR · 3 BA | 2,082 | $2,850,000 | $1,369 | -4.8% |
| Feb 28, 2025 | COM | non-market transfer (excluded from $/sf & trends) | 462 | $250,000 | — | — |
| Sep 24, 2024 | PH | 3 BR · 3.5 BA | 2,797 | $4,300,000 | $1,537 | -13.9% |
| Jun 6, 2024 | 3 | 2 BR · 3 BA | 2,082 | $3,195,000 | $1,535 | +0.0% |
| Apr 19, 2024 | MAIS | 2 BR · 2.5 BA | 2,584 | $2,850,000 | $1,103 | -4.8% |
| Apr 16, 2024 | 4 | 2 BR · 3 BA | 2,082 | $3,100,000 | $1,489 | -4.5% |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-00823-7508) 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. Storage, parking, and commercial units are excluded from all figures. Floor- and line-level $/sf are time-controlled (each sale measured against the building’s going rate at the time of sale) and expressed at today’s pricing, so they isolate the floor or line premium rather than blend two decades of market movement.
Put this data to work.
Know what’s fair before you offer — we’ll show you where each line trades, the building’s discount-to-ask pattern, and where the value sits right now.
Price to the building’s real trajectory, not a guess — we’ll position your line against its true comps to maximize the outcome.