701 Union StreetRecorded sales & closing prices
701 Union Street, between Fourth and Fifth avenues · Park Slope
13 recorded closings, 2007–2025. Sortable and searchable below.
- Recorded closings
- 13
- Date range
- 2007–2025
- Median $/sf
- $1,049
- Listing discount
- -1.8%
- Monthly carry/sf
- $0.70
- Price range
- $636K – $2.42M
Change in the building’s median $/sf over each window, on a floor-adjusted basis — standardized to the building’s average floor, so it reflects price rather than which floors happened to sell. This is a different method from The Roebling Index, which publishes plain medians and applies no floor adjustment; the two are not interchangeable. Floor adjustment standardizes for floor only. It does not control for condition, size, exposure, renovation or the mix of what happened to trade. (2022 marks the rate-shock inflection.) Like-for-like repeat-sale figures to follow.
The complete recorded-sale history for 701 Union Street, compiled from NYC Department of Finance transfer records, with apartment-by-apartment detail from The Roebling Research Library.
Price per square foot over time
11 sales with a known square footage, by closing date.
Premium by line
What each line’s exposure is worth — its light, outlook, and orientation — measured against the building’s average sale.
Recent closings
The building’s 10 most recent market sales.
| Date | Unit | Apartment | Price | $/sf | vs. Ask |
|---|---|---|---|---|---|
| Apr 8, 2025 | 1A | 1.5 BA · 777 sf | $815,000 | $1,049 | -8.9% |
| Oct 31, 2023 | 2A | 1 BR · 1 BA · 628 sf | $845,000 | $1,346 | +6.3% |
| Jul 15, 2020 | 1A | 1.5 BA · 811 sf | $636,406 | $785 | -29.3% |
| Jun 20, 2018 | PH | 3 BR · 2.5 BA · 1,641 sf | $2,421,500 | $1,476 | +0.9% |
| Jun 20, 2018 | PENTHOUSE | 1,641 sf | $2,421,500 | $1,476 | — |
| May 18, 2018 | 1B | 1 BR · 1 BA | $916,425 | +1.8% | |
| Sep 29, 2017 | 3A | 1 BR · 1 BA · 628 sf | $804,417 | $1,281 | +1.8% |
| Aug 10, 2017 | 4B | 1 BR · 1 BA · 603 sf | $784,052 | $1,300 | +1.8% |
| Jul 17, 2017 | 2A | 1 BR · 1 BA · 628 sf | $794,235 | $1,265 | +1.8% |
| Jun 22, 2017 | 2B | 1 BR · 1 BA · 603 sf | $763,687 | $1,266 | +1.8% |
The retrade record
Lines that have changed hands more than once in the public record — the building’s appreciation arc, apartment by apartment.
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 | ||||||
|---|---|---|---|---|---|---|
| Apr 8, 2025 | 1A | 1.5 BA | 777 | $815,000 | $1,049 | -8.9% |
| Oct 31, 2023 | 2A | 1 BR · 1 BA | 628 | $845,000 | $1,346 | +6.3% |
| Jul 15, 2020 | 1A | 1.5 BA | 811 | $636,406 | $785 | -29.3% |
| Jun 20, 2018 | PH | 3 BR · 2.5 BA | 1,641 | $2,421,500 | $1,476 | +0.9% |
| Jun 20, 2018 | PENTHOUSE | 1,641 | $2,421,500 | $1,476 | — | |
| May 18, 2018 | 1B | 1 BR · 1 BA | — | $916,425 | — | +1.8% |
| Sep 29, 2017 | 3A | 1 BR · 1 BA | 628 | $804,417 | $1,281 | +1.8% |
| Aug 10, 2017 | 4B | 1 BR · 1 BA | 603 | $784,052 | $1,300 | +1.8% |
| Jul 17, 2017 | 2A | 1 BR · 1 BA | 628 | $794,235 | $1,265 | +1.8% |
| Jun 22, 2017 | 2B | 1 BR · 1 BA | 603 | $763,687 | $1,266 | +1.8% |
| Jun 15, 2017 | 3B | 1 BR · 1 BA | 603 | $773,870 | $1,283 | +1.8% |
| Jun 14, 2017 | 4A | 1 BR · 1 BA | 628 | $814,598 | $1,297 | +1.8% |
| Jan 30, 2007 | —Sponsor Sale | — | $1,380,000 | — | — |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00952-7507). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. 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.
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