Back to Park Union, per listing records building profile
910 Union Street (Park Union)Recorded sales & closing prices
910 Union Street, Brooklyn, NY 11215
28 recorded closings, 2013–2026. Sortable and searchable below.
- Recorded closings
- 28
- Date range
- 2013–2026
- Median $/sf
- $1,884
- Listing discount
- 0.0%
- Monthly carry/sf
- $1.58
- Price range
- $784K – $2.83M
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.
Compare 910 Union with Park Slope park-block and Grand Army Plaza product using verified apartment areas: the large conversion at 1 Prospect Park West, the plaza's postwar co-ops, and the newer condominiums on the Prospect Heights side. Resales have been steady since the 2013 sellout, a handful a year at most. Compare the upper-floor A and B lines with second-floor units and 1B using verified interior areas, condition, exposure and dated transactions; the tax-roll area ranges do not establish a price hierarchy. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The complete recorded-sale history for Park Union, per listing records, compiled from NYC Department of Finance transfer records, with apartment-by-apartment detail from The Roebling Research Library.
Price per square foot over time
15 sales with a known square footage, by closing date.
The vertical premium
Time-adjusted price per square foot by floor group, against the recent median. These figures reflect the apartments that traded and do not isolate the value of light, views, layout or condition.
Premium by line
Time-adjusted price per square foot by line, against the recent median. Line groups are not floor-controlled and do not isolate the value of light, outlook, layout or condition.
Recent closings
The building’s 10 most recent market sales.
| Date | Unit | Apartment | Price | $/sf | vs. Ask |
|---|---|---|---|---|---|
| Jun 5, 2026 | 4B | 3 BR · 2.5 BA · 1,535 sf | $2,815,000 | $1,834 | +8.3% |
| May 11, 2026 | 5B | 3 BR · 2.5 BA · 1,525 sf | $2,825,000 | $1,852 | +9.7% |
| Dec 10, 2025 | 1B | 1 BR · 1 BA · 786 sf | $930,000 | $1,183 | -2.1% |
| Aug 19, 2025 | 3B | 3 BR · 2.5 BA · 1,535 sf | $2,575,000 | $1,678 | -2.8% |
| May 15, 2023 | 4A | 3 BR · 2.5 BA · 1,515 sf | $2,510,000 | $1,657 | +0.0% |
| May 16, 2022 | 7A | 3 BR · 1.5 BA · 1,428 sf | $2,400,000 | $1,681 | -2.0% |
| Oct 25, 2021 | 1A | 3 BR · 2.5 BA · 1,904 sf | $2,612,500 | $1,372 | -6.5% |
| Sep 9, 2021 | 7B | 3 BR · 2 BA · 1,505 sf | $2,300,000 | $1,528 | — |
| Feb 19, 2020 | 5B | 3 BR · 2.5 BA · 1,535 sf | $2,100,000 | $1,368 | -4.3% |
| Dec 16, 2019 | 2A | 2 BR · 2 BA · 1,050 sf | $1,425,000 | $1,357 | +0.0% |
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 | ||||||
|---|---|---|---|---|---|---|
| Jun 5, 2026 | 4B | 3 BR · 2.5 BA | 1,535 | $2,815,000 | $1,834 | +8.3% |
| May 11, 2026 | 5B | 3 BR · 2.5 BA | 1,525 | $2,825,000 | $1,852 | +9.7% |
| Dec 10, 2025 | 1B | 1 BR · 1 BA | 786 | $930,000 | $1,183 | -2.1% |
| Aug 19, 2025 | 3B | 3 BR · 2.5 BA | 1,535 | $2,575,000 | $1,678 | -2.8% |
| Nov 15, 2023 | 1B | 1 BR · 1 BAoutside the market statistics (eligibility screen) | — | $865,000 | — | -3.8% |
| May 15, 2023 | 4A | 3 BR · 2.5 BA | 1,515 | $2,510,000 | $1,657 | +0.0% |
| May 16, 2022 | 7A | 3 BR · 1.5 BA | 1,428 | $2,400,000 | $1,681 | -2.0% |
| Oct 25, 2021 | 1A | 3 BR · 2.5 BA | 1,904 | $2,612,500 | $1,372 | -6.5% |
| Sep 9, 2021 | 7B | 3 BR · 2 BA | 1,505 | $2,300,000 | $1,528 | — |
| Feb 19, 2020 | 5B | 3 BR · 2.5 BA | 1,535 | $2,100,000 | $1,368 | -4.3% |
| Dec 16, 2019 | 2A | 2 BR · 2 BA | 1,050 | $1,425,000 | $1,357 | +0.0% |
| Jul 24, 2019 | 5A | 3 BR · 2 BA | 1,525 | $2,250,000 | $1,475 | +0.0% |
| Apr 25, 2018 | 3B | 3 BR · 2.5 BA | 1,535 | $2,325,000 | $1,515 | +5.7% |
| Jul 31, 2017 | 4A | 3 BR · 2.5 BA | 1,525 | $2,200,000 | $1,443 | +0.0% |
| Aug 21, 2013 | 7B | 3 BRoutside the market statistics (eligibility screen) | — | $2,150,000 | — | +0.0% |
| Jul 29, 2013 | 2B | 2 BRoutside the market statistics (eligibility screen) | — | $1,500,000 | — | +0.0% |
| Jun 26, 2013 | 1B | 1 BR | 786 | $783,897 | $997 | -1.9% |
| Jun 14, 2013 | 2A | 2 BRoutside the market statistics (eligibility screen) | — | $1,173,887 | — | +2.1% |
| Jun 14, 2013 | 3A | 3 BRoutside the market statistics (eligibility screen) | — | $1,625,000 | — | +0.0% |
| Jun 12, 2013 | 2C | 1 BRoutside the market statistics (eligibility screen) | — | $865,000 | — | +0.0% |
| Jun 4, 2013 | 6A | 3 BRoutside the market statistics (eligibility screen) | — | $1,733,925 | — | +2.0% |
| May 29, 2013 | 7A | 3 BRoutside the market statistics (eligibility screen) | — | $2,140,475 | — | +22.3% |
| May 16, 2013 | 6B | 3 BRoutside the market statistics (eligibility screen) | — | $1,861,206 | — | +2.0% |
| May 16, 2013 | 4A | 3 BR | 1,515 | $1,700,000 | $1,122 | +0.0% |
| May 15, 2013 | 4B | 3 BRoutside the market statistics (eligibility screen) | — | $1,782,087 | — | +1.8% |
| May 15, 2013 | 5A | 3 BRoutside the market statistics (eligibility screen) | — | $1,782,087 | — | +1.8% |
| May 14, 2013 | 1A | 3 BRoutside the market statistics (eligibility screen) | — | $2,339,783 | — | +2.0% |
| May 14, 2013 | 3B | 3 BRoutside the market statistics (eligibility screen) | — | $1,675,000 | — | +0.0% |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-01066-7503; each condominium apartment is its own tax lot). 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.
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.
646.939.7375 · c.cohen@compass.com