Back to The Dean Boerum Condominium building profile
The Dean Boerum Condominium (40 Dean Street)Recorded sales & closing prices
40 Dean Street, Brooklyn, NY 11201
14 recorded closings, 2005–2025. Sortable and searchable below.
- Recorded closings
- 14
- Date range
- 2005–2025
- Median $/sf
- $1,200
- Listing discount
- 1.2%
- Monthly carry/sf
- $0.53
- Price range
- $585K – $1.84M
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. This standardized trend is a separate series from the latest median above, which is the raw recorded sales. (2022 marks the rate-shock inflection.) Like-for-like repeat-sale figures to follow.
The complete recorded-sale history for The Dean Boerum Condominium, compiled from NYC Department of Finance transfer records, with apartment-by-apartment detail from The Roebling Research Library. Across sales with a public asking price, the building carries a median listing discount of 1.2% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.
Price per square foot over time
12 sales with a known square footage, by closing date.
Recent closings
The building’s 10 most recent market sales.
| Date | Unit | Apartment | Price | $/sf | vs. Ask |
|---|---|---|---|---|---|
| Dec 8, 2021 | G2 | 3 BR · 3 BA · 1,538 sf | $1,845,000 | $1,200 | -2.6% |
| Sep 21, 2020 | 2A | 2 BR · 2 BA · 780 sf | $932,000 | $1,195 | -20.7% |
| Nov 4, 2015 | 2C | 2 BR · 2 BA · 768 sf | $935,000 | $1,217 | +38.5% |
| Jul 21, 2015 | 2A | 2 BR · 2 BA · 780 sf | $905,000 | $1,160 | +0.0% |
| Jun 2, 2015 | G2 | 2 BR · 1,537 sf | $1,625,000 | $1,057 | +4.8% |
| Mar 11, 2015 | 2B | 2 BR · 771 sf | $855,000 | $1,109 | -5.0% |
| Aug 23, 2012 | 2A | 2 BR · 757 sf | $660,000 | $872 | +1.7% |
| Sep 14, 2009 | G1 | 2 BR · 1,228 sf | $715,000 | $582 | -10.5% |
| May 29, 2008 | 2C | 2 BR · 2 BA · 765 sf | $675,000 | $882 | — |
| May 30, 2006 | 2B | 2 BR · 2 BA · 771 sf | $600,000 | $778 | -7.7% |
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 6, 2025 | 2C | 2 BR · 2 BAoutside the market statistics (eligibility screen) | — | $1,350,000 | — | +8.0% |
| Dec 8, 2021 | G2 | 3 BR · 3 BA | 1,538 | $1,845,000 | $1,200 | -2.6% |
| Sep 21, 2020 | 2A | 2 BR · 2 BA | 780 | $932,000 | $1,195 | -20.7% |
| Nov 4, 2015 | 2C | 2 BR · 2 BA | 768 | $935,000 | $1,217 | +38.5% |
| Jul 21, 2015 | 2A | 2 BR · 2 BA | 780 | $905,000 | $1,160 | +0.0% |
| Jun 2, 2015 | G2 | 2 BR | 1,537 | $1,625,000 | $1,057 | +4.8% |
| Mar 11, 2015 | 2B | 2 BR | 771 | $855,000 | $1,109 | -5.0% |
| Aug 23, 2012 | 2A | 2 BR | 757 | $660,000 | $872 | +1.7% |
| Sep 14, 2009 | G1 | 2 BR | 1,228 | $715,000 | $582 | -10.5% |
| May 29, 2008 | 2C | 2 BR · 2 BA | 765 | $675,000 | $882 | — |
| Jan 16, 2007 | G2 | 2 BRoutside the market statistics (eligibility screen) | — | $975,000 | — | -2.4% |
| May 30, 2006 | 2B | 2 BR · 2 BA | 771 | $600,000 | $778 | -7.7% |
| Mar 17, 2005 | G1Sponsor Sale | 2 BR | 1,228 | $650,661 | $530 | +1.8% |
| Feb 24, 2005 | 3ASponsor Sale | 1,144 | $585,493 | $512 | — |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00193-7501; 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.
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646.939.7375 · c.cohen@compass.com