Back to The Glen Cairn building profile
270 Riverside Drive (Glen Cairn)Recorded sales & closing prices
270 Riverside Drive, New York, NY 10025
38 recorded closings, 2006–2025. Sortable and searchable below.
- Recorded closings
- 38
- Date range
- 2006–2025
- Median $/sf
- $1,219
- Listing discount
- 1.7%
- Monthly carry/sf
- $2.10
- Price range
- $850K – $6.72M
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 Glen Cairn prices as prewar Riverside Drive condominium inventory, a genuinely small category — most of the Drive is cooperative. Compare nearby cooperative sales with adjustments for ownership, financing, maintenance, taxes and apartment characteristics; condominium form alone does not establish higher pricing.
Per-square-foot is the right unit of analysis, run against exposure first. Park-facing residences on the Riverside Drive line and side-street residences on West 99th are different products, and the spread between them is wide enough that a building average will mislead. Floor level matters second, condition third — and condition varies more here than in most buildings, because the conversion renovated vacant apartments and left occupied ones alone. A sponsor-renovated apartment and an original tenant apartment can sit on the same line.
Sales activity has two distinct populations: sponsor closings from 2016 onward, alongside the sponsor-held rentals documented in the amendments, and secondary resales accumulating since. Comparables should be selected from the same population and indexed to the last complete year. Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The complete recorded-sale history for The Glen Cairn, 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 1.7% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.
Price per square foot over time
35 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 |
|---|---|---|---|---|---|
| Sep 11, 2025 | 2C | 4 BR · 3 BA · 2,400 sf | $2,600,000 | $1,083 | +4.2% |
| Dec 13, 2024 | 3D | 2,010 sf | $2,895,000 | $1,440 | — |
| Mar 1, 2024 | 5A | 4 BR · 4 BA · 2,845 sf | $5,275,000 | $1,854 | -4.0% |
| Feb 15, 2024 | 4B | 2,228 sf | $3,300,000 | $1,481 | — |
| Feb 5, 2024 | PH | 716 sf | $850,000 | $1,187 | — |
| Aug 8, 2023 | 10D | 3 BR · 3 BA · 2,010 sf | $3,100,000 | $1,542 | -5.9% |
| Jul 28, 2023 | 11A | 4 BR · 4 BA · 2,845 sf | $5,650,000 | $1,986 | -10.3% |
| Aug 16, 2021 | 2A | 5 BR · 3 BA · 2,845 sf | $3,572,625 | $1,256 | -2.1% |
| Aug 3, 2021 | 10A | 4 BR · 4 BA · 2,845 sf | $5,225,000 | $1,837 | -3.2% |
| Mar 1, 2021 | 8A | 3 BR · 4 BA · 2,845 sf | $4,995,000 | $1,756 | — |
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 | ||||||
|---|---|---|---|---|---|---|
| Sep 11, 2025 | 2C | 4 BR · 3 BA | 2,400 | $2,600,000 | $1,083 | +4.2% |
| Dec 13, 2024 | 3D | 2,010 | $2,895,000 | $1,440 | — | |
| Mar 1, 2024 | 5A | 4 BR · 4 BA | 2,845 | $5,275,000 | $1,854 | -4.0% |
| Feb 15, 2024 | 4B | 2,228 | $3,300,000 | $1,481 | — | |
| Feb 5, 2024 | PH | 716 | $850,000 | $1,187 | — | |
| Aug 8, 2023 | 10D | 3 BR · 3 BA | 2,010 | $3,100,000 | $1,542 | -5.9% |
| Jul 28, 2023 | 11A | 4 BR · 4 BA | 2,845 | $5,650,000 | $1,986 | -10.3% |
| Aug 16, 2021 | 2A | 5 BR · 3 BA | 2,845 | $3,572,625 | $1,256 | -2.1% |
| Aug 3, 2021 | 10A | 4 BR · 4 BA | 2,845 | $5,225,000 | $1,837 | -3.2% |
| Mar 1, 2021 | 8A | 3 BR · 4 BA | 2,845 | $4,995,000 | $1,756 | — |
| Jan 20, 2021 | 2D | 2 BR · 3 BA | 2,010 | $2,750,000 | $1,368 | -8.3% |
| May 19, 2020 | 3A | 2,845 | $4,965,000 | $1,745 | — | |
| Jan 19, 2020 | 2D | 2 BR · 3 BA | 2,010 | $2,750,000 | $1,368 | — |
| Sep 5, 2019 | 12A | 3 BR · 4 BA | 2,845 | $6,715,358 | $2,360 | -1.2% |
| Jun 27, 2019 | 3C | 4 BR · 3 BA | 2,395 | $3,900,000 | $1,628 | -2.5% |
| Aug 28, 2018 | 11A | 3 BR | 2,845 | $5,650,000 | $1,986 | -5.0% |
| Apr 12, 2018 | 5C | 4 BR · 3 BA | 2,395 | $4,271,558 | $1,784 | +1.8% |
| Feb 16, 2018 | 1B | 3 BR · 3 BA | 1,964 | $2,650,000 | $1,349 | -1.7% |
| Jan 18, 2018 | 6C | 4 BR · 3 BA | 2,395 | $4,150,000 | $1,733 | -5.1% |
| Jan 5, 2018 | 8C | 4 BR · 3 BA | 2,395 | $4,150,000 | $1,733 | -9.8% |
| Sep 26, 2017 | 4D | 2 BR · 3 BAnon-market transfer (excluded from $/sf & trends) | 2,010 | $1,000,000 | — | — |
| Sep 25, 2017 | 3B | 4 BR · 3 BA | 2,228 | $3,156,575 | $1,417 | -7.0% |
| May 2, 2017 | 2C | 4 BR · 3 BA | 2,395 | $2,202,500 | $920 | — |
| Feb 1, 2017 | 12D | 2 BR · 3 BA | 2,010 | $3,462,050 | $1,722 | -3.7% |
| Nov 7, 2016 | 7C | 3 BR · 3 BA | 2,395 | $4,734,862 | $1,977 | +1.8% |
| Nov 1, 2016 | 6D | non-market transfer (excluded from $/sf & trends) | 2,010 | $1,154,547 | — | — |
| Oct 14, 2016 | 4D | 2 BR · 3 BA | 2,010 | $3,253,308 | $1,619 | +1.8% |
| Oct 13, 2016 | 12B | 2,228 | $2,087,412 | $937 | — | |
| Sep 8, 2016 | 10A | 3 BR · 4 BA | 2,845 | $5,391,633 | $1,895 | -0.1% |
| Aug 31, 2016 | 9A | 3 BR · 4 BA | 2,845 | $5,391,633 | $1,895 | +1.8% |
| Aug 30, 2016 | 11D | 2 BR · 3 BA | 2,010 | $3,436,593 | $1,710 | -0.4% |
| Aug 23, 2016 | 3C | 3 BR · 3 BA | 2,395 | $4,073,000 | $1,701 | -0.5% |
| Aug 17, 2016 | 4A | 3 BR · 4 BA | 2,845 | $4,984,333 | $1,752 | +1.8% |
| Aug 9, 2016 | 2D | 2 BR · 3 BA | 2,010 | $3,151,483 | $1,568 | +1.8% |
| Aug 3, 2016 | 5A | 3 BR · 4 BA | 2,845 | $4,989,425 | $1,754 | -0.1% |
| Jul 28, 2016 | 10D | 2 BR · 3 BA | 2,010 | $3,411,137 | $1,697 | -3.9% |
| Jul 27, 2016 | 11A | 3 BR · 4 BA | 2,845 | $5,854,937 | $2,058 | +6.6% |
| Dec 31, 2006 | — | outside the market statistics (eligibility screen) | — | $5,518,525 | — | — |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01888-7504; 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