303 East 77th Street (The Isis)Recorded sales & closing prices
303 East 77th Street, New York, NY 10075
53 recorded closings, 2010–2025. Sortable and searchable below.
- Recorded closings
- 53
- Date range
- 2010–2025
- Median $/sf
- $1,810
- Listing discount
- 6.8%
- Monthly carry/sf
- $3.68
- Price range
- $1.32M – $5.8M
Change in the building’s median $/sf over each window, adjusted to a floor-adjusted basis — standardized to the building’s average floor, so it reflects price rather than which floors happened to sell. 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 Isis prices as a full-floor-scale Upper East Side condominium without an amenity program, and its median transaction sits near $2.5 million. Against a median unit size close to 1,620 square feet in Department of Finance records, that implies a price per square foot in the mid-$1,500s — above the prewar cooperative inventory that surrounds it and below the new-construction towers a few blocks west, which is a fair reading of what the building is.
Position in the stack is the first pricing variable. The lower floors carry plates 400 to 500 square feet smaller than the upper floors in the same lines. A comparable drawn from the wrong third of the building will mislead in either direction.
The two combined residences are their own market. Unit 4 and Unit 15A/B are the only full-floor homes below the penthouse level, and there is no third comparable inside the building. Price them against full-floor product elsewhere on the Upper East Side, not against the A and B lines here.
The right comparable set is condominium, not cooperative. The buildings immediately around 303 East 77th Street are largely prewar and postwar cooperatives with entirely different policies, financing rules, buyer pools and carrying-cost structures. Comparing on price per foot across that line produces a number nobody should rely on.
Carrying cost is the swing factor. Full unabated taxes, a staffed lobby and a small unit count. Run True Monthly Carrying Cost against the actual tax bill and the current common charge.
Market statements here are 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 Isis, named for the Egyptian goddess. The condominium is recorded in city records as Isis Condominium, 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 6.8% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.
Price per square foot over time
51 sales with a known square footage, by closing date.
The vertical premium
The climb in price per square foot as you rise through the building — light and views included, time-adjusted to today’s market.
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 |
|---|---|---|---|---|---|
| Jan 6, 2025 | PHC | 2 BR · 2.5 BA · 1,652 sf | $2,990,000 | $1,810 | -9.4% |
| Dec 12, 2024 | 6B | 3 BR · 3 BA · 1,621 sf | $1,750,000 | $1,080 | -7.9% |
| Aug 20, 2024 | 16B | 3 BR · 2.5 BA · 1,621 sf | $2,500,000 | $1,542 | -7.4% |
| Aug 1, 2024 | 14A | 3 BR · 3 BA · 1,691 sf | $2,575,000 | $1,523 | -13.4% |
| May 31, 2024 | PHD | 2 BR · 2 BA · 1,285 sf | $1,940,000 | $1,510 | -25.2% |
| Mar 28, 2023 | 10B | 3 BR · 2.5 BA · 1,621 sf | $2,600,000 | $1,604 | -13.2% |
| Sep 8, 2022 | 6A | 2 BR · 2.5 BA | $1,735,000 | -11.0% | |
| May 9, 2022 | 10A | 3 BR · 3 BA · 1,691 sf | $2,795,000 | $1,653 | +0.0% |
| Dec 9, 2021 | 8A | 3 BR · 3 BA · 1,691 sf | $2,450,000 | $1,449 | -2.0% |
| Sep 1, 2021 | 11B | 3 BR · 2.5 BA · 1,621 sf | $2,320,000 | $1,431 | -7.0% |
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 | ||||||
|---|---|---|---|---|---|---|
| Jan 6, 2025 | PHC | 2 BR · 2.5 BA | 1,652 | $2,990,000 | $1,810 | -9.4% |
| Dec 12, 2024 | 6B | 3 BR · 3 BA | 1,621 | $1,750,000 | $1,080 | -7.9% |
| Aug 20, 2024 | 16B | 3 BR · 2.5 BA | 1,621 | $2,500,000 | $1,542 | -7.4% |
| Aug 1, 2024 | 14A | 3 BR · 3 BA | 1,691 | $2,575,000 | $1,523 | -13.4% |
| May 31, 2024 | PHD | 2 BR · 2 BA | 1,285 | $1,940,000 | $1,510 | -25.2% |
| Mar 28, 2023 | 10B | 3 BR · 2.5 BA | 1,621 | $2,600,000 | $1,604 | -13.2% |
| Sep 8, 2022 | 6A | 2 BR · 2.5 BA | — | $1,735,000 | — | -11.0% |
| May 9, 2022 | 10A | 3 BR · 3 BA | 1,691 | $2,795,000 | $1,653 | +0.0% |
| Dec 9, 2021 | 8A | 3 BR · 3 BA | 1,691 | $2,450,000 | $1,449 | -2.0% |
| Sep 1, 2021 | 11B | 3 BR · 2.5 BA | 1,621 | $2,320,000 | $1,431 | -7.0% |
| Aug 27, 2021 | 11A | 3 BR · 3 BA | 1,691 | $2,500,000 | $1,478 | -2.9% |
| Aug 11, 2021 | 2B | 2 BR · 2.5 BA | 1,346 | $1,775,000 | $1,319 | -9.0% |
| Jul 29, 2021 | 5A | 2 BR · 2.5 BA | 1,250 | $1,765,000 | $1,412 | -4.5% |
| Jul 23, 2021 | 4 | 4 BR · 4.5 BA | 2,744 | $3,700,000 | $1,348 | -2.5% |
| Sep 26, 2019 | 10A | 3 BR · 3 BA | 1,691 | $2,342,500 | $1,385 | -12.4% |
| Jan 29, 2019 | 10B | 3 BR · 2.5 BA | 1,621 | $2,600,000 | $1,604 | -8.8% |
| Jul 31, 2018 | 4 | 4 BRnon-market transfer (excluded from $/sf & trends) | — | $371,488 | — | — |
| Mar 27, 2017 | 4 | 4 BR | 2,745 | $4,200,000 | $1,530 | -2.3% |
| Feb 9, 2017 | 2A | 2 BR · 2.5 BA | 1,205 | $1,700,000 | $1,411 | -8.1% |
| May 27, 2015 | 6B | 3 BR | 1,439 | $2,400,000 | $1,668 | -2.0% |
| May 18, 2015 | PHA | 3 BR | 2,559 | $5,575,000 | $2,179 | -6.3% |
| Oct 10, 2014 | 5B | 2 BR | 1,439 | $2,280,000 | $1,584 | -11.8% |
| Sep 13, 2013 | 15A | 4 BR | 3,318 | $5,804,025 | $1,749 | — |
| Aug 23, 2013 | 14A | 3 BR | 1,691 | $2,749,275 | $1,626 | +1.8% |
| May 14, 2013 | 16A | 3 BR | 1,691 | $2,771,990 | $1,639 | -1.9% |
| May 2, 2013 | 14B | 3 BR | 1,661 | $2,624,343 | $1,580 | +0.9% |
| Mar 19, 2013 | 12A | 3 BR | 1,691 | $2,601,850 | $1,539 | -1.8% |
| Mar 8, 2013 | 16B | 3 BR | 1,621 | $2,710,395 | $1,672 | -0.5% |
| Feb 20, 2013 | 11A | 3 BR | 1,691 | $2,552,350 | $1,509 | -1.8% |
| Dec 28, 2012 | PHA | 4 BR | 2,559 | $4,687,350 | $1,832 | -6.2% |
| Aug 10, 2012 | PHC | 2 BR | 1,652 | $2,515,487 | $1,523 | -2.1% |
| May 31, 2012 | 12B | 3 BR | 1,661 | $2,400,000 | $1,445 | -10.0% |
| Apr 30, 2012 | 2B | 2 BR | 1,346 | $1,432,350 | $1,064 | -7.6% |
| Apr 18, 2012 | 8A | 3 BR | 1,691 | $2,374,206 | $1,404 | +0.0% |
| Mar 6, 2012 | 7B | 2 BR | 1,439 | $1,800,000 | $1,251 | -5.0% |
| Jan 31, 2012 | 11B | 3 BR | 1,661 | $2,394,268 | $1,441 | -6.9% |
| Sep 13, 2011 | 2ASponsor Sale | 2 BR | 1,205 | $1,320,000 | $1,095 | -9.0% |
| Aug 5, 2011 | PHBSponsor Sale | 2 BR | 1,305 | $2,018,250 | $1,547 | -8.5% |
| Jul 22, 2011 | 10BSponsor Sale | 3 BR | 1,661 | $2,326,701 | $1,401 | -5.9% |
| May 19, 2011 | 8BSponsor Sale | 2 BR | 1,439 | $1,881,726 | $1,308 | -8.7% |
| May 10, 2011 | 3ASponsor Sale | 2 BR | 1,250 | $1,374,637 | $1,100 | -12.8% |
| Apr 27, 2011 | 7ASponsor Sale | 3 BR | 1,691 | $2,240,150 | $1,325 | -6.7% |
| Apr 11, 2011 | 10ASponsor Sale | 3 BR | 1,691 | $2,520,168 | $1,490 | -9.2% |
| Apr 1, 2011 | PHDSponsor Sale | 2 BR | 1,285 | $1,800,000 | $1,401 | -15.7% |
| Feb 22, 2011 | 9BSponsor Sale | 3 BR | 1,621 | $2,150,949 | $1,327 | -9.5% |
| Jan 7, 2011 | 4BSponsor Sale | 2 BR | 1,379 | $1,552,831 | $1,126 | -3.5% |
| Jan 6, 2011 | 4ASponsor Sale | 2 BR | 1,250 | $1,400,094 | $1,120 | -3.9% |
| Dec 20, 2010 | 3BSponsor Sale | 2 BR · 2.5 BA | 1,379 | $1,562,500 | $1,133 | -0.2% |
| Dec 13, 2010 | 6ASponsor Sale | 2 BR | 1,250 | $1,522,125 | $1,218 | -1.4% |
| Dec 3, 2010 | 6BSponsor Sale | 3 BR | 1,439 | $1,600,000 | $1,112 | -6.9% |
| Nov 29, 2010 | 5ASponsor Sale | 2 BR · 2.5 BA | 1,250 | $1,527,630 | $1,222 | — |
| Nov 23, 2010 | 9ASponsor Sale | 3 BR | 1,691 | $2,200,000 | $1,301 | -5.5% |
| Nov 16, 2010 | 5BSponsor Sale | 2 BR | 1,439 | $1,550,000 | $1,077 | -7.4% |
Sources, exclusions and how these figures are computed
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01452-7501) 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.
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