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Buildings·Upper West Side·The Gemstone·Sold prices

235 West End Avenue (The Gemstone)Recorded sales & closing prices

235 West End Avenue, New York, NY 10023

142 recorded closings, 2003–2026. Sortable and searchable below.

Recorded closings
142
Date range
2003–2026
Median $/sf
$1,203
2026 · adjusted
Listing discount
3.7%
median, from last ask
Price range
$515K – $2.75M
Price shift · median $/sf · constant-quality
Since 2003
▲ +34.1%
10-Year
▼ -10.1%
Since 2022
▼ -2.4%
1-Year
▲ +0.9%

Change in the building’s median $/sf over each window, adjusted to a constant-quality (average-floor) unit so it reflects price — not which floors happened to sell. (2022 marks the rate-shock inflection.) Like-for-like repeat-sale figures to follow.

The Gemstone trades on the strength of two features that rarely appear together on West End Avenue: prewar Bing & Bing architecture and condominium ownership. Pricing is best read on a price-per-square-foot basis, with the condominium structure itself functioning as a premium input against the cooperative inventory that dominates the corridor. Within the building, value is driven by exposure, floor height, room proportion, and renovation condition. Apartment-level closing detail should be sourced from public records for full transactional context, and pricing should be validated against the most recent comparable sales at the time of offer.

The complete recorded-sale history for The Gemstone, 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 3.7% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.

Price per square foot over time

119 sales with a known square footage, by closing date.

$554$1,948$3,342'03'07'11'15'19'23'2610F · $787/sf · 20032F · $804/sf · 200314F · $852/sf · 20035C · $771/sf · 20048E · $898/sf · 200416A · $899/sf · 200414H · $1,097/sf · 200416C · $929/sf · 20048G · $893/sf · 20046G · $924/sf · 20052F · $804/sf · 20058H · $1,080/sf · 20059H · $1,097/sf · 200512A · $905/sf · 200511H · $1,084/sf · 200517B · $1,025/sf · 200510A · $904/sf · 20053E · $886/sf · 20057B · $936/sf · 20053H · $1,074/sf · 200511C · $1,039/sf · 20053B · $878/sf · 20053E · $960/sf · 20057F · $703/sf · 20055C · $972/sf · 200611F · $1,025/sf · 200612E · $1,027/sf · 200610E · $1,129/sf · 200611A · $900/sf · 20065E · $931/sf · 20063D · $900/sf · 200615C · $962/sf · 200616J · $1,190/sf · 200616F · $1,079/sf · 20062J · $729/sf · 20078A · $1,074/sf · 20076J · $1,046/sf · 200715E · $1,160/sf · 20072C · $920/sf · 20074C · $1,058/sf · 20073D · $1,033/sf · 20079D · $1,000/sf · 20073E · $1,047/sf · 20073C · $1,017/sf · 200810J · $1,059/sf · 20085F · $1,133/sf · 200814F · $1,230/sf · 20082D · $833/sf · 200810F · $1,073/sf · 200916C · $907/sf · 20093E · $867/sf · 20098G · $954/sf · 201010B · $3,193/sf · 20102C · $929/sf · 201010J · $1,100/sf · 20103C · $999/sf · 20102F · $804/sf · 201011A · $1,010/sf · 20108D · $949/sf · 20112J · $996/sf · 20112H · $922/sf · 20115F · $1,138/sf · 20116G · $927/sf · 20119C · $962/sf · 201215F · $1,524/sf · 201216G · $1,131/sf · 20124G · $1,046/sf · 201217A · $1,111/sf · 20121D · $924/sf · 201310ABC · $1,262/sf · 20149D · $1,090/sf · 201411A · $1,207/sf · 20152C · $1,264/sf · 20155DE · $1,500/sf · 20153A · $1,398/sf · 20151JK · $1,094/sf · 20155C · $1,241/sf · 20158J · $1,590/sf · 201510E · $1,239/sf · 201517G · $1,350/sf · 201611F · $1,321/sf · 20165B · $1,257/sf · 201612G · $1,279/sf · 20163G · $1,242/sf · 20178A · $1,274/sf · 20179D · $1,250/sf · 201717D · $1,266/sf · 20171G · $1,126/sf · 20182A · $1,259/sf · 20189D · $1,090/sf · 201810F · $1,456/sf · 201815D · $1,250/sf · 20189A · $1,311/sf · 20184G · $1,208/sf · 20181H · $1,108/sf · 201811C · $1,204/sf · 20198E · $1,276/sf · 20194D · $1,025/sf · 2019PHC · $2,029/sf · 20191I · $1,431/sf · 201910ABC · $1,310/sf · 202010D · $1,075/sf · 202014E · $1,304/sf · 20206E · $1,160/sf · 20219J · $1,263/sf · 20213G · $1,188/sf · 202112B · $1,154/sf · 2021PHA · $1,561/sf · 20222J · $1,309/sf · 202215C · $1,036/sf · 20236G · $1,194/sf · 20236A · $1,126/sf · 20236H · $1,163/sf · 20244D · $1,080/sf · 20248B · $970/sf · 20246J · $1,601/sf · 202416A · $1,178/sf · 20258D · $1,139/sf · 202515E · $1,254/sf · 2026
Each dot is one recorded sale with a known interior square footage, plotted by closing date against price per square foot. The line is the median $/sf each year, adjusted to a constant-quality (average-floor) unit — so it reflects price movement, not which floors happened to sell that year. Individual sale prices in the table below are unadjusted — and you can click any dot to jump straight to that sale.
Building average$1,203/sfevery bar sits above or below this · 0%

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.

Floors 16–20 1 sale
$1,217/sf+1%
Floors 11–15 4 sales
$1,217/sf+1%
Floors 6–10 10 sales
$1,208/sf+0%
Floors 1–5 3 sales
$1,168/sf-3%

Premium by line

What each line’s exposure is worth — its light, outlook, and orientation — measured against the building’s average sale.

Line J 3 sales
$1,343/sf+12%
Line E 3 sales
$1,299/sf+8%
Line D 3 sales
$1,142/sf-5%

Recent closings

The building’s 10 most recent market sales.

DateUnitApartmentPrice$/sfvs. Ask
Apr 8, 202615E1 BR · 1 BA · 678 sf$850,000$1,254-5.0%
Sep 25, 20258D1 BR · 1 BA · 777 sf$885,000$1,139-6.8%
Aug 5, 202516A1 BR · 1 BA · 675 sf$795,000$1,178—
Oct 3, 20245G1 BR · 1 BA$732,500-5.5%
Sep 24, 20243A1 BR · 1 BA$799,000—
Aug 30, 20249G1 BR · 1 BA$720,000-0.7%
Aug 12, 20246J2 BR · 2 BA · 1,059 sf$1,695,000$1,601—
Jul 10, 20248B1 BR · 1 BA · 732 sf$710,000$970-18.9%
Feb 16, 20244D1 BR · 1 BA · 778 sf$840,000$1,080-4.0%
Feb 13, 20246H2 BR · 2 BA · 859 sf$999,000$1,163-9.2%

The retrade record

Lines that have changed hands more than once in the public record — the building’s appreciation arc, apartment by apartment. Showing the 24 strongest of 35 repeat-trade lines; sort the table below by Unit to see every line’s full history.

10F · 927 sf+85%
$730,000 ($787/sf) 2003 → $995,000 ($1,073/sf) 2009 → $1,350,000 ($1,456/sf) 2018
5C · 725 sf+61%
$559,000 ($771/sf) 2004 → $705,000 ($972/sf) 2006 → $900,000 ($1,241/sf) 2015
6J · 1,059 sf+53%
$1,108,000 ($1,046/sf) 2007 → $1,695,000 ($1,601/sf) 2024
1E+46%
$530,000 2004 → $530,000 2010 → $650,000 2012 → $775,000 2015
14F · 927 sf+44%
$790,000 ($852/sf) 2003 → $1,140,000 ($1,230/sf) 2008
8E · 725 sf+42%
$650,827 ($898/sf) 2004 → $925,000 ($1,276/sf) 2019
2C · 700 sf+37%
$644,000 ($920/sf) 2007 → $650,000 ($929/sf) 2010 → $885,000 ($1,264/sf) 2015
11A · 750 sf+34%
$675,000 ($900/sf) 2006 → $757,500 ($1,010/sf) 2010 → $905,000 ($1,207/sf) 2015
16A · 675 sf+31%
$605,000 ($899/sf) 2004 → $877,000 2020 → $795,000 ($1,178/sf) 2025
5F+31%
$1,050,000 ($1,133/sf) 2008 → $1,055,000 ($1,138/sf) 2011 → $1,375,000 2017
6G · 650 sf+30%
$599,000 ($924/sf) 2005 → $601,000 ($927/sf) 2011 → $776,000 ($1,194/sf) 2023
11F · 927 sf+29%
$950,000 ($1,025/sf) 2006 → $1,225,000 ($1,321/sf) 2016
12A+28%
$610,950 ($905/sf) 2005 → $779,000 2013
16E+24%
$795,000 2006 → $987,500 2017
8D · 777 sf+20%
$737,500 ($949/sf) 2011 → $885,000 ($1,139/sf) 2025
8A · 675 sf+19%
$725,000 ($1,074/sf) 2007 → $860,000 ($1,274/sf) 2017
11C · 676 sf+16%
$702,593 ($1,039/sf) 2005 → $814,000 ($1,204/sf) 2019
15D · 780 sf+16%
$837,500 2013 → $975,000 ($1,250/sf) 2018
4G · 650 sf+15%
$680,000 ($1,046/sf) 2012 → $785,000 ($1,208/sf) 2018
3D · 750 sf+15%
$675,000 ($900/sf) 2006 → $775,000 ($1,033/sf) 2007
9D · 780 sf+9%
$780,000 ($1,000/sf) 2007 → $850,000 ($1,090/sf) 2014 → $975,000 ($1,250/sf) 2017 → $850,000 ($1,090/sf) 2018
10E · 698 sf+9%
$790,162 ($1,129/sf) 2006 → $865,000 ($1,239/sf) 2015
15C · 676 sf+8%
$650,000 ($962/sf) 2006 → $915,000 2015 → $700,000 ($1,036/sf) 2023
8G · 700 sf+7%
$625,000 ($893/sf) 2004 → $668,000 ($954/sf) 2010

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.

142 recorded sales
Apartment
Apr 8, 202615E1 BR · 1 BA678$850,000$1,254-5.0%
Sep 25, 20258D1 BR · 1 BA777$885,000$1,139-6.8%
Aug 5, 202516A1 BR · 1 BA675$795,000$1,178—
Oct 3, 20245G1 BR · 1 BA—$732,500—-5.5%
Sep 24, 20243A1 BR · 1 BA—$799,000——
Aug 30, 20249G1 BR · 1 BA—$720,000—-0.7%
Aug 12, 20246J2 BR · 2 BA1,059$1,695,000$1,601—
Jul 10, 20248B1 BR · 1 BA732$710,000$970-18.9%
Feb 16, 20244D1 BR · 1 BA778$840,000$1,080-4.0%
Feb 13, 20246H2 BR · 2 BA859$999,000$1,163-9.2%
Dec 12, 20236A1 BR · 1 BA675$760,000$1,126-3.7%
Jul 7, 20236G1 BR · 1 BA650$776,000$1,194+6.3%
Apr 17, 202315C1 BR · 1 BA676$700,000$1,036-12.4%
Dec 15, 202216H2 BR · 2 BA—$1,100,000—-7.2%
Jul 28, 20222J2 BR · 2 BA1,150$1,505,000$1,309-4.4%
Mar 16, 2022PHA1 BR · 1 BA1,134$1,770,000$1,561-9.2%
Aug 30, 202112B1 BR732$845,000$1,154-2.8%
Jul 19, 20213G1 BR · 1 BA648$770,000$1,188-1.9%
Apr 29, 20219J2 BR · 2 BA1,029$1,300,000$1,263-13.0%
Mar 5, 20216E1 BR · 1 BA698$810,000$1,160-1.2%
Oct 6, 202014E1 BR · 1 BA698$910,000$1,304-1.6%
Jul 21, 202016A1 BR · 1 BA—$877,000—-7.7%
Jul 9, 202010D1 BR · 1 BA800$860,000$1,075-9.5%
Feb 20, 202010ABC3 BR · 3 BA2,100$2,750,000$1,310-5.0%
Dec 27, 20191I5 BR · 1 BA360$515,000$1,431-7.9%
Nov 13, 2019PHC1 BR · 1 BA961$1,950,000$2,029-2.3%
Oct 18, 20194D1 BR · 1 BA778$797,209$1,025-17.4%
May 24, 20198E1 BR · 1 BA725$925,000$1,276-2.6%
Apr 15, 201911C1 BR · 1 BA676$814,000$1,204-7.0%
Dec 27, 20181H533$590,338$1,108—
Dec 12, 20184G1 BR · 1 BA650$785,000$1,208-5.4%
Oct 26, 20189A1 BR · 1 BA675$885,000$1,311-6.3%
Oct 3, 201815D1 BR · 1 BA780$975,000$1,250-2.4%
Jul 9, 201810F2 BR · 2 BA927$1,350,000$1,456—
Jun 16, 20189D1 BR780$850,000$1,090—
Jun 7, 20182A1 BR675$850,000$1,259+0.1%
Mar 29, 20181G1 BR · 1 BA653$735,000$1,126-6.8%
Dec 6, 201717D1 BR · 1 BA778$985,000$1,266-0.5%
Oct 19, 20179D1 BR · 1 BA780$975,000$1,250-11.4%
Oct 12, 20178A1 BR · 1 BA675$860,000$1,274-3.9%
Jul 10, 201716E1 BR—$987,500—-1.2%
May 22, 20178C1 BR—$840,056—+3.1%
May 9, 20175F2 BR—$1,375,000——
Feb 10, 20173G1 BR · 1 BA648$805,000$1,242-8.4%
Dec 13, 201612G1 BR680$870,000$1,279-1.0%
Aug 24, 20165B1 BR732$920,000$1,257-6.6%
Jul 7, 201611F927$1,225,000$1,321—
May 18, 201617G648$875,000$1,350—
Apr 26, 20164F2 BR—$1,465,000—+13.1%
Nov 4, 201510E1 BR · 1 BA698$865,000$1,239—
Oct 21, 201515C1 BR · 1 BA—$915,000——
Sep 10, 20158J2 BR1,030$1,637,500$1,590-3.4%
Sep 8, 20155C1 BR · 1 BA725$900,000$1,241-2.7%
Aug 19, 20151JK2 BR962$1,052,000$1,094+5.3%
Aug 13, 20153A1 BR676$945,000$1,398—
Jun 24, 20155DE3 BR · 2 BA1,500$2,250,000$1,500-9.8%
Jun 15, 201511E1 BR—$880,000—-2.1%
Jun 8, 20152C1 BR · 1 BA700$885,000$1,264+1.1%
Mar 13, 20151E1 BR · 1 BA—$775,000—-1.8%
Feb 13, 201511A1 BR · 1 BA750$905,000$1,207-2.2%
Mar 28, 20149D1 BR780$850,000$1,090—
Feb 27, 201410ABC3 BR · 3 BA2,100$2,650,000$1,262-10.9%
Aug 7, 201312A1 BR—$779,000——
Jun 27, 20131D1 BR660$610,000$924-9.6%
May 31, 201315D1 BR—$837,500—-3.2%
May 2, 201312F2 BR—$1,225,000——
Oct 24, 201217A675$750,000$1,111—
Aug 16, 20124G1 BR650$680,000$1,046-2.2%
Jul 30, 20121E1 BR—$650,000—-7.0%
Jul 16, 201216G1 BR650$735,000$1,131-1.3%
Mar 28, 201215F648$987,500$1,524—
Mar 15, 20129C1 BR · 1 BA676$650,000$962-14.4%
Jul 14, 20116G1 BR648$601,000$927-3.8%
Jul 12, 20115F2 BR927$1,055,000$1,138—
Jun 7, 20112H2 BR900$830,000$922-7.7%
May 20, 20112J2 BR1,250$1,245,000$996-4.2%
Mar 28, 20118D1 BR777$737,500$949—
Sep 24, 201011A1 BR750$757,500$1,010-2.3%
Aug 31, 20101E1 BR—$530,000—-4.5%
Jun 25, 20102F2 BR927$745,000$804—
Jun 16, 201010J2 BR1,250$1,375,000$1,100—
Jun 16, 20103C1 BR700$699,000$999—
Jun 4, 20102C1 BR700$650,000$929-3.7%
Feb 22, 201010B732$2,337,000$3,193—
Feb 15, 20108G1 BR700$668,000$954-6.6%
Dec 7, 20093E1 BR750$650,000$867-1.4%
Oct 26, 20099H2 BR—$875,000—-7.8%
May 8, 200916C1 BR700$635,000$907-2.3%
Jan 13, 200910F2 BR927$995,000$1,073-9.5%
Oct 31, 20086C1 BR—$680,000—-2.2%
Sep 24, 20082D1 BR780$650,000$833-7.0%
Jul 30, 200814F2 BR927$1,140,000$1,230-6.9%
Jun 24, 20085F2 BR927$1,050,000$1,133—
Apr 1, 200810J2 BR1,250$1,323,725$1,059-3.7%
Feb 27, 20083C1 BR700$711,757$1,017+1.8%
Aug 15, 20073E1 BR750$785,000$1,047+1.3%
Aug 14, 20079D1 BR780$780,000$1,000—
Aug 6, 20073D1 BR750$775,000$1,033—
Jul 26, 20074C1 BR676$715,000$1,058—
Jun 26, 20072C1 BR700$644,000$920-7.3%
Jun 5, 200715E1 BR · 1 BA698$810,000$1,160—
May 15, 20076J2 BR1,059$1,108,000$1,046+0.7%
Mar 30, 20073J2 BR—$1,145,000—+4.1%
Jan 30, 20078A1 BR · 1 BA675$725,000$1,074-1.4%
Jan 25, 20072J2 BR1,029$750,000$729—
Dec 20, 200616F2 BR927$999,999$1,079-11.4%
Dec 5, 200616J2 BR1,029$1,225,000$1,190-4.2%
Oct 16, 200615C1 BR676$650,000$962—
Oct 12, 20063D1 BR750$675,000$900-3.4%
Sep 26, 20065E698$650,000$931—
Sep 25, 200611A1 BR750$675,000$900-3.4%
Sep 21, 200610E1 BR700$790,162$1,129+2.0%
Sep 6, 200612E698$717,000$1,027—
Aug 31, 200616E1 BR—$795,000——
Aug 11, 200611F927$950,000$1,025—
Jan 30, 20065C1 BR725$705,000$972-1.4%
Dec 29, 20057F927$652,000$703—
Oct 26, 20053E1 BR750$720,000$960+5.9%
Sep 1, 20053B1 BR780$685,000$878—
Jul 15, 200511C1 BR · 1 BA676$702,593$1,039—
Jun 7, 20053H847$910,000$1,074—
May 20, 20057B1 BR732$685,000$936-1.4%
Apr 26, 20053E1 BR750$664,433$886+2.4%
Apr 13, 200511H847$918,000$1,084—
Apr 13, 200517B732$750,000$1,025—
Apr 13, 200510A675$610,000$904—
Feb 16, 200512A1 BR675$610,950$905—
Jan 18, 20059H2 BR847$929,000$1,097—
Jan 17, 20058H847$915,000$1,080—
Jan 10, 20052F2 BR927$745,000$804-12.2%
Jan 3, 20056G1 BR648$599,000$924—
Nov 5, 20048G1 BR700$625,000$893—
Oct 21, 200416C1 BR700$650,000$929+8.3%
Oct 7, 200414H847$929,000$1,097—
Jul 29, 200416A1 BR · 1 BA673$605,000$899—
Jul 12, 20041E1 BR—$530,000—-4.5%
Jun 29, 20048E1 BR725$650,827$898+8.7%
May 25, 20045C1 BR725$559,000$771—
Mar 5, 200415G1 BR—$551,000——
Dec 23, 200314F2 BR927$790,000$852+2.6%
Oct 2, 20032F2 BR927$745,000$804—
Aug 28, 200310F2 BR927$730,000$787-2.5%

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01182-7501) 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.

Buying or selling at The Gemstone?

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Buying here

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Selling here

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Corey Cohen, Principal · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com