Manhattan condos · below 96th $1,632/sf ▴3%Manhattan co-ops · below 96th $271K/room ▴4%Central Park perimeterPark Ave $433K/room ▴3%CPW $482K/roomFifth Ave $529K/roomBillionaires' Row $3,350/sfFiDi $1,255/sf ▾3%
Full index →

Back to The O'Neill Building building profile

655 Sixth Avenue (The O'Neill Building)Recorded sales & closing prices

655 Sixth Avenue, New York, NY 10010

114 recorded closings, 2006–2026. Sortable and searchable below.

Own an apartment at The O'Neill Building?
Enter your apartment to see its recorded sale history and today’s estimate.
Recorded closings
114
Date range
2006–2026
Median $/sf
$1,747
2026 to date · adjusted · 3 sales
Listing discount
2.9%
median, from last ask
Monthly carry/sf
$2.99
≈ $3,677/mo · last 2 yrs
Price range
$942K – $8.15M
Price shift · median $/sf · floor-adjusted
Since 2006
▲ +44.2%
10-Year
▼ -6.8%
Since 2022
▲ +7.8%
1-Year
▲ +3.8%

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 complete recorded-sale history for The O'Neill Building, 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 2.9% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.

Price per square foot over time

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

$909$1,488$2,067'06'10'14'18'22'262K · $1,126/sf · 20062D · $1,198/sf · 20063A · $971/sf · 20063B · $1,155/sf · 20063C · $1,386/sf · 20062A · $1,062/sf · 20063K · $1,010/sf · 20072M · $1,202/sf · 20073L · $1,231/sf · 20073D · $1,206/sf · 20072B · $1,271/sf · 20073M · $1,013/sf · 20073F · $1,329/sf · 20072J · $1,151/sf · 20073E · $1,243/sf · 20072L · $1,216/sf · 20072E · $1,173/sf · 20073C · $1,531/sf · 20074C · $1,187/sf · 20074D · $1,180/sf · 20075A · $1,275/sf · 20075D · $1,309/sf · 20074J · $1,087/sf · 20075L · $1,202/sf · 20075F · $1,158/sf · 20075C · $1,195/sf · 20074H · $1,081/sf · 20075E · $1,303/sf · 20074B · $1,262/sf · 20074E · $1,303/sf · 20073G · $1,199/sf · 20072G · $1,158/sf · 20074A · $1,238/sf · 20074F · $1,108/sf · 20075K · $1,138/sf · 20072H · $1,297/sf · 20072L · $1,245/sf · 20074K · $1,135/sf · 20073H · $1,267/sf · 20075J · $1,096/sf · 20075K · $1,372/sf · 20075B · $1,243/sf · 20072F · $1,189/sf · 20075H · $1,174/sf · 20074G · $1,260/sf · 2007PHB · $1,479/sf · 20075J · $1,321/sf · 20072F · $1,090/sf · 2007PHC · $1,339/sf · 20074A · $1,305/sf · 20075L · $1,256/sf · 2007PHE · $1,304/sf · 20074 · $1,391/sf · 2008PHB · $1,691/sf · 20085J · $1,468/sf · 20085G · $1,250/sf · 20085G · $1,152/sf · 20094F · $1,032/sf · 20094E · $1,279/sf · 20102A · $1,018/sf · 20102G · $1,340/sf · 20104G · $1,282/sf · 20105F · $1,117/sf · 20112M · $1,200/sf · 20113B · $1,258/sf · 20112E · $1,281/sf · 20113M · $1,250/sf · 20113F · $1,044/sf · 2011TWOB · $1,096/sf · 20113L · $1,280/sf · 20122H · $1,486/sf · 20123G · $1,377/sf · 20124K · $1,469/sf · 20134A · $1,503/sf · 20133A · $1,649/sf · 20135J · $1,659/sf · 20133C · $1,852/sf · 20145G · $1,136/sf · 20144C · $2,005/sf · 20154J · $1,875/sf · 20153A · $1,773/sf · 20163E · $1,832/sf · 20165H · $1,845/sf · 20162L · $1,753/sf · 20164G · $1,976/sf · 20172A · $1,757/sf · 20172H · $1,753/sf · 20185G · $1,943/sf · 20185H · $1,946/sf · 20182J · $1,891/sf · 20185B · $1,706/sf · 20185D · $1,661/sf · 20183G · $1,447/sf · 20195E · $1,450/sf · 20195F · $1,600/sf · 20194E · $1,322/sf · 20195K · $1,575/sf · 20204G · $1,701/sf · 20203K · $1,575/sf · 20205J · $1,551/sf · 20213G · $1,767/sf · 20223L · $1,745/sf · 20225E · $1,279/sf · 20244H · $1,665/sf · 20245F · $1,665/sf · 20255K · $1,717/sf · 20252E · $1,707/sf · 20252K · $1,628/sf · 20265D · $1,747/sf · 20262E · $1,821/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 floor-standardized (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.
Median, 2026 to date (floor-adjusted)$1,747/sfevery bar sits above or below this · 0%

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.

Line E 3 sales
+1%
Line K 4 sales
-4%

Recent closings

The building’s 10 most recent market sales.

DateUnitApartmentPrice$/sfvs. Ask
Sep 23, 20262E2 BR · 2.5 BA · 1,620 sf$2,950,000$1,821-1.6%
Sep 10, 20265D2 BR · 2.5 BA · 1,517 sf$2,650,000$1,747-1.7%
Jan 13, 20262K1,022 sf$1,664,000$1,628—
Aug 7, 20252E2 BR · 2.5 BA · 1,620 sf$2,765,000$1,707-3.0%
Apr 29, 20255K1 BR · 1.5 BA · 984 sf$1,690,000$1,717-0.3%
Apr 22, 20255F2 BR · 2 BA · 1,231 sf$2,050,000$1,665+0.0%
Jul 2, 20244H1 BR · 1.5 BA · 1,003 sf$1,670,000$1,665-1.5%
Jun 14, 20245E2 BR · 2.5 BA · 2,345 sf$3,000,000$1,279-33.3%
Jun 30, 20223L1 BR · 984 sf$1,717,000$1,745—
May 9, 20223G1 BR · 2 BA · 1,231 sf$2,175,000$1,767+1.2%

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 34 repeat-trade lines; sort the table below by Unit to see every line’s full history.

3A · 970 sf+83%
$941,881 ($971/sf) 2006 → $1,600,000 ($1,649/sf) 2013 → $1,720,000 ($1,773/sf) 2016
4J · 984 sf+73%
$1,069,162 ($1,087/sf) 2007 → $1,845,000 ($1,875/sf) 2015
4C · 1,321 sf+69%
$1,568,105 ($1,187/sf) 2007 → $2,648,000 ($2,005/sf) 2015
5H · 2,168 sf+66%
$2,545,625 ($1,174/sf) 2007 → $4,000,000 ($1,845/sf) 2016 → $4,220,000 ($1,946/sf) 2018
2A · 1,366 sf+65%
$1,451,006 ($1,062/sf) 2006 → $1,390,000 ($1,018/sf) 2010 → $2,400,000 ($1,757/sf) 2017
2J · 2,168 sf+64%
$2,494,712 ($1,151/sf) 2007 → $4,100,000 ($1,891/sf) 2018
3K · 1,003 sf+56%
$1,013,158 ($1,010/sf) 2007 → $1,580,000 ($1,575/sf) 2020
2E · 1,620 sf+55%
$1,909,218 ($1,173/sf) 2007 → $2,075,000 ($1,281/sf) 2011 → $2,765,000 ($1,707/sf) 2025 → $2,950,000 ($1,821/sf) 2026
5G · 1,364 sf+55%
$1,705,568 ($1,250/sf) 2008 → $1,550,000 ($1,152/sf) 2009 → $1,550,000 ($1,136/sf) 2014 → $2,650,000 ($1,943/sf) 2018
4H · 1,003 sf+54%
$1,084,436 ($1,081/sf) 2007 → $1,670,000 ($1,665/sf) 2024
5K · 984 sf+51%
$1,120,075 ($1,138/sf) 2007 → $1,350,000 ($1,372/sf) 2007 → $1,550,000 ($1,575/sf) 2020 → $1,690,000 ($1,717/sf) 2025
3G · 1,231 sf+47%
$1,476,462 ($1,199/sf) 2007 → $1,695,000 ($1,377/sf) 2012 → $1,825,000 ($1,447/sf) 2019 → $2,175,000 ($1,767/sf) 2022
3E · 1,597 sf+47%
$1,985,587 ($1,243/sf) 2007 → $2,925,000 ($1,832/sf) 2016
2K · 1,022 sf+45%
$1,150,622 ($1,126/sf) 2006 → $1,664,000 ($1,628/sf) 2026
2L · 984 sf+44%
$1,196,443 ($1,216/sf) 2007 → $1,225,000 ($1,245/sf) 2007 → $1,725,000 ($1,753/sf) 2016
3L · 984 sf+42%
$1,211,717 ($1,231/sf) 2007 → $1,259,496 ($1,280/sf) 2012 → $1,717,000 ($1,745/sf) 2022
5B · 2,989 sf+37%
$3,716,613 ($1,243/sf) 2007 → $5,100,000 ($1,706/sf) 2018
4G · 1,346 sf+35%
$1,695,386 ($1,260/sf) 2007 → $1,725,000 ($1,282/sf) 2010 → $2,660,000 ($1,976/sf) 2017 → $2,290,000 ($1,701/sf) 2020
2H · 1,346 sf+35%
$1,746,298 ($1,297/sf) 2007 → $2,000,000 ($1,486/sf) 2012 → $2,360,000 ($1,753/sf) 2018
3C · 2,057 sf+34%
$2,851,100 ($1,386/sf) 2006 → $3,150,000 ($1,531/sf) 2007 → $3,810,000 ($1,852/sf) 2014
5D · 1,517 sf+33%
$1,985,587 ($1,309/sf) 2007 → $2,519,136 ($1,661/sf) 2018 → $2,650,000 ($1,747/sf) 2026
4K · 987 sf+29%
$1,120,075 ($1,135/sf) 2007 → $1,450,000 ($1,469/sf) 2013
3M · 1,000 sf+25%
$999,921 ($1,013/sf) 2007 → $1,250,000 ($1,250/sf) 2011
4A · 958 sf+21%
$1,186,261 ($1,238/sf) 2007 → $1,250,000 ($1,305/sf) 2007 → $1,440,000 ($1,503/sf) 2013

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.

114 recorded sales
Apartment
Sep 23, 20262E2 BR · 2.5 BA1,620$2,950,000$1,821-1.6%
Sep 10, 20265D2 BR · 2.5 BA1,517$2,650,000$1,747-1.7%
Jan 13, 20262K1,022$1,664,000$1,628—
Aug 7, 20252E2 BR · 2.5 BA1,620$2,765,000$1,707-3.0%
Apr 29, 20255K1 BR · 1.5 BA984$1,690,000$1,717-0.3%
Apr 22, 20255F2 BR · 2 BA1,231$2,050,000$1,665+0.0%
Jul 2, 20244H1 BR · 1.5 BA1,003$1,670,000$1,665-1.5%
Jun 14, 20245E2 BR · 2.5 BA2,345$3,000,000$1,279-33.3%
Jun 30, 20223L1 BR984$1,717,000$1,745—
May 9, 20223G1 BR · 2 BA1,231$2,175,000$1,767+1.2%
Jan 29, 20215J1 BR · 1.5 BA1,022$1,585,000$1,551-2.5%
Jun 23, 20203K1 BR · 1.5 BA1,003$1,580,000$1,575-2.8%
Jun 10, 20204G2 BR · 2 BA1,346$2,290,000$1,701-13.6%
Jan 27, 20205K1 BR · 1.5 BA984$1,550,000$1,575-2.8%
Dec 6, 20194E2 BR · 2.5 BA2,345$3,100,000$1,322-11.4%
Dec 4, 20195F2 BR · 2 BA1,231$1,969,500$1,600+0.0%
Jun 27, 20195E2 BR · 2.5 BA2,345$3,400,000$1,450-27.7%
Feb 15, 20193G1 BR · 2 BA1,261$1,825,000$1,447-18.9%
Sep 26, 20185D2 BR · 2.5 BA1,517$2,519,136$1,661-15.9%
Jul 31, 20185B3 BR2,989$5,100,000$1,706-7.2%
Jul 16, 20182J3 BR · 2.5 BA2,168$4,100,000$1,891-8.8%
Jul 13, 20185H3 BR · 2.5 BA2,168$4,220,000$1,946-0.7%
Mar 14, 20185G2 BR · 2 BA1,364$2,650,000$1,943-11.5%
Feb 22, 20182H2 BR1,346$2,360,000$1,753-4.6%
Dec 21, 20172A1 BR1,366$2,400,000$1,757—
Nov 14, 20174G2 BR1,346$2,660,000$1,976—
Oct 14, 20162L1 BR984$1,725,000$1,753-4.2%
Sep 12, 20165H3 BR · 2.5 BA2,168$4,000,000$1,845-8.0%
Jun 27, 20163E2 BR1,597$2,925,000$1,832-2.3%
May 20, 20163A1 BR970$1,720,000$1,773-4.2%
Dec 15, 20154J1 BR · 1.5 BA984$1,845,000$1,875+2.6%
May 19, 20154C1,321$2,648,000$2,005—
Apr 15, 20145G2 BR1,364$1,550,000$1,136—
Mar 18, 20143C2 BR2,057$3,810,000$1,852-9.2%
Dec 17, 20135J1 BR · 1.5 BA1,022$1,695,000$1,659+0.0%
Sep 12, 20133A1 BR970$1,600,000$1,649+3.2%
Sep 3, 20135L1 BRoutside the market statistics (eligibility screen)—$1,590,000—+0.0%
Aug 9, 20134A1 BR · 1.5 BA958$1,440,000$1,503-3.4%
Jun 24, 20134K1 BR987$1,450,000$1,469—
Dec 3, 20123G1 BR1,231$1,695,000$1,377+0.0%
Oct 30, 20122Dnon-market transfer (excluded from $/sf & trends)1,266$999,995——
Jul 3, 20122H2 BR1,346$2,000,000$1,486-4.5%
Jun 27, 20122Cnon-market transfer (excluded from $/sf & trends)1,304$600,000——
Apr 24, 20123L1 BR984$1,259,496$1,280-2.7%
Dec 15, 2011TWOB1 BR1,118$1,225,000$1,096-5.8%
Oct 24, 20113F2,376$2,480,000$1,044—
Jul 19, 20113M1 BR1,000$1,250,000$1,250+4.6%
Jul 5, 20112E2 BR1,620$2,075,000$1,281-5.5%
Feb 28, 20113B1 BR970$1,220,000$1,258-4.3%
Feb 17, 20112M1 BR1,000$1,200,000$1,200+2.1%
Feb 14, 20115F1 BR1,231$1,375,000$1,117-3.5%
Sep 15, 20104G2 BR1,346$1,725,000$1,282-5.5%
Aug 16, 20102G1,231$1,650,000$1,340—
Jul 12, 20102A1 BR1,366$1,390,000$1,018-7.0%
Jun 23, 20104E2 BR2,345$3,000,000$1,279+0.2%
Dec 21, 20094F1 BR1,231$1,270,000$1,032-1.9%
Nov 18, 20095G2 BR1,346$1,550,000$1,152-26.0%
Nov 17, 20085G2 BR1,364$1,705,568$1,250-18.6%
Oct 21, 20085J1 BR1,022$1,500,000$1,468-6.0%
Oct 15, 2008PHB3 BR · 3.5 BA4,819$8,150,000$1,691-1.2%
Apr 28, 200841 BR1,003$1,395,000$1,391+0.0%
Dec 27, 2007PHE2,498$3,258,400$1,304—
Dec 19, 20075L1 BR · 2 BA987$1,240,000$1,256-0.8%
Dec 7, 20074A1 BR · 1.5 BA958$1,250,000$1,305-9.1%
Nov 7, 2007PHC4,117$5,513,283$1,339—
Nov 2, 20072F2 BR · 2.5 BA2,522$2,749,275$1,090-1.6%
Oct 11, 20075J1 BR1,022$1,350,000$1,321-3.2%
Oct 10, 2007PHB3 BR4,819$7,127,750$1,479-9.8%
Oct 5, 2007PHAnon-market transfer (excluded from $/sf & trends)5,034$7,346,673——
Sep 20, 20074G2 BR1,346$1,695,386$1,260—
Sep 17, 20075H3 BR · 2.5 BA2,168$2,545,625$1,174—
Sep 12, 20072F2 BR · 2.5 BA2,350$2,795,000$1,189+0.0%
Aug 28, 20075B3 BR2,989$3,716,613$1,243-2.2%
Aug 27, 20075K1 BR984$1,350,000$1,372—
Aug 6, 20075J1 BR1,022$1,120,075$1,096—
Aug 2, 20072L1 BR984$1,225,000$1,245-2.0%
Aug 2, 20074K1 BR987$1,120,075$1,135—
Aug 2, 20073H2 BR1,346$1,705,568$1,267—
Aug 1, 20072H2 BR1,346$1,746,298$1,297—
Jul 27, 20075K1 BR984$1,120,075$1,138—
Jul 17, 20074F1 BR1,231$1,364,455$1,108—
Jul 16, 20073G1 BR1,231$1,476,462$1,199—
Jul 16, 20072G1,231$1,425,550$1,158—
Jul 16, 20074A1 BR · 1.5 BA958$1,186,261$1,238—
Jul 13, 20075E2 BR · 2.5 BA2,345$3,054,750$1,303—
Jul 13, 20074B3 BR · 3.5 BA2,989$3,772,616$1,262—
Jul 13, 20074E2 BR2,345$3,054,750$1,303—
Jul 12, 20075C1,321$1,578,287$1,195—
Jul 12, 20074H1 BR1,003$1,084,436$1,081—
Jul 11, 20075F1 BR1,231$1,425,550$1,158—
Jul 10, 20074J1 BR · 1.5 BA984$1,069,162$1,087—
Jul 10, 20075L1 BR · 2 BA987$1,186,261$1,202—
Jul 9, 20075D2 BR · 2.5 BA1,517$1,985,587$1,309—
Jul 2, 20075A958$1,221,900$1,275—
Jun 29, 20074D1,597$1,883,762$1,180—
Jun 25, 20074C1,321$1,568,105$1,187—
Jun 13, 20072E2 BR1,628$1,909,218$1,173—
Jun 13, 20073C2 BR2,057$3,150,000$1,531-1.4%
May 11, 20072L1 BR984$1,196,443$1,216—
Mar 12, 20073E2 BR1,597$1,985,587$1,243—
Feb 27, 20072J3 BR2,168$2,494,712$1,151-3.1%
Feb 15, 20073F2,376$3,156,575$1,329—
Jan 8, 20073M1 BR987$999,921$1,013—
Jan 4, 20072B1,118$1,420,458$1,271—
Jan 3, 20072M1 BR987$1,186,261$1,202—
Jan 3, 20073L1 BR984$1,211,717$1,231—
Jan 3, 20073D1,266$1,527,375$1,206—
Jan 2, 20073K1 BR1,003$1,013,158$1,010—
Dec 29, 20062A1 BR1,366$1,451,006$1,062—
Dec 28, 20063C2 BR2,057$2,851,100$1,386—
Dec 26, 20063B1 BR970$1,120,075$1,155—
Dec 21, 20062D1,266$1,517,192$1,198—
Dec 21, 20063A1 BR970$941,881$971—
Dec 14, 20062K1,022$1,150,622$1,126—
Sources, exclusions and how these figures are computed

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-00796-7504; 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.

Buying or selling at The O'Neill Building?

Put this data to work.

Buying here

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.

Selling here

Price to the building’s real trajectory, not a guess — we’ll position your line against its true comps to maximize the outcome.

Corey Cohen, Licensed Associate Real Estate Broker · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com