Chelsea HouseRecorded sales & closing prices
130 West 19th Street, New York, NY 10011
143 recorded closings, 2006–2026. Sortable and searchable below.
- Recorded closings
- 143
- Date range
- 2006–2026
- Median $/sf
- $1,624
- Listing discount
- 2.7%
- Price range
- $801K – $4.58M
2026 · adjusted
median, from last ask
Price shift · median $/sf
1-Year
▲ +2%
Since 2022
▼ -5.7%
10-Year
▼ -11.1%
Since 2006
▲ +30.3%
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 complete recorded-sale history for Chelsea House, 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 2.7% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy here.
Price per square foot over time
139 sales with a known square footage, by closing date.
Building average$1,624/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 11–15 4 sales
$1,847/sf+14%
Floors 6–10 10 sales
$1,668/sf+3%
Floors 1–5 6 sales
$1,581/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 D 6 sales
$1,624/sf+0%
Line C 5 sales
$1,624/sf+0%
Line E 3 sales
$1,564/sf-4%
Recent closings
The building’s 10 most recent market sales.
| Date | Unit | Apartment | Price | $/sf | vs. Ask |
|---|---|---|---|---|---|
| May 4, 2026 | 6A | 2 BR · 2 BA · 1,586 sf | $2,497,500 | $1,575 | +0.1% |
| Feb 13, 2026 | 3E | 2 BR · 2 BA · 1,485 sf | $2,100,000 | $1,414 | -2.3% |
| Nov 3, 2025 | 8D | 1 BR · 2 BA · 1,338 sf | $2,020,000 | $1,510 | -12.0% |
| Oct 9, 2025 | 4E | 2 BR · 2 BA · 1,504 sf | $2,150,000 | $1,430 | -6.3% |
| Sep 30, 2025 | THA | 1 BR · 2 BA · 1,374 sf | $1,547,500 | $1,126 | -3.3% |
| Apr 1, 2025 | PH2B | 3 BR · 2 BA · 2,030 sf | $2,575,000 | $1,268 | -4.5% |
| Dec 6, 2024 | 3F | 2 BR · 2 BA · 1,250 sf | $1,835,000 | $1,468 | -0.8% |
| Dec 4, 2024 | PH1B | 3 BR · 2.5 BA · 2,180 sf | $2,800,000 | $1,284 | -17.2% |
| Nov 15, 2024 | 6D | 1 BR · 2 BA · 1,338 sf | $1,875,000 | $1,401 | — |
| Aug 6, 2024 | 6C | 1 BR · 2 BA · 1,100 sf | $1,650,000 | $1,500 | +3.4% |
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 45 repeat-trade lines; sort the table below by Unit to see every line’s full history.
THC · 1,914 sf+96%
$2,164,800 ($1,131/sf) 2006 → $2,175,000 ($1,136/sf) 2011 → $3,825,000 ($1,998/sf) 2016 → $4,250,000 ($2,220/sf) 2021
5A · 1,571 sf+55%
$1,624,109 ($1,034/sf) 2006 → $2,525,000 ($1,607/sf) 2018
11B · 1,493 sf+52%
$2,035,482 ($1,363/sf) 2006 → $3,100,000 ($2,076/sf) 2019
6A · 1,586 sf+51%
$1,649,565 ($1,040/sf) 2006 → $1,635,000 ($1,031/sf) 2009 → $2,497,500 ($1,575/sf) 2026
9E · 1,496 sf+51%
$1,868,489 ($1,249/sf) 2007 → $2,150,000 ($1,437/sf) 2013 → $2,825,000 ($1,888/sf) 2017
3F · 1,250 sf+47%
$1,247,356 ($998/sf) 2006 → $1,835,000 ($1,468/sf) 2024
THF · 1,558 sf+47%
$1,705,569 ($1,095/sf) 2007 → $2,500,000 ($1,605/sf) 2016
12B · 1,493 sf+45%
$2,138,325 ($1,432/sf) 2007 → $2,025,000 ($1,356/sf) 2007 → $3,100,000 ($2,076/sf) 2015
10C · 1,411 sf+41%
$2,211,369 ($1,567/sf) 2006 → $1,930,000 ($1,368/sf) 2009 → $3,150,000 ($2,232/sf) 2014 → $3,120,000 ($2,211/sf) 2018
10D · 1,444 sf+37%
$1,969,296 ($1,364/sf) 2006 → $2,695,000 ($1,866/sf) 2021
9C · 1,100 sf+36%
$1,475,434 ($1,341/sf) 2007 → $2,000,000 ($1,818/sf) 2016
5C · 1,100 sf+36%
$1,342,054 ($1,220/sf) 2006 → $1,825,000 ($1,659/sf) 2015
12C · 1,319 sf+35%
$1,893,945 ($1,436/sf) 2007 → $2,550,000 ($1,933/sf) 2022
4C · 1,100 sf+35%
$1,325,762 ($1,205/sf) 2006 → $1,725,000 ($1,568/sf) 2017 → $1,787,000 ($1,625/sf) 2021
3A · 1,571 sf+34%
$1,603,744 ($1,021/sf) 2006 → $2,150,000 ($1,369/sf) 2014
12A · 1,493 sf+32%
$2,138,325 ($1,432/sf) 2007 → $2,260,000 ($1,514/sf) 2007 → $2,645,000 ($1,772/sf) 2013 → $2,830,000 ($1,896/sf) 2023
8B · 1,100 sf+32%
$1,425,550 ($1,296/sf) 2007 → $1,780,000 ($1,618/sf) 2014 → $1,880,000 ($1,709/sf) 2021
9A · 1,586 sf+31%
$1,985,588 ($1,252/sf) 2007 → $2,600,000 ($1,639/sf) 2013
7D · 1,338 sf+27%
$1,578,288 ($1,180/sf) 2007 → $1,999,000 ($1,494/sf) 2014
8D · 1,338 sf+26%
$1,603,744 ($1,199/sf) 2007 → $1,510,000 ($1,129/sf) 2010 → $2,085,000 ($1,558/sf) 2017 → $2,020,000 ($1,510/sf) 2025
7F · 1,250 sf+26%
$1,451,006 ($1,161/sf) 2006 → $1,825,000 ($1,460/sf) 2014
8F · 1,250 sf+26%
$1,425,550 ($1,140/sf) 2007 → $1,797,500 ($1,438/sf) 2013
THA · 1,374 sf+24%
$1,247,356 ($908/sf) 2007 → $1,845,000 ($1,343/sf) 2015 → $1,547,500 ($1,126/sf) 2025
11C · 1,319 sf+24%
$1,893,945 ($1,436/sf) 2007 → $2,350,000 ($1,782/sf) 2020
Every recorded sale
Sort any column; filter by unit or keyword. Prices are the recorded transfer amount at the NYC Department of Finance.
143 recorded sales
| Apartment | ||||||
|---|---|---|---|---|---|---|
| May 4, 2026 | 6A | 2 BR · 2 BA | 1,586 | $2,497,500 | $1,575 | +0.1% |
| Feb 13, 2026 | 3E | 2 BR · 2 BA | 1,485 | $2,100,000 | $1,414 | -2.3% |
| Nov 3, 2025 | 8D | 1 BR · 2 BA | 1,338 | $2,020,000 | $1,510 | -12.0% |
| Oct 9, 2025 | 4E | 2 BR · 2 BA | 1,504 | $2,150,000 | $1,430 | -6.3% |
| Sep 30, 2025 | THA | 1 BR · 2 BA | 1,374 | $1,547,500 | $1,126 | -3.3% |
| Apr 24, 2025 | 11C | 2 BR · 2 BAnon-market transfer (excluded from $/sf & trends) | 1,319 | $1,175,000 | — | — |
| Apr 1, 2025 | PH2B | 3 BR · 2 BA | 2,030 | $2,575,000 | $1,268 | -4.5% |
| Dec 6, 2024 | 3F | 2 BR · 2 BA | 1,250 | $1,835,000 | $1,468 | -0.8% |
| Dec 4, 2024 | PH1B | 3 BR · 2.5 BA | 2,180 | $2,800,000 | $1,284 | -17.2% |
| Nov 15, 2024 | 6D | 1 BR · 2 BA | 1,338 | $1,875,000 | $1,401 | — |
| Aug 6, 2024 | 6C | 1 BR · 2 BA | 1,100 | $1,650,000 | $1,500 | +3.4% |
| Nov 9, 2023 | 12D | 2 BR · 2 BA | 1,350 | $2,250,000 | $1,667 | -10.9% |
| Jul 11, 2023 | PH1A | 3 BR · 2.5 BA | 2,237 | $4,580,000 | $2,047 | +6.5% |
| Feb 10, 2023 | 12A | 2 BR · 2.5 BA | 1,493 | $2,830,000 | $1,896 | +1.3% |
| May 2, 2022 | 12C | 2 BR · 2 BA | 1,319 | $2,550,000 | $1,933 | -7.3% |
| Dec 13, 2021 | 9D | 1 BR · 2 BA | 1,338 | $1,950,000 | $1,457 | -2.3% |
| Oct 27, 2021 | THC | 3 BR · 2.5 BA | 1,914 | $4,250,000 | $2,220 | — |
| Oct 17, 2021 | 3E | 2 BR · 2 BA | 1,496 | $1,730,000 | $1,156 | — |
| Sep 20, 2021 | 8B | 1 BR · 2 BA | 1,100 | $1,880,000 | $1,709 | -0.8% |
| Aug 2, 2021 | 4D | 2 BR · 2 BA | 1,338 | $2,100,000 | $1,570 | — |
| Jun 30, 2021 | 10B | 3 BR · 2 BA | 1,714 | $2,860,000 | $1,669 | -4.5% |
| Jun 30, 2021 | 10D | 2 BR · 2 BA | 1,444 | $2,695,000 | $1,866 | — |
| Apr 2, 2021 | 9F | 2 BR · 2 BA | 1,250 | $1,725,000 | $1,380 | -6.8% |
| Mar 12, 2021 | 4C | 2 BR · 2 BA | 1,100 | $1,787,000 | $1,625 | -3.4% |
| Jan 14, 2021 | 8C | 2 BR · 2 BA | 1,100 | $1,650,000 | $1,500 | -2.7% |
| Feb 3, 2020 | 11C | 2 BR · 2 BA | 1,319 | $2,350,000 | $1,782 | -9.6% |
| Jul 30, 2019 | 6B | 1 BR · 2 BA | 1,100 | $1,650,000 | $1,500 | -2.7% |
| Jun 21, 2019 | 11B | 2 BR · 2.5 BA | 1,493 | $3,100,000 | $2,076 | -5.9% |
| Mar 20, 2019 | F7 | 2 BR · 2 BA | 1,250 | $1,800,000 | $1,440 | -4.0% |
| Aug 29, 2018 | 10C | 2 BR · 2 BA | 1,411 | $3,120,000 | $2,211 | -6.9% |
| Jul 19, 2018 | THD | 2 BR | 1,652 | $2,375,000 | $1,438 | -8.5% |
| May 17, 2018 | 5A | 3 BR · 2 BA | 1,571 | $2,525,000 | $1,607 | -1.0% |
| Dec 8, 2017 | 3E | 2 BR | 1,496 | $2,300,000 | $1,537 | -1.1% |
| Jul 12, 2017 | 4C | 2 BR · 2 BA | 1,100 | $1,725,000 | $1,568 | — |
| Jun 29, 2017 | 9E | 3 BR | 1,496 | $2,825,000 | $1,888 | — |
| Jun 2, 2017 | 8D | 1 BR | 1,338 | $2,085,000 | $1,558 | -0.7% |
| Oct 5, 2016 | 9C | 1 BR · 2 BA | 1,100 | $2,000,000 | $1,818 | -8.0% |
| Aug 5, 2016 | THF | 2 BR | 1,588 | $2,500,000 | $1,574 | -9.1% |
| May 6, 2016 | THC | 3 BR · 2.5 BA | 1,914 | $3,825,000 | $1,998 | -10.0% |
| Dec 2, 2015 | 5C | 1 BR | 1,100 | $1,825,000 | $1,659 | +1.4% |
| Oct 30, 2015 | 4D | 1 BR · 2 BA | 1,338 | $2,150,000 | $1,607 | -2.1% |
| Sep 30, 2015 | THA | 1 BR | 1,374 | $1,845,000 | $1,343 | -5.4% |
| Mar 13, 2015 | 12B | 2 BR · 2 BA | 1,493 | $3,100,000 | $2,076 | — |
| Sep 11, 2014 | 7F | 2 BR | 1,250 | $1,825,000 | $1,460 | -18.9% |
| Sep 5, 2014 | 3A | 2 BR · 2 BA | 1,571 | $2,150,000 | $1,369 | -2.3% |
| Jul 31, 2014 | TH/E | 3 BR | 1,926 | $3,400,000 | $1,765 | +1.5% |
| Jul 9, 2014 | 12D | 2 BR | 1,350 | $2,575,000 | $1,907 | -4.5% |
| Jul 2, 2014 | 8B | 1 BR · 2 BA | 1,100 | $1,780,000 | $1,618 | — |
| Jun 2, 2014 | 10C | 2 BR · 2 BA | 1,411 | $3,150,000 | $2,232 | +5.0% |
| May 13, 2014 | 7D | 1 BR | 1,338 | $1,999,000 | $1,494 | -4.6% |
| Nov 4, 2013 | 9A | 2 BR | 1,586 | $2,600,000 | $1,639 | +2.0% |
| Jul 31, 2013 | 8E | 3 BR | — | $2,100,000 | — | -8.5% |
| Jun 25, 2013 | 9E | 3 BR | 1,496 | $2,150,000 | $1,437 | — |
| Jun 21, 2013 | 12A | 2 BR | — | $2,645,000 | — | +1.9% |
| Jun 5, 2013 | THD | 2 BR | — | $2,330,000 | — | -2.1% |
| May 8, 2013 | 9D | 1 BR | 1,338 | $1,825,000 | $1,364 | -2.7% |
| May 2, 2013 | 8F | 2 BR | 1,250 | $1,797,500 | $1,438 | — |
| Aug 21, 2012 | 3D | 2 BR | 1,338 | $1,610,000 | $1,203 | -2.4% |
| May 15, 2012 | 6F | 1,250 | $1,356,000 | $1,085 | — | |
| Apr 30, 2012 | 7E | 2 BR | 1,496 | $1,655,000 | $1,106 | -2.4% |
| Apr 19, 2012 | 9F | 2 BR · 2 BA | 1,250 | $1,475,000 | $1,180 | — |
| Feb 16, 2012 | 10A | 3 BR | 1,728 | $2,700,000 | $1,563 | -1.8% |
| Nov 9, 2011 | 7A | 3 BR | 1,586 | $1,875,000 | $1,182 | -1.1% |
| Apr 7, 2011 | THC | 3 BR | 1,914 | $2,175,000 | $1,136 | -4.4% |
| Jan 25, 2011 | 7B | 1 BR | 1,100 | $1,231,000 | $1,119 | -1.5% |
| Dec 21, 2010 | 4F | 1 BR | 1,250 | $1,350,000 | $1,080 | -3.5% |
| Jun 18, 2010 | 8D | 1 BR | 1,338 | $1,510,000 | $1,129 | -4.1% |
| Jan 5, 2010 | 7A | 3 BR | 1,586 | $1,750,000 | $1,103 | -2.5% |
| Dec 5, 2009 | 12D | 2 BR | 1,350 | $1,850,000 | $1,370 | — |
| Dec 5, 2009 | 7E | 2 BR | 1,496 | $1,650,000 | $1,103 | — |
| Dec 4, 2009 | 5D | 2 BR | 1,338 | $1,550,000 | $1,158 | — |
| Dec 1, 2009 | 10C | 2 BR | 1,411 | $1,930,000 | $1,368 | -3.5% |
| Oct 1, 2009 | 6A | 2 BR | 1,586 | $1,635,000 | $1,031 | -5.2% |
| Jul 3, 2008 | 6B | 2 BR | 1,100 | $1,450,000 | $1,318 | -1.7% |
| Oct 26, 2007 | PH1B | 3 BR | 2,180 | $3,594,423 | $1,649 | — |
| Sep 20, 2007 | 7D | 1 BR | 1,338 | $1,578,288 | $1,180 | — |
| Sep 17, 2007 | 10A | 3 BR | 1,728 | $2,545,625 | $1,473 | — |
| Sep 4, 2007 | 8C | 2 BR · 2 BA | 1,100 | $1,421,986 | $1,293 | — |
| Aug 30, 2007 | 8E | 3 BR | 1,496 | $1,780,000 | $1,190 | -15.2% |
| Aug 30, 2007 | 12A | 2 BR | 1,493 | $2,260,000 | $1,514 | — |
| Aug 30, 2007 | PH2A | 3 BR | 2,084 | $4,188,000 | $2,010 | — |
| Aug 30, 2007 | THB | 1,197 | $1,523,557 | $1,273 | — | |
| Aug 29, 2007 | 12B | 2 BR | 1,493 | $2,025,000 | $1,356 | +1.3% |
| Aug 8, 2007 | 7C | 1,100 | $1,425,550 | $1,296 | — | |
| Jul 27, 2007 | THA | 1 BR | 1,374 | $1,247,356 | $908 | — |
| Jul 25, 2007 | 3C | 1,100 | $1,342,054 | $1,220 | — | |
| Jul 18, 2007 | 9C | 1 BR | 1,100 | $1,475,434 | $1,341 | — |
| Jul 16, 2007 | 11C | 2 BR · 2 BA | 1,319 | $1,893,945 | $1,436 | — |
| Jun 29, 2007 | — | 3 BR | 1,926 | $2,443,800 | $1,269 | +1.8% |
| Jun 29, 2007 | 9B | 2 BR | 1,100 | $1,501,919 | $1,365 | — |
| Jun 25, 2007 | 12C | 2 BR · 2 BA | 1,319 | $1,893,945 | $1,436 | — |
| Jun 22, 2007 | 9F | 2 BR · 2 BA | 1,250 | $1,476,463 | $1,181 | — |
| Jun 5, 2007 | PH2B | 3 BR · 2 BA | 2,030 | $3,156,575 | $1,555 | — |
| May 29, 2007 | 6B | 2 BR | 1,100 | $1,425,550 | $1,296 | +1.8% |
| May 24, 2007 | PH2A | 3 BR | 2,084 | $3,512,963 | $1,686 | — |
| May 18, 2007 | 8D | 1 BR | 1,338 | $1,603,744 | $1,199 | — |
| May 10, 2007 | 8F | 2 BR | 1,250 | $1,425,550 | $1,140 | -7.1% |
| May 10, 2007 | 9A | 2 BR | 1,586 | $1,985,588 | $1,252 | -5.4% |
| May 3, 2007 | 8B | 1 BR · 2 BA | 1,100 | $1,425,550 | $1,296 | — |
| May 2, 2007 | 3E | 3 BR | 1,496 | $1,730,000 | $1,156 | -3.1% |
| Apr 30, 2007 | 12A | 2 BR | 1,493 | $2,138,325 | $1,432 | — |
| Apr 26, 2007 | 12B | 2 BR | 1,493 | $2,138,325 | $1,432 | — |
| Apr 16, 2007 | 9D | 1 BR | 1,338 | $1,628,122 | $1,217 | +1.8% |
| Apr 9, 2007 | 10B | 3 BR | 1,714 | $2,392,888 | $1,396 | -1.1% |
| Mar 30, 2007 | PH1A | 3 BR · 2.5 BA | 2,237 | $3,767,525 | $1,684 | — |
| Mar 16, 2007 | 8E | 3 BR | 1,496 | $1,812,485 | $1,212 | — |
| Mar 1, 2007 | 4B | 2 BR | 1,100 | $1,359,364 | $1,236 | — |
| Feb 23, 2007 | 11A | 2 BR | 1,493 | $2,338,920 | $1,567 | +1.8% |
| Jan 19, 2007 | THF | 2 BR | 1,558 | $1,705,569 | $1,095 | — |
| Jan 16, 2007 | 8A | 1,586 | $1,787,029 | $1,127 | — | |
| Jan 12, 2007 | 9E | 3 BR | 1,496 | $1,868,489 | $1,249 | +1.8% |
| Jan 8, 2007 | 5D | 2 BR | 1,338 | $1,578,288 | $1,180 | — |
| Dec 27, 2006 | 3D | 2 BR | 1,338 | $1,451,006 | $1,084 | +1.8% |
| Dec 7, 2006 | 10C | 2 BR | 1,411 | $2,211,369 | $1,567 | — |
| Nov 28, 2006 | 12D | 2 BR | 1,350 | $1,883,763 | $1,395 | — |
| Nov 15, 2006 | 4A | 3 BR | 1,571 | $1,603,744 | $1,021 | -5.7% |
| Nov 14, 2006 | THD | 2 BR | 1,652 | $2,039,555 | $1,235 | — |
| Nov 13, 2006 | THC | 3 BR | 1,914 | $2,164,800 | $1,131 | — |
| Nov 9, 2006 | 3A | 2 BR | 1,571 | $1,603,744 | $1,021 | — |
| Oct 26, 2006 | 5A | 3 BR · 2 BA | 1,571 | $1,624,109 | $1,034 | — |
| Oct 26, 2006 | 11D | 1,350 | $1,849,142 | $1,370 | — | |
| Oct 24, 2006 | 10D | 2 BR · 2 BA | 1,444 | $1,969,296 | $1,364 | — |
| Oct 12, 2006 | 11B | 2 BR · 2.5 BA | 1,493 | $2,035,482 | $1,363 | — |
| Oct 11, 2006 | 7A | 3 BR | 1,586 | $1,705,569 | $1,075 | — |
| Oct 4, 2006 | 6C | 1 BR · 2 BA | 1,100 | $1,443,380 | $1,312 | — |
| Oct 4, 2006 | 6D | 1 BR | 1,338 | $1,647,370 | $1,231 | — |
| Sep 29, 2006 | 6E | 2 BR · 2 BA | 1,496 | $1,603,744 | $1,072 | — |
| Sep 28, 2006 | 3E | 3 BR | 1,496 | $1,476,463 | $987 | -4.7% |
| Sep 28, 2006 | 5E | 1,496 | $1,526,357 | $1,020 | — | |
| Sep 19, 2006 | 7E | 2 BR | 1,496 | $1,680,113 | $1,123 | — |
| Sep 15, 2006 | 7F | 2 BR | 1,250 | $1,451,006 | $1,161 | — |
| Sep 8, 2006 | 6A | 2 BR | 1,586 | $1,649,565 | $1,040 | — |
| Sep 8, 2006 | 6F | 1,250 | $1,351,218 | $1,081 | — | |
| Sep 7, 2006 | 4E | 3 BR | 1,496 | $1,526,357 | $1,020 | — |
| Sep 7, 2006 | 3G | 697 | $801,006 | $1,149 | — | |
| Aug 25, 2006 | 7B | 1 BR | 1,100 | $1,454,061 | $1,322 | — |
| Aug 24, 2006 | 4C | 2 BR · 2 BA | 1,100 | $1,325,762 | $1,205 | — |
| Aug 23, 2006 | 3F | 2 BR · 2 BA | 1,250 | $1,247,356 | $998 | — |
| Aug 23, 2006 | 4F | 1 BR | 1,250 | $1,267,721 | $1,014 | — |
| Aug 23, 2006 | 5F | 1,250 | $1,287,068 | $1,030 | — | |
| Aug 22, 2006 | 4D | 1 BR · 2 BA | 1,338 | $1,424,532 | $1,065 | — |
| Aug 22, 2006 | 5C | 1 BR | 1,100 | $1,342,054 | $1,220 | — |
| Aug 17, 2006 | 5B | 1,100 | $1,342,054 | $1,220 | — |
Sales sourced from NYC Department of Finance recorded transfers (BBL 1-00794-7501) 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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