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2121A Mason St

Condo, 1 bd, 1 ba, 1,210 sqft, built 2023

Today’s estimate uses 1,210 sqft and the home’s latest facts. It does not estimate the home’s value at a past sale date.

0.2 mi0.3 mi$1.38M$1.70M$1.48M$1.96M$1.23M$2.03M$2.19M$1.17M$1.40M$1.01M$1.29M$2.31M$1.22M$1.74M$1.56M$1.61M$1.82M$1.42M$1.86M$2.91M$883K$2.67M$2.45M2121A Mason StBlock 0065, Lot 06300.25 miN650 Chestnut St APT 309: sold for $1,465,000 on 2026-09-02, 0.07 mi away600 Chestnut St APT 207: sold for $1,350,000 on 2026-05-05, 0.06 mi away600 Chestnut St APT 210: sold for $1,410,000 on 2026-03-31, 0.06 mi away745 Chestnut St APT 201: sold for $1,650,000 on 2026-03-12, 0.12 mi away600 Chestnut St APT 110: sold for $799,000 on 2026-09-21, 0.06 mi away44 Macondray Ln APT 2W: sold for $1,425,000 on 2026-08-17, 0.27 mi away420B Bay St: sold for $1,858,500 on 2026-07-29, 0.19 mi away690 Chestnut St APT 409C: sold for $1,350,000 on 2026-05-21, 0.08 mi away935 Filbert St APT 3: sold for $1,195,000 on 2026-05-27, 0.20 mi away600 Chestnut St APT 103: sold for $1,325,000 on 2025-11-17, 0.06 mi away33 Vandewater St APT 103: sold for $1,185,000 on 2026-08-03, 0.15 mi away420C Bay St: sold for $2,005,000 on 2026-04-08, 0.19 mi away999 Green St APT 1501: sold for $2,100,000 on 2026-06-12, 0.34 mi away816 Union St: sold for $1,030,000 on 2025-11-07, 0.21 mi away1025 Lombard St APT 4: sold for $1,401,000 on 2026-09-23, 0.29 mi away460 Francisco St APT 103: sold for $975,000 on 2026-03-16, 0.13 mi away999 Green St APT 1205: sold for $1,240,000 on 2026-06-03, 0.34 mi away1731 Powell St Unit 303: sold for $2,280,000 on 2026-04-08, 0.20 mi away460 Francisco St APT 204: sold for $945,000 on 2026-02-13, 0.13 mi away2011 Powell St: sold for $1,170,000 on 2026-08-06, 0.10 mi away999 Green St APT 2403: sold for $1,665,000 on 2026-08-12, 0.34 mi away999 Green St APT 2001: sold for $2,050,000 on 2025-11-03, 0.34 mi away999 Green St APT 3001: sold for $4,995,000 on 2026-03-26, 0.34 mi away1041 Filbert St: sold for $1,725,000 on 2026-04-20, 0.26 mi away737 Union St: sold for $1,599,000 on 2026-10-23, 0.24 mi away1843 Taylor St: sold for $1,542,500 on 2026-06-24, 0.26 mi away1176 Greenwich St: sold for $1,875,000 on 2026-10-05, 0.32 mi away941 Lombard St: sold for $1,235,000 on 2025-12-29, 0.21 mi away999 Green St APT 2404: sold for $3,125,000 on 2026-04-30, 0.34 mi away935 Filbert St APT 4: sold for $1,975,000 on 2026-01-06, 0.20 mi away999 Green St APT 2605: sold for $4,100,000 on 2026-07-14, 0.34 mi away776 Green St: sold for $1,802,000 on 2026-03-27, 0.27 mi away373 Lombard St APT 501: sold for $2,525,000 on 2025-12-30, 0.31 mi away999 Green St APT 1702: sold for $3,200,000 on 2026-04-17, 0.34 mi away813 Union St: sold for $1,595,000 on 2025-10-30, 0.23 mi away25 Medau Pl: sold for $850,000 on 2026-08-21, 0.29 mi away902 Filbert St: sold for $2,600,000 on 2026-05-11, 0.17 mi away1917 Stockton St: sold for $2,375,000 on 2026-03-31, 0.19 mi away0.35 mi0.2 mi$1.38M$1.70M$1.48M$1.96M$1.23M$2.19M$1.17M$1.40M$1.29M$2.31M$1.74M$1.56M$1.82M$1.42M$2.91M$883K$2.67M$2.45M2121A Mason StBlock 0065, Lot 06300.25 miN650 Chestnut St APT 309: sold for $1,465,000 on 2026-09-02, 0.07 mi away600 Chestnut St APT 207: sold for $1,350,000 on 2026-05-05, 0.06 mi away600 Chestnut St APT 210: sold for $1,410,000 on 2026-03-31, 0.06 mi away745 Chestnut St APT 201: sold for $1,650,000 on 2026-03-12, 0.12 mi away600 Chestnut St APT 110: sold for $799,000 on 2026-09-21, 0.06 mi away44 Macondray Ln APT 2W: sold for $1,425,000 on 2026-08-17, 0.27 mi away420B Bay St: sold for $1,858,500 on 2026-07-29, 0.19 mi away690 Chestnut St APT 409C: sold for $1,350,000 on 2026-05-21, 0.08 mi away935 Filbert St APT 3: sold for $1,195,000 on 2026-05-27, 0.20 mi away600 Chestnut St APT 103: sold for $1,325,000 on 2025-11-17, 0.06 mi away33 Vandewater St APT 103: sold for $1,185,000 on 2026-08-03, 0.15 mi away420C Bay St: sold for $2,005,000 on 2026-04-08, 0.19 mi away999 Green St APT 1501: sold for $2,100,000 on 2026-06-12, 0.34 mi away816 Union St: sold for $1,030,000 on 2025-11-07, 0.21 mi away1025 Lombard St APT 4: sold for $1,401,000 on 2026-09-23, 0.29 mi away460 Francisco St APT 103: sold for $975,000 on 2026-03-16, 0.13 mi away999 Green St APT 1205: sold for $1,240,000 on 2026-06-03, 0.34 mi away1731 Powell St Unit 303: sold for $2,280,000 on 2026-04-08, 0.20 mi away460 Francisco St APT 204: sold for $945,000 on 2026-02-13, 0.13 mi away2011 Powell St: sold for $1,170,000 on 2026-08-06, 0.10 mi away999 Green St APT 2403: sold for $1,665,000 on 2026-08-12, 0.34 mi away999 Green St APT 2001: sold for $2,050,000 on 2025-11-03, 0.34 mi away999 Green St APT 3001: sold for $4,995,000 on 2026-03-26, 0.34 mi away1041 Filbert St: sold for $1,725,000 on 2026-04-20, 0.26 mi away737 Union St: sold for $1,599,000 on 2026-10-23, 0.24 mi away1843 Taylor St: sold for $1,542,500 on 2026-06-24, 0.26 mi away1176 Greenwich St: sold for $1,875,000 on 2026-10-05, 0.32 mi away941 Lombard St: sold for $1,235,000 on 2025-12-29, 0.21 mi away999 Green St APT 2404: sold for $3,125,000 on 2026-04-30, 0.34 mi away935 Filbert St APT 4: sold for $1,975,000 on 2026-01-06, 0.20 mi away999 Green St APT 2605: sold for $4,100,000 on 2026-07-14, 0.34 mi away776 Green St: sold for $1,802,000 on 2026-03-27, 0.27 mi away373 Lombard St APT 501: sold for $2,525,000 on 2025-12-30, 0.31 mi away999 Green St APT 1702: sold for $3,200,000 on 2026-04-17, 0.34 mi away813 Union St: sold for $1,595,000 on 2025-10-30, 0.23 mi away25 Medau Pl: sold for $850,000 on 2026-08-21, 0.29 mi away902 Filbert St: sold for $2,600,000 on 2026-05-11, 0.17 mi away1917 Stockton St: sold for $2,375,000 on 2026-03-31, 0.19 mi away0.35 mi

38 sales inside 0.35 mi since Apr 2025. Click a sale on the map, or untick it below, to leave it out.

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Estimated sale price today

Medium confidence

$1,547,000

$1,191,000estimated range$1,903,000

From 38 comps at a weighted median of $1,278 per sqft.

Block
0065
Lot
063
Sales
Oct 2025 to Oct 2026
Prices adjusted to
2026-10-30
Within
0.35 mi
Sold since
Apr 2025

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Sale prices versus asking

Similarity-weighted median: 13.0% above final asking.

Middle half: at asking to 18.0% above asking.

28 of 38 selected comps have a verified final asking price.

Comparisons use the final advertised asking price from the same sale, before pending or closing.

Comparable sales (38)

Every sale inside the circle starts ticked. Untick one here, or click it on the map, to leave it out. Closer, more similar sales weigh more.

AddressSoldPriceFinal askingSale vs. askingAdj. today$/sqftSizeDist.WhyMatch
650 Chestnut St APT 3092026-09-02$1.47M$1,195,000$270,000 above asking (22.6%)$1.47M$1,2782bd 2ba 1,146sf0.07 misimilar size, recent
600 Chestnut St APT 2072026-05-05$1.35M$1,195,000$155,000 above asking (13.0%)$1.38M$1,0902bd 2ba 1,270sf0.06 misimilar size
600 Chestnut St APT 2102026-03-31$1.41M$1,195,000$215,000 above asking (18.0%)$1.46M$1,1122bd 2ba 1,310sf0.06 misimilar size
745 Chestnut St APT 2012026-03-12$1.65M$1,400,000$250,000 above asking (17.9%)$1.7M$1,4632bd 2ba 1,165sf0.12 misimilar size
600 Chestnut St APT 1102026-09-21$799K$799,000
cut from $889K
At asking$799K$8551bd 2ba 934sf0.06 mi1 bd, recent
44 Macondray Ln APT 2W2026-08-17$1.43M$1,425,000
cut from $1.5M
At asking$1.48M$1,2992bd 2ba 1,140sf0.27 misimilar size, recent
420B Bay St2026-07-29$1.86MNo asking price—$1.96M$1,3903bd 2.5ba 1,410sf0.19 mi
690 Chestnut St APT 409C2026-05-21$1.35MNo asking price—$1.38M$9833bd 2ba 1,408sf0.08 mi
935 Filbert St APT 32026-05-27$1.2MNo asking price—$1.23M$1,2111bd 1ba 1,012sf0.20 mi1 bd
600 Chestnut St APT 1032025-11-17$1.32M$1,300,000$25,000 above asking (1.9%)$1.5M$1,0722bd 2ba 1,399sf0.06 mi
33 Vandewater St APT 1032026-08-03$1.19M$995,000$190,000 above asking (19.1%)$1.23M$1,2962bd 2ba 950sf0.15 mirecent
420C Bay St2026-04-08$2MNo asking price—$2.03M$1,4383bd 3ba 1,410sf0.19 mi
999 Green St APT 15012026-06-12$2.1M$2,150,000$50,000 below asking (2.3%)$2.19M$1,6832bd 2ba 1,300sf0.34 misimilar size
816 Union St2025-11-07$1.03M$995,000$35,000 above asking (3.5%)$1.17M$1,0892bd 2ba 1,070sf0.21 mi
1025 Lombard St APT 42026-09-23$1.4M$998,000$403,000 above asking (40.4%)$1.4M$1,4751bd 1ba 950sf0.29 mi1 bd, recent
460 Francisco St APT 1032026-03-16$975K$899,000$76,000 above asking (8.5%)$1.01M$1,1391bd 1ba 884sf0.13 mi1 bd
999 Green St APT 12052026-06-03$1.24M$1,379,500$139,500 below asking (10.1%)$1.29M$1,3101bd 1ba 986sf0.34 mi1 bd
1731 Powell St Unit 3032026-04-08$2.28M$2,295,000$15,000 below asking (0.7%)$2.31M$1,3152bd 3ba 1,753sf0.20 mi
460 Francisco St APT 2042026-02-13$945K$899,000$46,000 above asking (5.1%)$1.01M$1,1002bd 1ba 921sf0.13 mi
2011 Powell St2026-08-06$1.17MNo asking price—$1.22M$9143bd 1ba 1,330sf0.10 misimilar size, recent
999 Green St APT 24032026-08-12$1.67M$1,495,000$170,000 above asking (11.4%)$1.73M$1,9121bd 1ba 905sf0.34 mi1 bd, recent
999 Green St APT 20012025-11-03$2.05M$2,095,000
cut from $2.17M
$45,000 below asking (2.1%)$2.32M$1,7852bd 2ba 1,300sf0.34 misimilar size
999 Green St APT 30012026-03-26$5MNo asking price—$5.16M$3,5832bd 2ba 1,440sf0.34 mi
1041 Filbert St2026-04-20$1.73M$1,398,000$327,000 above asking (23.4%)$1.74M$1,6042bd 2ba 1,088sf0.26 mi
737 Union St2026-10-23$1.6M$1,599,000At asking$1.56M$1,0483bd 2ba 1,484sf0.24 mirecent
1843 Taylor St2026-06-24$1.54MNo asking price—$1.61M$1,1242bd 2ba 1,430sf0.26 mi
1176 Greenwich St2026-10-05$1.88M$1,795,000$80,000 above asking (4.5%)$1.82M$1,1402bd 2ba 1,600sf0.32 mirecent
941 Lombard St2025-12-29$1.24M$1,250,000
cut from $1.5M
$15,000 below asking (1.2%)$1.42M$1,3362bd 1ba 1,066sf0.21 mi
999 Green St APT 24042026-04-30$3.13M$3,200,000$75,000 below asking (2.3%)$3.16M$1,8742bd 2ba 1,687sf0.34 mi
935 Filbert St APT 42026-01-06$1.98MNo asking price—$2.26M$1,4023bd 2ba 1,614sf0.20 mi
999 Green St APT 26052026-07-14$4.1M$4,550,000
cut from $5.3M
$450,000 below asking (9.9%)$4.32M$2,4092bd 2ba 1,795sf0.34 mi
776 Green St2026-03-27$1.8M$1,650,000$152,000 above asking (9.2%)$1.86M$1,3593bd 1ba 1,370sf0.27 mi
373 Lombard St APT 5012025-12-30$2.52M$2,495,000$30,000 above asking (1.2%)$2.91M$1,7923bd 3ba 1,625sf0.31 mi
999 Green St APT 17022026-04-17$3.2M$3,300,000$100,000 below asking (3.0%)$3.24M$1,8713bd 3ba 1,730sf0.34 mi
813 Union St2025-10-30$1.59M$1,595,000
cut from $1.7M
At asking$1.8M$1,1212bd 2ba 1,609sf0.23 mi
25 Medau Pl2026-08-21$850KNo asking price—$883K$1,1782bd 1ba 750sf0.29 mirecent
902 Filbert St2026-05-11$2.6M$1,995,000$605,000 above asking (30.3%)$2.67M$1,4573bd 3ba 1,830sf0.17 mi
1917 Stockton St2026-03-31$2.38MNo asking price—$2.45M$1,2723bd 3ba 1,928sf0.19 mi

This home's sale history