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331 Union St
Single-family home, 1 ba, 802 sqft, built 1910
Today’s estimate uses 802 sqft and the home’s latest facts. It does not estimate the home’s value at a past sale date.
63 sales inside 3 mi since Oct 2023. The estimate uses the 59 closest. Click a sale on the map, or untick it below, to leave it out.
Drag the circle or this strip to change the searchEstimated sale price today
Medium confidence
$1,126,000
$811,000estimated range$1,385,000
From 59 comps at a weighted median of $1,404 per sqft.
- Block
- 0114
- Lot
- 054
- Sales
- Dec 2023 to Oct 2026
- Prices adjusted to
- 2026-10-30
- Within
- 3 mi
- Sold since
- Oct 2023
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I'm interestedSale prices versus asking
Similarity-weighted median: 9.4% above final asking.
Middle half: 9.4% above asking to 9.4% above asking.
22 of 59 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 (59)
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.
| Address | Sold | Price | Final asking | Sale vs. asking | Adj. today | $/sqft | Size | Dist. | Why | Match | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 847 Greenwich St | 2026-07-21 | $1.3M | $1,188,000 | $112,000 above asking (9.4%) | $1.38M | $1,404 | 0bd 2ba 985sf | 0.48 mi | |||
| 22 Morrell St | 2026-05-15 | $1.43M | $1,495,000 | $70,000 below asking (4.7%) | $1.47M | $1,380 | 1bd 1ba 1,068sf | 0.85 mi | |||
| 44 Lynch St | 2025-11-19 | $1.41M | $799,000 | $609,888 above asking (76.3%) | $1.64M | $1,572 | 2bd 1ba 1,044sf | 0.76 mi | |||
| 12 Auburn St Price inferred from public records | 2024-05-14 | $1.05M | — | — | $1.12M | $1,579 | 1ba 710sf | 0.54 mi | |||
| 305 Chestnut St Price inferred from public records | 2024-02-29 | $1.9M | — | — | $2.07M | $2,126 | 1ba 972sf | 0.30 mi | |||
| 14 Allen St Price inferred from public records | 2024-03-15 | $1.3M | — | — | $1.37M | $1,693 | 1ba 810sf | 0.80 mi | similar size | ||
| 3050 Polk St Price inferred from public records | 2024-06-12 | $1.25M | — | — | $1.35M | $1,485 | 1bd 1ba 910sf | 1.04 mi | |||
| 3110 Buchanan St | 2025-12-05 | $1.98M | $1,980,000 | At asking | $2.34M | $2,198 | 2bd 2ba 1,066sf | 1.50 mi | |||
| 535 Buchanan St | 2026-04-28 | $835K | $749,000 | $86,000 above asking (11.5%) | $856K | $1,024 | 2bd 1ba 836sf | 2.18 mi | similar size | ||
| 3730 Divisadero St | 2026-09-08 | $3.42M | $2,499,000 | $926,000 above asking (37.1%) | $3.42M | $3,142 | 3bd 1ba 1,090sf | 2.12 mi | recent | ||
| 317 Arkansas St | 2026-07-20 | $1.63M | No asking price | — | $1.73M | $2,056 | 1ba 841sf | 2.70 mi | similar size | ||
| 3 Cottage Row | 2026-09-18 | $2.15M | $1,745,000 | $410,000 above asking (23.5%) | $2.15M | $1,533 | 2bd 2ba 1,406sf | 1.78 mi | recent | ||
| 115 Magnolia St | 2025-12-23 | $1.92M | $1,995,000 | $80,000 below asking (4.0%) | $2.27M | $1,635 | 3bd 2ba 1,386sf | 1.55 mi | |||
| 6 Cottage Row | 2026-06-17 | $1.76M | $1,250,000 | $510,000 above asking (40.8%) | $1.82M | $1,267 | 2bd 3ba 1,440sf | 1.78 mi | |||
| 18 Orben Pl #20 Price inferred from public records | 2024-11-27 | $2.11M | — | — | $2.31M | $2,138 | 2bd 1ba 1,080sf | 1.75 mi | |||
| 581 Ivy St Price inferred from public records | 2024-09-24 | $1.7M | — | — | $1.87M | $2,164 | 3bd 2ba 864sf | 2.08 mi | similar size | ||
| 907 Minnesota St | 2026-08-21 | $2.1M | $1,385,000 | $715,000 above asking (51.6%) | $2.22M | $2,380 | 2bd 1ba 932sf | 2.98 mi | recent | ||
| 36 Beideman St #103 | 2026-02-09 | $1.41M | No asking price | — | $1.5M | $1,565 | 2bd 2ba 960sf | 2.22 mi | |||
| 484 Kansas St | 2025-12-04 | $1.34M | $995,000 | $350,000 above asking (35.2%) | $1.59M | $1,636 | 1bd 1ba 973sf | 2.56 mi | |||
| 2022 Beach St | 2026-02-24 | $3.5M | No asking price | — | $3.74M | $2,824 | 4bd 3ba 1,325sf | 2.06 mi | |||
| 22 Bernice St Price inferred from public records | 2024-03-20 | $1.6M | — | — | $1.7M | $2,067 | 820sf | 2.18 mi | similar size | ||
| 1035 Natoma St | 2025-12-08 | $1.32M | $1,195,000 cut from $1.5M | $130,000 above asking (10.9%) | $1.57M | $1,144 | 3bd 2ba 1,370sf | 2.02 mi | |||
| 779 Wisconsin St | 2026-08-12 | $4.55M | No asking price | — | $4.81M | $4,930 | 4bd 3.5ba 975sf | 3.00 mi | recent | ||
| 1037 14th St | 2026-03-31 | $1.4M | No asking price | — | $1.45M | $1,464 | 2bd 1ba 993sf | 2.91 mi | |||
| 711 York St | 2026-03-26 | $1.41M | $988,000 | $422,000 above asking (42.7%) | $1.46M | $1,422 | 3bd 1ba 1,030sf | 2.82 mi | |||
| 2576 Post St | 2026-05-18 | $1.7M | $1,495,000 | $205,000 above asking (13.7%) | $1.76M | $1,333 | 2bd 2ba 1,319sf | 2.44 mi | |||
| 1342 20th St | 2026-04-07 | $1.65M | No asking price | — | $1.69M | $1,610 | 2bd 1ba 1,050sf | 2.85 mi | |||
| 2507 Post St Price inferred from public records | 2024-07-31 | $1.24M | — | — | $1.38M | $1,551 | 2bd 1ba 890sf | 2.40 mi | |||
| 1807 Scott St Price inferred from public records | 2024-08-19 | $1.28M | — | — | $1.45M | $1,371 | 1bd 1ba 1,057sf | 2.08 mi | |||
| 314 Lily St Price inferred from public records | 2024-06-07 | $1.23M | — | — | $1.32M | $1,342 | 1ba 987sf | 2.19 mi | |||
| 1933 Laguna St Price inferred from public records | 2024-08-23 | $1.86M | — | — | $2.1M | $1,571 | 2bd 2ba 1,338sf | 1.55 mi | |||
| 768 De Haro St | 2026-04-30 | $2M | $1,295,000 | $705,000 above asking (54.4%) | $2.05M | $1,680 | 2bd 2ba 1,220sf | 2.82 mi | |||
| 22 Wood St | 2025-11-03 | $1.68M | $1,295,000 | $380,000 above asking (29.3%) | $1.95M | $1,742 | 2bd 2ba 1,120sf | 2.69 mi | |||
| 436 San Bruno Ave | 2026-06-18 | $1.35M | $1,295,000 cut from $1.4M | $55,000 above asking (4.2%) | $1.4M | $999 | 2bd 1ba 1,400sf | 2.54 mi | |||
| 132 Anza St | 2026-09-04 | $1.63M | $1,400,000 | $225,000 above asking (16.1%) | $1.63M | $1,224 | 2bd 1ba 1,328sf | 2.73 mi | recent | ||
| 700 De Haro St | 2025-11-10 | $1.2M | $949,000 | $251,000 above asking (26.4%) | $1.4M | $1,377 | 2bd 1ba 1,015sf | 2.76 mi | |||
| 144 Collins St | 2026-10-14 | $2M | No asking price | — | $1.92M | $1,345 | 3bd 2ba 1,425sf | 2.74 mi | recent | ||
| 631 San Bruno Ave | 2026-05-04 | $2.2M | $1,395,000 | $805,000 above asking (57.7%) | $2.28M | $1,597 | 2bd 1ba 1,425sf | 2.73 mi | |||
| 632 Mississippi St | 2026-06-18 | $2.25M | $1,495,000 | $755,000 above asking (50.5%) | $2.33M | $1,843 | 2bd 2ba 1,265sf | 2.98 mi | |||
| 130 Collins St | 2026-04-03 | $2.5M | No asking price | — | $2.56M | $1,891 | 2bd 2ba 1,355sf | 2.74 mi | |||
| 70 Blake St Price inferred from public records | 2024-03-25 | $1.76M | — | — | $1.86M | $2,253 | 1ba 825sf | 2.81 mi | similar size | ||
| 617 York St Price inferred from public records | 2024-10-25 | $1.75M | — | — | $1.88M | $1,850 | 2bd 1ba 1,014sf | 2.74 mi | |||
| 869 Vermont St Price inferred from public records | 2024-12-10 | $775K | — | — | $881K | $1,351 | 1bd 1ba 652sf | 2.91 mi | |||
| 40 Prosper St Price inferred from public records | 2024-10-09 | $1.32M | — | — | $1.42M | $1,553 | 1ba 915sf | 2.96 mi | |||
| 828 Alabama St Price inferred from public records | 2024-11-06 | $1.46M | — | — | $1.6M | $1,694 | 1bd 1ba 945sf | 2.96 mi | |||
| 558 Arkansas St | 2025-10-29 | $1.5M | No asking price | — | $1.72M | $1,361 | 1ba 1,260sf | 2.90 mi | |||
| 448 Pennsylvania Ave | 2025-11-20 | $2.6M | $1,995,000 | $610,000 above asking (30.6%) | $3.03M | $2,206 | 3bd 3ba 1,375sf | 2.83 mi | |||
| 2167 North Point St Price inferred from public records | 2023-12-20 | $2.27M | — | — | $2.78M | $2,184 | 2bd 2ba 1,275sf | 2.07 mi | |||
| 745 De Haro St Price inferred from public records | 2024-08-29 | $2.56M | — | — | $2.9M | $2,729 | 2ba 1,062sf | 2.80 mi | |||
| 715 Wisconsin St Price inferred from public records | 2024-10-09 | $1.75M | — | — | $1.88M | $1,734 | 1ba 1,082sf | 2.95 mi | |||
| 285 Mississippi St Price inferred from public records | 2024-11-06 | $1.43M | — | — | $1.56M | $1,231 | 2bd 1ba 1,267sf | 2.68 mi | |||
| 1319 Lyon St Price inferred from public records | 2024-06-04 | $1.3M | — | — | $1.41M | $1,056 | 1ba 1,331sf | 2.50 mi | |||
| 1735 Mcallister St Price inferred from public records | 2024-06-28 | $2.26M | — | — | $2.44M | $1,808 | 2bd 1ba 1,350sf | 2.54 mi | |||
| 444 San Bruno Av Price inferred from public records | 2024-08-12 | $1.13M | — | — | $1.27M | $910 | 1ba 1,400sf | 2.54 mi | |||
| 262 Shotwell St Price inferred from public records | 2024-04-05 | $1.63M | — | — | $1.75M | $1,324 | 2bd 1ba 1,320sf | 2.60 mi | |||
| 631 Shotwell St Price inferred from public records | 2024-09-30 | $1.55M | — | — | $1.7M | $1,263 | 3bd 2ba 1,350sf | 2.99 mi | |||
| 403 Laurel St Price inferred from public records | 2024-02-06 | $2.4M | — | — | $2.61M | $1,934 | 2bd 1ba 1,350sf | 2.65 mi | |||
| 71 Albion St Price inferred from public records | 2024-01-31 | $1.25M | — | — | $1.45M | $1,071 | 1ba 1,350sf | 2.63 mi | |||
| 17 Chula Ln #19 Price inferred from public records | 2024-02-12 | $1.63M | — | — | $1.77M | $1,263 | 2ba 1,400sf | 2.83 mi |