Home › Castro/Upper Market › 21st St
3808 21st St
Single-family home, 1 ba, 1,784 sqft, built 1907
52 sales inside 0.35 mi since May 2025. 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
$3,500,000
$2,520,000estimated range$4,306,000
From 52 comps at a weighted median of $1,962 per sqft.
- Block
- 3603
- Lot
- 007
- Sales
- Oct 2025 to Oct 2026
- Prices adjusted to
- 2026-11-03
- Within
- 0.35 mi
- Sold since
- May 2025
Sale prices versus asking
Similarity-weighted median: 31.7% above final asking.
Middle half: 10.0% above asking to 49.9% above asking. 41 of 52 selected comps have a verified final asking price.
Comparable sales (52)
Every sale inside the circle starts ticked, most similar first. Untick one here, or click it on the map, to leave it out.
| Address | Sold | Price | Final asking | Sale vs. asking | Adj. today | $/sqft | Size | Dist. | Why | |
|---|---|---|---|---|---|---|---|---|---|---|
| 731 Noe St | 2026-06-24 | $3.55M | $2,695,000 | $855,000 above asking (31.7%) | $3.72M | $2,102 | 3bd 2ba 1,769sf | 0.07 mi | similar size | |
| 264 Liberty St | 2026-05-11 | $3.75M | $1,995,000 | $1,755,000 above asking (88.0%) | $3.93M | $2,202 | 2bd 2ba 1,785sf | 0.31 mi | similar size | |
| 449 Alvarado St | 2026-06-04 | $4.95M | $3,750,000 | $1,200,000 above asking (32.0%) | $5.19M | $3,056 | 4bd 3ba 1,697sf | 0.21 mi | similar size | |
| 3622 21st St | 2026-02-17 | $3.3M | $1,988,000 | $1,312,000 above asking (66.0%) | $3.58M | $1,924 | 2bd 2ba 1,862sf | 0.22 mi | same street, similar size | |
| 3974 22nd St | 2026-02-23 | $3.08M | $2,795,000 | $280,000 above asking (10.0%) | $3.34M | $1,805 | 3bd 2ba 1,850sf | 0.22 mi | similar size | |
| 537 Liberty St | 2026-08-20 | $3.58M | $3,699,000 | $119,000 below asking (3.2%) | $3.82M | $1,683 | 5bd 3ba 2,269sf | <0.05 mi | recent | |
| 3925 18th St Price inferred from public records | 2026-06-02 | $1.2M | — | — | $1.26M | $748 | 3bd 2ba 1,680sf | 0.32 mi | similar size | |
| 3666 22nd St | 2026-07-06 | $3.8M | $3,100,000 | $700,000 above asking (22.6%) | $4.09M | $1,962 | 3bd 3ba 2,085sf | 0.20 mi | ||
| 522 Liberty St | 2025-11-26 | $2.1M | $2,195,000 | $95,000 below asking (4.3%) | $2.46M | $1,529 | 3bd 2ba 1,610sf | 0.06 mi | ||
| 306 Diamond St | 2025-11-13 | $2.6M | $1,750,000 | $850,000 above asking (48.6%) | $3.05M | $1,696 | 3bd 2ba 1,797sf | 0.25 mi | similar size | |
| 438 Elizabeth St | 2026-08-28 | $4.93M | $3,295,000 | $1,635,000 above asking (49.6%) | $5.26M | $2,514 | 3bd 3ba 2,092sf | 0.29 mi | recent | |
| 3853 22nd St | 2026-03-10 | $4.58M | $2,598,000 | $1,977,000 above asking (76.1%) | $4.82M | $2,291 | 3bd 3ba 2,103sf | 0.14 mi | ||
| 4048 23rd St | 2026-05-15 | $4.79M | $3,195,000 | $1,594,423 above asking (49.9%) | $5.02M | $2,366 | 4bd 2ba 2,122sf | 0.23 mi | ||
| 308 Diamond St | 2025-11-12 | $3M | $2,750,000 | $250,000 above asking (9.1%) | $3.52M | $1,924 | 3bd 2ba 1,828sf | 0.25 mi | similar size | |
| 3828 23rd Street | 2026-09-10 | $1.85M | $1,699,000 | $151,000 above asking (8.9%) | $1.85M | $851 | 4bd 3ba 2,173sf | 0.32 mi | recent | |
| 701 Castro St | 2026-04-21 | $4.29M | No asking price | — | $4.45M | $3,063 | 2ba 1,453sf | 0.12 mi | ||
| 3761 21st St | 2026-02-03 | $4.63M | $4,295,000 | $340,000 above asking (7.9%) | $5.03M | $2,237 | 4bd 4ba 2,250sf | 0.07 mi | same street | |
| 4118 20th St | 2026-04-29 | $4.4M | $2,995,000 | $1,405,000 above asking (46.9%) | $4.56M | $1,996 | 4bd 4ba 2,287sf | 0.11 mi | ||
| 359 Diamond St | 2026-02-04 | $2.23M | No asking price | — | $2.43M | $1,566 | 3bd 2ba 1,550sf | 0.22 mi | ||
| 3919 22nd St | 2026-10-28 | $4.71M | $3,995,000 | $720,000 above asking (18.0%) | $4.52M | $1,777 | 4bd 4ba 2,544sf | 0.19 mi | recent | |
| 591 Diamond St | 2026-10-05 | $4.38M | $3,295,000 | $1,080,000 above asking (32.8%) | $4.19M | $1,770 | 3bd 4ba 2,370sf | 0.31 mi | recent | |
| 971 Sanchez St | 2026-10-16 | $4.95M | $2,995,000 | $1,956,522 above asking (65.3%) | $4.75M | $1,934 | 4bd 3ba 2,455sf | 0.25 mi | recent | |
| 133 Vicksburg St | 2026-02-13 | $3.75M | $2,695,000 | $1,055,000 above asking (39.1%) | $4.07M | $2,104 | 3bd 2ba 1,935sf | 0.34 mi | similar size | |
| 343 Cumberland St | 2026-09-03 | $3.17M | $1,995,000 | $1,180,000 above asking (59.1%) | $3.17M | $2,573 | 3bd 2ba 1,234sf | 0.16 mi | recent | |
| 3983 19th St | 2026-02-11 | $3.3M | $3,295,000 | $5,000 above asking (0.2%) | $3.58M | $1,623 | 4bd 3ba 2,208sf | 0.20 mi | ||
| 3616 21st St | 2026-01-30 | $4.23M | $2,188,000 | $2,037,888 above asking (93.1%) | $5M | $2,629 | 2bd 2ba 1,902sf | 0.23 mi | same street, similar size | |
| 4031 22nd St | 2025-10-31 | $2.53M | $1,495,000 | $1,038,000 above asking (69.4%) | $2.91M | $1,905 | 2bd 2ba 1,530sf | 0.29 mi | ||
| 4048 22nd St | 2026-07-15 | $3.77M | No asking price | — | $4.06M | $1,626 | 3bd 2ba 2,500sf | 0.30 mi | ||
| 278 Eureka St | 2026-01-02 | $2.52M | No asking price | — | $2.99M | $2,061 | 3bd 1ba 1,450sf | 0.32 mi | ||
| 282 Eureka St | 2026-03-30 | $3.9M | No asking price | — | $4.11M | $1,750 | 4bd 3ba 2,346sf | 0.32 mi | ||
| 3879 23rd St | 2025-10-27 | $3.2M | $2,295,000 | $905,000 above asking (39.4%) | $3.68M | $1,655 | 4bd 4ba 2,225sf | 0.29 mi | ||
| 761 Noe St | 2026-03-27 | $1.52M | $1,595,000 cut from $1.65M | $70,000 below asking (4.4%) | $1.61M | $1,281 | 2bd 1ba 1,254sf | <0.05 mi | ||
| 311 Cumberland St | 2026-07-15 | $1.92M | No asking price | — | $2.07M | $1,764 | 2bd 2ba 1,172sf | 0.18 mi | ||
| 3960 20th St | 2025-11-10 | $4.7M | $4,395,000 | $305,000 above asking (6.9%) | $5.51M | $2,388 | 4bd 4ba 2,308sf | 0.22 mi | ||
| 476 Liberty St | 2026-09-28 | $5.6M | $3,795,000 | $1,805,000 above asking (47.6%) | $5.6M | $1,747 | 4bd 4ba 3,205sf | 0.07 mi | recent | |
| 465 Liberty St | 2025-12-22 | $1.81M | $1,388,000 | $419,000 above asking (30.2%) | $2.15M | $1,678 | 2bd 2ba 1,284sf | 0.07 mi | ||
| 1040 Sanchez St | 2026-10-29 | $3.73M | No asking price | — | $3.57M | $3,307 | 3bd 2ba 1,080sf | 0.30 mi | recent | |
| 323 Eureka St | 2026-03-12 | $5M | $3,495,000 | $1,504,999 above asking (43.1%) | $5.26M | $2,044 | 4bd 4ba 2,576sf | 0.28 mi | ||
| 3906 23rd St | 2026-05-11 | $2.5M | $1,295,000 | $1,205,000 above asking (93.1%) | $2.62M | $2,302 | 2bd 1ba 1,138sf | 0.26 mi | ||
| 481 Diamond St | 2026-10-27 | $4.08M | $3,995,000 | $80,000 above asking (2.0%) | $3.91M | $1,551 | 4bd 4ba 2,518sf | 0.24 mi | recent | |
| 441 Douglass St | 2026-05-18 | $4.5M | No asking price | — | $4.72M | $1,723 | 3bd 4ba 2,737sf | 0.33 mi | ||
| 541 Diamond St | 2026-05-22 | $3.05M | $2,495,000 | $555,000 above asking (22.2%) | $3.2M | $2,906 | 2bd 2ba 1,100sf | 0.27 mi | ||
| 3680 21st St | 2026-10-22 | $6.15M | $6,950,000 | $800,000 below asking (11.5%) | $5.9M | $1,872 | 4bd 3ba 3,150sf | 0.17 mi | same street, recent | |
| 1040 Sanchez St | 2026-06-08 | $2.48M | No asking price | — | $2.6M | $2,410 | 3bd 2ba 1,080sf | 0.30 mi | ||
| 553 Douglass St | 2026-08-27 | $5M | $3,785,000 | $1,214,999 above asking (32.1%) | $5.33M | $1,724 | 5bd 4ba 3,095sf | 0.34 mi | recent | |
| 1008 Castro St | 2026-04-01 | $2.2M | $1,795,000 | $405,000 above asking (22.6%) | $2.28M | $1,981 | 2bd 1ba 1,152sf | 0.23 mi | ||
| 143 Collingwood St | 2026-06-08 | $4.85M | $3,695,000 | $1,155,000 above asking (31.3%) | $5.08M | $1,755 | 4bd 4ba 2,895sf | 0.31 mi | ||
| 4106 20th St | 2025-12-03 | $2.6M | $2,125,000 | $475,000 above asking (22.4%) | $3.1M | $2,953 | 4bd 3ba 1,050sf | 0.11 mi | ||
| 3627 21st St | 2026-04-20 | $5.4M | $4,700,000 | $700,000 above asking (14.9%) | $5.6M | $1,866 | 3bd 3ba 3,003sf | 0.22 mi | same street | |
| 335 Diamond St | 2026-04-08 | $6.42M | $6,800,000 | $375,000 below asking (5.5%) | $6.67M | $2,097 | 3bd 3ba 3,178sf | 0.21 mi | ||
| 279 Diamond St | 2026-01-28 | $4.58M | $3,495,000 | $1,085,000 above asking (31.0%) | $5.42M | $1,801 | 4bd 3ba 3,010sf | 0.25 mi | ||
| 621 Sanchez St | 2025-11-05 | $2.9M | No asking price | — | $3.4M | $1,419 | 4bd 3ba 2,400sf | 0.23 mi |
What other buyers offered
No one has reported a losing offer on this home yet. Lost a bid here? Sign in to add yours, so the next buyer sees how far over asking it really went.
This home's sale history
- 2022-10-03: $2,149,000 (price inferred from public records, medium confidence)
Today's estimate uses the home's latest facts. It does not say what the home was worth at these sales.