Home › Castro/Upper Market › 18th St
4331 18th St
Single-family home, 3 bd, 2 ba, 2,051 sqft, built 1900
Today’s estimate uses 2,051 sqft and the home’s latest facts. It does not estimate the home’s value at a past sale date.
33 sales inside 0.35 mi since Apr 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
$3,456,000
From 33 comps at a weighted median of $1,685 per sqft.
- Block
- 2693
- Lot
- 031
- Sales
- Oct 2025 to Jul 2026
- Prices adjusted to
- 2026-10-30
- Within
- 0.35 mi
- Sold since
- Apr 2025
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I'm interestedSale prices versus asking
Similarity-weighted median: 27.8% above final asking.
Middle half: 4.0% above asking to 31.0% above asking.
24 of 33 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 (33)
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 80 Diamond St | 2026-04-22 | $3.83M | $2,995,000 | $833,000 above asking (27.8%) | $3.92M | $1,877 | 3bd 3ba 2,090sf | <0.05 mi | similar size, 3 bd | ||
| 4431 19th St | 2026-04-24 | $2.6M | $2,500,000 | $100,000 above asking (4.0%) | $2.66M | $1,302 | 3bd 2ba 2,046sf | 0.12 mi | similar size, 3 bd | ||
| 28 Hartford St | 2026-04-24 | $3M | No asking price | — | $3.07M | $1,606 | 3bd 3ba 1,915sf | 0.22 mi | similar size, 3 bd | ||
| 132 Corbett Ave | 2026-05-21 | $3.2M | $2,495,000 | $705,000 above asking (28.3%) | $3.31M | $1,571 | 4bd 3ba 2,107sf | 0.21 mi | similar size | ||
| 316 Douglass St | 2026-04-09 | $4.2M | $3,695,000 | $505,000 above asking (13.7%) | $4.3M | $1,779 | 3bd 4ba 2,420sf | 0.16 mi | 3 bd | ||
| 282 Eureka St | 2026-03-30 | $3.9M | No asking price | — | $4.05M | $1,726 | 4bd 3ba 2,346sf | 0.19 mi | |||
| 32 Carson St | 2026-04-17 | $3.4M | $2,585,000 | $815,000 above asking (31.5%) | $3.48M | $2,087 | 3bd 3ba 1,670sf | 0.18 mi | 3 bd | ||
| 4118 20th St | 2026-04-29 | $4.4M | $2,995,000 | $1,405,000 above asking (46.9%) | $4.51M | $1,972 | 4bd 4ba 2,287sf | 0.32 mi | |||
| 308 Diamond St | 2025-11-12 | $3M | $2,750,000 | $250,000 above asking (9.1%) | $3.49M | $1,911 | 3bd 2ba 1,828sf | 0.25 mi | 3 bd | ||
| 306 Diamond St | 2025-11-13 | $2.6M | $1,750,000 | $850,000 above asking (48.6%) | $3.03M | $1,685 | 3bd 2ba 1,797sf | 0.24 mi | 3 bd | ||
| 3983 19th St | 2026-02-11 | $3.3M | $3,295,000 | $5,000 above asking (0.2%) | $3.53M | $1,598 | 4bd 3ba 2,208sf | 0.32 mi | similar size | ||
| 4799 19th St | 2026-04-06 | $2.23M | $1,785,000 | $440,000 above asking (24.6%) | $2.28M | $1,254 | 4bd 1ba 1,819sf | 0.34 mi | |||
| 359 Douglass St | 2026-03-11 | $2.06M | $1,195,000 | $860,000 above asking (72.0%) | $2.13M | $1,280 | 2bd 1ba 1,667sf | 0.18 mi | |||
| 441 Douglass St | 2026-05-18 | $4.5M | No asking price | — | $4.66M | $1,701 | 3bd 4ba 2,737sf | 0.28 mi | 3 bd | ||
| 323 Eureka St | 2026-03-12 | $5M | $3,495,000 | $1,504,999 above asking (43.1%) | $5.19M | $2,016 | 4bd 4ba 2,576sf | 0.26 mi | |||
| 221 Danvers St | 2026-07-14 | $4.55M | $3,995,000 | $555,000 above asking (13.9%) | $4.84M | $1,662 | 3bd 4ba 2,912sf | 0.29 mi | 3 bd | ||
| 27 Saturn St | 2025-11-17 | $2.6M | $2,700,000 | $100,000 below asking (3.7%) | $3.03M | $1,525 | 3bd 2ba 1,985sf | 0.24 mi | similar size, 3 bd | ||
| 135 Corbett Ave | 2026-05-07 | $2.6M | $1,950,000 | $650,000 above asking (33.3%) | $2.69M | $1,642 | 3bd 2ba 1,638sf | 0.20 mi | 3 bd | ||
| 359 Diamond St | 2026-02-04 | $2.23M | No asking price | — | $2.39M | $1,542 | 3bd 2ba 1,550sf | 0.28 mi | 3 bd | ||
| 143 Collingwood St | 2026-06-08 | $4.85M | $3,695,000 | $1,155,000 above asking (31.3%) | $5.03M | $1,736 | 4bd 4ba 2,895sf | 0.12 mi | |||
| 701 Castro St | 2026-04-21 | $4.29M | No asking price | — | $4.4M | $3,026 | 2ba 1,453sf | 0.28 mi | |||
| 278 Eureka St | 2026-01-02 | $2.52M | No asking price | — | $2.94M | $2,029 | 3bd 1ba 1,450sf | 0.19 mi | 3 bd | ||
| 4789 19th St | 2026-05-29 | $2.52M | $1,995,000 | $530,000 above asking (26.6%) | $2.61M | $1,786 | 2bd 2ba 1,463sf | 0.33 mi | |||
| 4376 17th St | 2026-04-15 | $3.4M | $3,295,000 | $105,000 above asking (3.2%) | $3.48M | $1,144 | 3bd 4ba 3,045sf | 0.29 mi | 3 bd | ||
| 279 Diamond St | 2026-01-28 | $4.58M | $3,495,000 | $1,085,000 above asking (31.0%) | $5.34M | $1,773 | 4bd 3ba 3,010sf | 0.18 mi | |||
| 335 Diamond St | 2026-04-08 | $6.42M | $6,800,000 | $375,000 below asking (5.5%) | $6.58M | $2,072 | 3bd 3ba 3,178sf | 0.26 mi | 3 bd | ||
| 4822 19th St | 2025-12-17 | $3.48M | $3,475,000 | At asking | $4.11M | $1,440 | 4bd 5ba 2,855sf | 0.34 mi | |||
| 4555 19th St | 2026-06-18 | $1.85M | No asking price | — | $1.92M | $1,679 | 2bd 1ba 1,142sf | 0.17 mi | |||
| 4 Ord Ct | 2026-03-13 | $1.7M | $1,750,000 | $50,000 below asking (2.9%) | $1.77M | $1,509 | 2bd 2ba 1,170sf | 0.24 mi | |||
| 49 Eagle St | 2025-12-11 | $5.63M | No asking price | — | $6.66M | $2,024 | 4bd 5ba 3,290sf | 0.33 mi | |||
| 145 Grand View Ave | 2026-07-17 | $3.1M | No asking price | — | $3.3M | $2,795 | 1ba 1,180sf | 0.34 mi | |||
| 3775 16th St | 2025-10-29 | $2.42M | $1,995,000 | $425,000 above asking (21.3%) | $2.77M | $2,137 | 4bd 2ba 1,295sf | 0.23 mi | |||
| 35 Hattie Street | 2025-11-25 | $2.13M | $2,190,000 cut from $2.9M | $63,400 below asking (2.9%) | $2.48M | $984 | 5bd 5ba 2,518sf | 0.17 mi |
This home's sale history
- 2021-12-17: $3,075,000 (price inferred from public records, low confidence)