Home › Castro/Upper Market › 18th St
4037A 18th St
Condo, 2 bd, 2 ba, 1,100 sqft, built 1879
Today’s estimate uses 1,100 sqft and the home’s latest facts. It does not estimate the home’s value at a past sale date.
54 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
$1,431,000
$1,102,000estimated range$1,760,000
From 53 comps at a weighted median of $1,301 per sqft.
- Block
- 3583
- Lot
- 129
- Sales
- Oct 2025 to Oct 2026
- Prices adjusted to
- 2026-10-30
- Within
- 0.35 mi
- Sold since
- Apr 2025
What other buyers offered
No one has reported a losing offer on this home yet.
Create a free account to see offers and add yours
Free, and there is no password: we email you a sign-in code. Already a member? The same button signs you in.
Interested in this home?
Answer a few quick questions and we'll show you what to do next, from getting pre-approved to making an offer.
I'm interestedSale prices versus asking
Similarity-weighted median: 16.7% above final asking.
Middle half: 1.6% above asking to 22.6% above asking.
43 of 53 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 (54)
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4021 19th St | 2026-05-15 | $1.3M | $1,279,500 cut from $1.35M | $20,500 above asking (1.6%) | $1.33M | $1,246 | 2bd 2ba 1,070sf | 0.11 mi | similar size, 2 bd | ||
| 3477 16th St | 2026-10-23 | $1.25M | $998,000 | $252,000 above asking (25.3%) | $1.22M | $1,203 | 2bd 1ba 1,011sf | 0.29 mi | similar size, 2 bd, recent | ||
| 4052 18th St | 2026-06-24 | $1.43M | No asking price | — | $1.48M | $1,088 | 2bd 3ba 1,364sf | <0.05 mi | nearby on same street, 2 bd | ||
| 340 Sanchez St | 2026-03-11 | $1.5M | $1,285,000 | $215,000 above asking (16.7%) | $1.55M | $1,397 | 2bd 1ba 1,109sf | 0.24 mi | similar size, 2 bd | ||
| 150 Eureka St #101 | 2026-04-14 | $720K | No asking price | — | $728K | — | 2bd 2ba | 0.28 mi | 2 bd, no size on record | ||
| 4316 18th St | 2026-05-21 | $1.2M | $1,188,000 cut from $1.2M | $12,000 above asking (1.0%) | $1.23M | $1,197 | 2bd 1ba 1,028sf | 0.22 mi | same street, similar size, 2 bd | ||
| 32 Pond St | 2026-05-22 | $1.35M | $1,249,000 | $106,000 above asking (8.5%) | $1.39M | $1,421 | 2bd 1ba 978sf | 0.21 mi | 2 bd | ||
| 728 Castro St | 2026-04-22 | $1.6M | $1,325,000 | $275,500 above asking (20.8%) | $1.62M | $1,375 | 2bd 2ba 1,177sf | 0.28 mi | similar size, 2 bd | ||
| 3481 16th St | 2026-07-30 | $1.44M | $1,198,000 | $237,000 above asking (19.8%) | $1.51M | $1,275 | 3bd 1ba 1,187sf | 0.29 mi | similar size | ||
| 125 Eureka St | 2026-10-19 | $2.12M | $1,695,000 | $420,000 above asking (24.8%) | $2.06M | $1,524 | 2bd 2ba 1,350sf | 0.24 mi | 2 bd, recent | ||
| 615 Noe St #2 | 2026-06-23 | $1.4M | $1,400,000 | At asking | $1.46M | $1,301 | 2bd 1ba 1,121sf | 0.13 mi | similar size, 2 bd | ||
| 487 Sanchez St | 2026-04-14 | $1.05M | $929,000 | $121,000 above asking (13.0%) | $1.06M | $1,087 | 2bd 1ba 977sf | 0.18 mi | 2 bd | ||
| 46 Hancock St | 2026-06-18 | $1.96M | $1,595,000 | $360,000 above asking (22.6%) | $2.04M | $1,633 | 2bd 1ba 1,247sf | 0.23 mi | 2 bd | ||
| 3892 19th St | 2026-10-08 | $1.75M | $1,498,000 | $252,000 above asking (16.8%) | $1.7M | $1,838 | 2bd 2ba 926sf | 0.20 mi | 2 bd, recent | ||
| 307 Castro St #2 | 2026-06-15 | $1.95M | No asking price | — | $2.03M | $1,555 | 2bd 2ba 1,306sf | 0.23 mi | 2 bd | ||
| 27 Ford St | 2026-09-18 | $2.2M | $1,795,000 | $405,000 above asking (22.6%) | $2.2M | $1,546 | 2bd 2ba 1,423sf | 0.14 mi | 2 bd, recent | ||
| 189 Collingwood St | 2026-07-22 | $1.67M | No asking price | — | $1.76M | $1,335 | 2bd 2ba 1,321sf | 0.15 mi | 2 bd | ||
| 50 Collingwood St | 2026-10-16 | $2M | $1,599,000 | $401,000 above asking (25.1%) | $1.95M | $1,443 | 2bd 2ba 1,348sf | 0.17 mi | 2 bd, recent | ||
| 60 States St | 2026-03-27 | $1.3M | No asking price | — | $1.34M | $1,233 | 2bd 1ba 1,089sf | 0.25 mi | similar size, 2 bd | ||
| 85 Sharon St | 2026-06-08 | $880K | $899,000 | $19,000 below asking (2.1%) | $917K | $1,050 | 2bd 1ba 873sf | 0.35 mi | 2 bd | ||
| 4054 18th St | 2026-03-20 | $350K | No asking price | — | $362K | $229 | 3bd 1ba 1,582sf | <0.05 mi | nearby on same street | ||
| 3456 16th St | 2026-10-13 | $2.08M | $1,695,000 | $380,000 above asking (22.4%) | $2.02M | $1,282 | 2bd 3ba 1,575sf | 0.33 mi | 2 bd, recent | ||
| 3868 21st St | 2026-03-11 | $1.67M | $1,395,000 | $270,000 above asking (19.4%) | $1.72M | $1,322 | 3bd 2ba 1,301sf | 0.31 mi | |||
| 65 Collingwood St APT 1 | 2025-11-14 | $1.17M | $1,059,000 | $111,000 above asking (10.5%) | $1.32M | $1,379 | 2bd 1ba 960sf | 0.14 mi | 2 bd | ||
| 627 Castro St | 2026-10-14 | $2.34M | $1,995,000 | $345,000 above asking (17.3%) | $2.28M | $1,380 | 3bd 2ba 1,650sf | 0.14 mi | recent | ||
| 317 Douglass St | 2026-02-03 | $1.17M | No asking price | — | $1.25M | $954 | 3bd 1ba 1,309sf | 0.33 mi | |||
| 212 Eureka St | 2026-08-18 | $1.25M | $1,088,000 | $167,000 above asking (15.3%) | $1.3M | $1,716 | 2bd 1ba 760sf | 0.29 mi | 2 bd, recent | ||
| 3665 17th St | 2026-09-21 | $2.21M | $1,495,000 | $713,900 above asking (47.8%) | $2.21M | $1,368 | 2bd 1ba 1,615sf | 0.35 mi | 2 bd, recent | ||
| 214 Castro St | 2026-04-27 | $1.98M | $1,495,000 | $480,000 above asking (32.1%) | $2M | $1,456 | 2bd 2ba 1,372sf | 0.34 mi | 2 bd | ||
| 214 Eureka St | 2026-02-25 | $1.25M | $1,088,000 | $162,000 above asking (14.9%) | $1.34M | $1,610 | 2bd 1ba 832sf | 0.29 mi | 2 bd | ||
| 4416 19th St | 2026-03-13 | $1.9M | $1,795,000 | $105,000 above asking (5.8%) | $1.96M | $1,328 | 2bd 2ba 1,478sf | 0.29 mi | 2 bd | ||
| 146 Beaver St | 2026-05-13 | $1.23M | $1,095,000 | $130,000 above asking (11.9%) | $1.26M | $1,404 | 1bd 1ba 895sf | 0.33 mi | |||
| 677 Castro St APT 3 | 2026-06-23 | $920K | $899,000 | $21,000 above asking (2.3%) | $958K | $1,229 | 1bd 1ba 780sf | 0.19 mi | |||
| 618 Sanchez St | 2026-07-17 | $2.3M | $2,399,000 | $99,000 below asking (4.1%) | $2.43M | $1,838 | 2bd 3ba 1,320sf | 0.20 mi | 2 bd | ||
| 305 Castro St #100 | 2026-04-08 | $1.47M | No asking price | — | $1.49M | $1,233 | 1,206sf | 0.23 mi | similar size | ||
| 609 Castro St APT B | 2026-06-08 | $904K | $849,000 | $54,500 above asking (6.4%) | $941K | $1,298 | 1bd 1ba 725sf | 0.13 mi | |||
| 2238 Market St #407 | 2026-08-03 | $1.41M | $1,420,000 cut from $1.45M | $15,000 below asking (1.1%) | $1.46M | $1,279 | 2bd 2ba 1,142sf | 0.33 mi | similar size, 2 bd, recent | ||
| 39 Hancock St | 2026-05-08 | $1.83M | $1,495,000 | $336,200 above asking (22.5%) | $1.88M | $1,529 | 2bd 2ba 1,228sf | 0.25 mi | 2 bd | ||
| 12 Beaver St | 2026-09-28 | $1.5M | $1,505,000 | At asking | $1.5M | $926 | 4bd 2ba 1,626sf | 0.30 mi | recent | ||
| 39 Hartford St | 2025-12-04 | $1.71M | $1,399,000 | $306,000 above asking (21.9%) | $1.97M | $1,190 | 3bd 2ba 1,652sf | 0.08 mi | |||
| 2425 Market St APT 6 | 2026-04-17 | $1.2M | $995,000 | $205,000 above asking (20.6%) | $1.21M | $1,416 | 2bd 1ba 857sf | 0.15 mi | 2 bd | ||
| 143 Ord St | 2026-05-05 | $1.33M | $1,295,000 | $35,000 above asking (2.7%) | $1.36M | $825 | 2bd 1ba 1,653sf | 0.35 mi | 2 bd | ||
| 3472 16th St | 2026-05-29 | $1.98M | $1,388,000 | $592,000 above asking (42.7%) | $2.03M | $1,253 | 2bd 2ba 1,620sf | 0.32 mi | 2 bd | ||
| 209 Noe St | 2026-03-20 | $1.75M | $1,795,000 | $45,000 below asking (2.5%) | $1.81M | $1,247 | 2bd 2ba 1,450sf | 0.34 mi | 2 bd | ||
| 29 Hancock St | 2025-10-28 | $1.73M | $1,495,000 | $233,000 above asking (15.6%) | $1.95M | $1,675 | 2bd 2ba 1,167sf | 0.25 mi | similar size, 2 bd | ||
| 33 Hancock St | 2025-12-18 | $1.76M | No asking price | — | $2.03M | $1,675 | 2bd 2ba 1,211sf | 0.25 mi | similar size, 2 bd | ||
| 4150 17th St APT 22 | 2026-05-27 | $2.3M | $1,795,000 | $505,000 above asking (28.1%) | $2.36M | $1,626 | 2bd 2ba 1,451sf | 0.30 mi | 2 bd | ||
| 2238 Market St #204 | 2026-02-27 | $1.35M | $1,345,000 | $5,000 above asking (0.4%) | $1.45M | $1,162 | 2bd 2ba 1,245sf | 0.33 mi | 2 bd | ||
| 4150 17th St APT 2 | 2026-06-16 | $1.93M | No asking price | — | $2.01M | $1,279 | 2bd 2ba 1,575sf | 0.30 mi | 2 bd | ||
| 161 Collingwood St | 2026-03-17 | $2.05M | $1,795,000 | $255,000 above asking (14.2%) | $2.12M | $1,317 | 3bd 3ba 1,608sf | 0.15 mi | |||
| 30 Flint St | 2025-11-14 | $1.73M | $1,695,000 cut from $1.75M | $30,000 above asking (1.8%) | $1.95M | $1,220 | 3bd 2ba 1,600sf | 0.32 mi | |||
| 620 Sanchez St | 2026-03-12 | $4.09M | No asking price | — | $4.22M | $2,346 | 3bd 2.5ba 1,800sf | 0.20 mi | |||
| 2238 Market St Unit 306 | 2026-08-17 | $775K | $845,000 cut from $899K | $70,000 below asking (8.3%) | $805K | $1,128 | 1bd 1ba 714sf | 0.33 mi | recent | ||
| 160 Hancock St APT 1 | 2026-03-16 | $2.5M | $2,150,000 | $350,000 above asking (16.3%) | $2.58M | $1,307 | 2bd 3ba 1,976sf | 0.09 mi | 2 bd |