Home › Castro/Upper Market › 18th St
4515A 18th St
Condo, 3 bd, 1 ba, 1,907 sqft, built 1908
Today’s estimate uses 1,907 sqft and the home’s latest facts. It does not estimate the home’s value at a past sale date.
40 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
Low confidence
$2,280,000
From 39 comps at a weighted median of $1,196 per sqft.
- Block
- 2691
- Lot
- 065
- 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: 5.8% above final asking.
Middle half: 2.7% below asking to 17.5% above asking.
29 of 39 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 (40)
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98 Caselli Ave | 2026-04-17 | $1.3M | $1,400,000 | $100,000 below asking (7.1%) | $1.31M | $747 | 3bd 2ba 1,760sf | 0.10 mi | similar size, 3 bd | ||
| 150 Eureka St #101 | 2026-04-14 | $720K | No asking price | — | $728K | — | 2bd 2ba | 0.07 mi | no size on record | ||
| 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 | 0.30 mi | 3 bd, recent | ||
| 143 Ord St | 2026-05-05 | $1.33M | $1,295,000 | $35,000 above asking (2.7%) | $1.36M | $825 | 2bd 1ba 1,653sf | 0.07 mi | |||
| 4038 18th St | 2025-12-03 | $1.75M | $1,799,000 cut from $1.95M | $49,000 below asking (2.7%) | $2.02M | $1,017 | 3bd 3ba 1,985sf | 0.33 mi | same street, similar size, 3 bd | ||
| 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 | 0.09 mi | recent | ||
| 4054 18th St | 2026-03-20 | $350K | No asking price | — | $362K | $229 | 3bd 1ba 1,582sf | 0.31 mi | same street, 3 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 | 0.10 mi | |||
| 4660 18th St | 2025-12-03 | $2.4M | $2,499,000 | $99,000 below asking (4.0%) | $2.77M | $1,203 | 4bd 4ba 2,300sf | 0.16 mi | same street | ||
| 536 Roosevelt Way | 2026-09-14 | $2.3M | $1,795,000 | $505,000 above asking (28.1%) | $2.3M | $1,336 | 3bd 3ba 1,722sf | 0.32 mi | 3 bd, recent | ||
| 170 Corwin St | 2026-06-08 | $2.39M | Unclear | — | $2.49M | $1,127 | 4bd 2ba 2,210sf | 0.17 mi | |||
| 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 | 0.34 mi | 3 bd | ||
| 60 Danvers St | 2026-06-18 | $1.75M | $1,699,000 | $51,000 above asking (3.0%) | $1.82M | $1,148 | 3bd 2ba 1,588sf | 0.22 mi | 3 bd | ||
| 138 Saturn St | 2026-07-22 | $1.8M | No asking price | — | $1.9M | $1,411 | 3bd 2ba 1,346sf | 0.27 mi | 3 bd | ||
| 1460 Clayton Street | 2026-07-06 | $1.65M | $1,677,888 | $27,888 below asking (1.7%) | $1.74M | $768 | 3bd 3ba 2,265sf | 0.32 mi | 3 bd | ||
| 3645 Market St APT 2 | 2026-07-15 | $2.26M | $1,695,000 | $565,000 above asking (33.3%) | $2.38M | $1,321 | 3bd 4ba 1,804sf | 0.34 mi | similar size, 3 bd | ||
| 48 Caselli Ave | 2026-10-16 | $1.5M | $1,395,000 | $105,000 above asking (7.5%) | $1.46M | $1,280 | 2bd 1ba 1,140sf | 0.06 mi | recent | ||
| 4052 18th St | 2026-06-24 | $1.43M | No asking price | — | $1.48M | $1,088 | 2bd 3ba 1,364sf | 0.31 mi | same street | ||
| 317 Douglass St | 2026-02-03 | $1.17M | No asking price | — | $1.25M | $954 | 3bd 1ba 1,309sf | 0.12 mi | 3 bd | ||
| 222 States St | 2026-03-26 | $2.1M | $1,795,000 | $310,000 above asking (17.3%) | $2.17M | $1,554 | 2bd 2ba 1,399sf | 0.26 mi | |||
| 50 Collingwood St | 2026-10-16 | $2M | $1,599,000 | $401,000 above asking (25.1%) | $1.95M | $1,443 | 2bd 2ba 1,348sf | 0.20 mi | recent | ||
| 4150 17th St APT 2 | 2026-06-16 | $1.93M | No asking price | — | $2.01M | $1,279 | 2bd 2ba 1,575sf | 0.16 mi | |||
| 3043 Market St | 2026-09-15 | $852K | No asking price | — | $852K | $759 | 2bd 1ba 1,122sf | 0.13 mi | recent | ||
| 189 Collingwood St | 2026-07-22 | $1.67M | No asking price | — | $1.76M | $1,335 | 2bd 2ba 1,321sf | 0.23 mi | |||
| 4322 17th St #A | 2026-01-28 | $1.82M | $1,549,000 | $271,000 above asking (17.5%) | $2.09M | $1,313 | 3bd 3ba 1,589sf | 0.15 mi | 3 bd | ||
| 307 Castro St #2 | 2026-06-15 | $1.95M | No asking price | — | $2.03M | $1,555 | 2bd 2ba 1,306sf | 0.35 mi | |||
| 227 States St | 2026-06-16 | $2.5M | $1,995,000 | $505,000 above asking (25.3%) | $2.6M | $1,583 | 2bd 3ba 1,645sf | 0.24 mi | |||
| 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 | 0.20 mi | 3 bd | ||
| 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 | 0.34 mi | 3 bd | ||
| 45 Seward St #2 | 2026-10-15 | $2.9M | $2,795,000 | $105,000 above asking (3.8%) | $2.82M | $979 | 4bd 3ba 2,882sf | 0.17 mi | recent | ||
| 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 | 0.18 mi | |||
| 49 Seward St #1 | 2025-11-04 | $1.73M | $1,495,000 | $230,000 above asking (15.4%) | $1.95M | $1,343 | 2bd 2ba 1,454sf | 0.15 mi | |||
| 28 Flint St | 2025-10-30 | $2.4M | $2,500,000 | $100,000 below asking (4.0%) | $2.72M | $1,191 | 4bd 3ba 2,280sf | 0.33 mi | |||
| 42 Ord St | 2026-04-17 | $4.1M | $2,795,000 | $1,305,000 above asking (46.7%) | $4.15M | $1,679 | 3bd 4ba 2,470sf | 0.19 mi | 3 bd | ||
| 4527 18th St | 2026-05-11 | $1.3M | $995,000 | $305,000 above asking (30.7%) | $1.33M | $1,207 | 1bd 1ba 1,105sf | <0.05 mi | nearby on same street | ||
| 39 Douglass St | 2026-05-18 | $1.25M | $1,045,000 | $205,000 above asking (19.6%) | $1.28M | $1,196 | 2bd 1ba 1,072sf | 0.18 mi | |||
| 40 Levant St | 2026-06-29 | $1.82M | $1,595,000 | $230,000 above asking (14.4%) | $1.9M | $1,518 | 3bd 2ba 1,252sf | 0.32 mi | 3 bd | ||
| 3620 Market St APT 3 | 2026-05-13 | $1.27M | $995,000 | $280,000 above asking (28.1%) | $1.31M | $1,009 | 2bd 3ba 1,296sf | 0.34 mi | |||
| 77 Grand View Ave APT 301 | 2026-07-22 | $980K | $1,000,000 cut from $1.2M | $20,000 below asking (2.0%) | $1.03M | $940 | 2bd 2ba 1,100sf | 0.25 mi | |||
| 60 States St | 2026-03-27 | $1.3M | No asking price | — | $1.34M | $1,233 | 2bd 1ba 1,089sf | 0.28 mi |