309 42nd Ave
San Mateo, CA 94403
3 bd 1 ba 1,230 sqft Built 1953 Lot 8,700 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $378,308 | $1,190,674 | $1,568,982 | $19,851 |
| 2024 | $378,308 | $1,190,674 | $1,568,982 | $19,945 |
| 2023 | $363,619 | $1,144,440 | $1,508,059 | $19,305 |
| 2022 | $356,490 | $1,122,000 | $1,478,490 | $18,880 |
| 2021 | $349,500 | $1,100,000 | $1,449,500 | $18,276 |
| 2020 | $483,898 | $483,898 | $967,796 | $12,131 |
| 2019 | $474,410 | $474,410 | $948,820 | $11,650 |
| 2018 | $465,108 | $465,108 | $930,216 | $11,089 |
| 2017 | $455,989 | $455,989 | $911,978 | $10,796 |
| 2016 | $447,049 | $447,049 | $894,098 | $10,694 |
| 2015 | $440,334 | $440,334 | $880,668 | $10,435 |
| 2014 | $431,709 | $431,709 | $863,418 | $10,696 |
| 2013 | $394,500 | $394,500 | $789,000 | $9,689 |
| 2012 | $369,000 | $368,000 | $737,000 | $8,651 |
| 2011 | $369,000 | $368,000 | $737,000 | $8,563 |
| 2010 | $409,984 | $409,984 | $819,968 | $9,403 |
| 2009 | $410,958 | $410,958 | $821,916 | $9,416 |
| 2008 | $402,900 | $402,900 | $805,800 | $9,080 |
| 2007 | $395,000 | $395,000 | $790,000 | $8,792 |
Property facts
Year built
1953
Property type
single_family
Stories
1
Beds
3
Baths
1
Living area
1,230 sqft
Lot size
8,700 sqft
ZIP code
94403
City
San Mateo
Street
42nd Ave
Coordinates
37.52637, -122.30053
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 309 42nd Ave last sell?
No public-record sale is on file for 309 42nd Ave.
What is the current tax assessment for 309 42nd Ave?
The most recent total assessment for 309 42nd Ave (year 2025) is $1,568,982 with $19,851 in property tax.
When was 309 42nd Ave built?
309 42nd Ave was built in 1953.
How does 309 42nd Ave compare to others on 42nd Ave?
We track 8 other properties on 42nd Ave. Browse the list under "Other properties on 42nd Ave" to compare beds, baths, and sale history.
What are the property facts for 309 42nd Ave?
309 42nd Ave is a 3 bed, 1 bath, 1,230 sqft, 8,700 sqft lot single_family.
Is 309 42nd Ave a flip candidate?
No — 309 42nd Ave does not appear in our flips dataset.
Is 309 42nd Ave a tax-appeal candidate?
No — 309 42nd Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.9%
Implied 1-yr
+7.7%
2026 Q3
$2.08M
2026 Q4
$2.11M
ZIP 94403 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 42nd Ave