3909 Oneill Dr
San Mateo, CA 94403
4 bd 3 ba 2,130 sqft Built 1950 Lot 5,001 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 | $895,758 | $1,338,620 | $2,234,378 | $28,051 |
| 2024 | $895,758 | $1,338,620 | $2,234,378 | $27,535 |
| 2023 | $860,976 | $1,286,641 | $2,147,617 | $28,499 |
| 2022 | $844,095 | $1,261,413 | $2,105,508 | $27,846 |
| 2021 | $827,545 | $1,236,680 | $2,064,225 | $25,382 |
| 2020 | $819,060 | $1,224,000 | $2,043,060 | $24,685 |
| 2019 | $803,000 | $1,200,000 | $2,003,000 | $23,873 |
| 2018 | $81,000 | $950,000 | $1,031,000 | $12,170 |
| 2017 | $230,980 | $230,980 | $461,960 | $5,591 |
| 2016 | $226,451 | $226,451 | $452,902 | $5,381 |
| 2015 | $223,050 | $223,050 | $446,100 | $5,241 |
| 2014 | $218,681 | $218,681 | $437,362 | $5,095 |
| 2013 | $217,693 | $217,693 | $435,386 | $5,055 |
| 2012 | $213,425 | $213,425 | $426,850 | $4,894 |
| 2011 | $209,241 | $209,241 | $418,482 | $4,794 |
| 2010 | $207,678 | $207,678 | $415,356 | $4,715 |
| 2009 | $208,172 | $208,172 | $416,344 | $4,713 |
| 2008 | $204,091 | $204,091 | $408,182 | $4,640 |
| 2007 | $200,090 | $200,090 | $400,180 | $4,528 |
Property facts
Year built
1950
Property type
single_family
Stories
1
Beds
4
Baths
3
Living area
2,130 sqft
Lot size
5,001 sqft
ZIP code
94403
City
San Mateo
Street
Oneill Dr
Coordinates
37.53674, -122.28572
Comparable properties nearby
Frequently asked questions
When did 3909 Oneill Dr last sell?
No public-record sale is on file for 3909 Oneill Dr.
What is the current tax assessment for 3909 Oneill Dr?
The most recent total assessment for 3909 Oneill Dr (year 2025) is $2,234,378 with $28,051 in property tax.
When was 3909 Oneill Dr built?
3909 Oneill Dr was built in 1950.
How does 3909 Oneill Dr compare to others on Oneill Dr?
We track 6 other properties on Oneill Dr. Browse the list under "Other properties on Oneill Dr" to compare beds, baths, and sale history.
What are the property facts for 3909 Oneill Dr?
3909 Oneill Dr is a 4 bed, 3 bath, 2,130 sqft, 5,001 sqft lot single_family.
Is 3909 Oneill Dr a flip candidate?
No — 3909 Oneill Dr does not appear in our flips dataset.
Is 3909 Oneill Dr a tax-appeal candidate?
No — 3909 Oneill Dr 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 Oneill Dr