3909 Happy Valley Rd
Lafayette, CA 94549
4 bd 3 ba 3,681 sqft Built 1974 Lot 23,958 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 | $795,586 | $1,731,890 | $2,527,476 | $29,600 |
| 2024 | $795,586 | $1,731,890 | $2,527,476 | $29,102 |
| 2023 | $764,694 | $1,664,640 | $2,429,334 | $28,611 |
| 2022 | $749,700 | $1,632,000 | $2,381,700 | $28,177 |
| 2021 | $688,273 | $161,745 | $850,018 | $11,144 |
| 2020 | $681,216 | $160,087 | $841,303 | $11,137 |
| 2019 | $667,859 | $156,949 | $824,808 | $10,745 |
| 2018 | $654,764 | $153,872 | $808,636 | $10,369 |
| 2017 | $641,926 | $150,855 | $792,781 | $13,720 |
| 2016 | $629,340 | $147,898 | $777,238 | $9,989 |
| 2015 | $619,887 | $145,677 | $765,564 | $9,716 |
| 2014 | $607,745 | $142,824 | $750,569 | $9,617 |
| 2013 | $604,999 | $142,179 | $747,178 | $9,495 |
| 2012 | $593,137 | $139,392 | $732,529 | $9,208 |
| 2011 | $581,507 | $136,659 | $718,166 | $9,061 |
| 2010 | $577,161 | $135,638 | $712,799 | $8,798 |
| 2009 | $578,533 | $135,961 | $714,494 | $8,716 |
| 2008 | $567,190 | $133,296 | $700,486 | $8,568 |
| 2007 | $556,069 | $130,683 | $686,752 | $8,220 |
Property facts
Year built
1974
Property type
single_family
Stories
1
Beds
4
Baths
3
Living area
3,681 sqft
Lot size
23,958 sqft
ZIP code
94549
City
Lafayette
Street
Happy Valley Rd
Coordinates
37.90397, -122.14593
Comparable properties nearby
Frequently asked questions
When did 3909 Happy Valley Rd last sell?
No public-record sale is on file for 3909 Happy Valley Rd.
What is the current tax assessment for 3909 Happy Valley Rd?
The most recent total assessment for 3909 Happy Valley Rd (year 2025) is $2,527,476 with $29,600 in property tax.
When was 3909 Happy Valley Rd built?
3909 Happy Valley Rd was built in 1974.
How does 3909 Happy Valley Rd compare to others on Happy Valley Rd?
We track 8 other properties on Happy Valley Rd. Browse the list under "Other properties on Happy Valley Rd" to compare beds, baths, and sale history.
What are the property facts for 3909 Happy Valley Rd?
3909 Happy Valley Rd is a 4 bed, 3 bath, 3,681 sqft, 23,958 sqft lot single_family.
Is 3909 Happy Valley Rd a flip candidate?
No — 3909 Happy Valley Rd does not appear in our flips dataset.
Is 3909 Happy Valley Rd a tax-appeal candidate?
No — 3909 Happy Valley Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.8%
Implied 1-yr
+11.3%
2026 Q3
$3.4M
2026 Q4
$3.4M
ZIP 94549 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Happy Valley Rd