18880 Walnut Rd
Castro Valley, CA 94546
2 bd 1 ba 1,250 sqft Built 1948 Lot 29,760 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 | $840,000 | $360,000 | $1,200,000 | $15,030 |
| 2024 | $840,000 | $360,000 | $1,200,000 | $14,064 |
| 2023 | $770,000 | $330,000 | $1,100,000 | $13,853 |
| 2022 | $111,236 | $436,700 | $547,936 | $7,283 |
| 2021 | $109,055 | $428,140 | $537,195 | $7,096 |
| 2020 | $107,938 | $423,753 | $531,691 | $6,934 |
| 2019 | $103,861 | $415,446 | $519,307 | $7,035 |
| 2018 | $101,825 | $407,302 | $509,127 | $6,837 |
| 2017 | $99,829 | $399,318 | $499,147 | $6,658 |
| 2016 | $97,872 | $391,491 | $489,363 | $6,336 |
| 2015 | $96,403 | $385,612 | $482,015 | $5,923 |
| 2014 | $94,515 | $378,060 | $472,575 | $5,849 |
| 2013 | $94,088 | $376,355 | $470,443 | $5,801 |
| 2012 | $92,244 | $368,976 | $461,220 | $5,685 |
| 2010 | $90,436 | $361,744 | $452,180 | $5,570 |
| 2009 | $89,760 | $359,043 | $448,803 | $5,593 |
| 2008 | $88,210 | $352,841 | $441,051 | $5,414 |
| 2007 | $86,480 | $345,923 | $432,403 | $5,280 |
Property facts
Year built
1948
Property type
single_family
Stories
1
Beds
2
Baths
1
Living area
1,250 sqft
Lot size
29,760 sqft
ZIP code
94546
City
Castro Valley
Street
Walnut Rd
Coordinates
37.71175, -122.08759
Comparable properties nearby
Frequently asked questions
When did 18880 Walnut Rd last sell?
No public-record sale is on file for 18880 Walnut Rd.
What is the current tax assessment for 18880 Walnut Rd?
The most recent total assessment for 18880 Walnut Rd (year 2025) is $1,200,000 with $15,030 in property tax.
When was 18880 Walnut Rd built?
18880 Walnut Rd was built in 1948.
How does 18880 Walnut Rd compare to others on Walnut Rd?
We track 8 other properties on Walnut Rd. Browse the list under "Other properties on Walnut Rd" to compare beds, baths, and sale history.
What are the property facts for 18880 Walnut Rd?
18880 Walnut Rd is a 2 bed, 1 bath, 1,250 sqft, 29,760 sqft lot single_family.
Is 18880 Walnut Rd a flip candidate?
No — 18880 Walnut Rd does not appear in our flips dataset.
Is 18880 Walnut Rd a tax-appeal candidate?
No — 18880 Walnut 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
-2.1%
Implied 1-yr
-8.4%
2026 Q3
$875.4K
2026 Q4
$875.4K
ZIP 94546 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Walnut Rd