4225 Gem Ave
Castro Valley, CA 94546
3 bd 1 ba 1,080 sqft Built 1947 Lot 5,775 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 | $479,079 | $204,258 | $683,337 | $8,850 |
| 2024 | $479,079 | $204,258 | $683,337 | $8,650 |
| 2023 | $460,478 | $196,328 | $656,806 | $8,509 |
| 2022 | $451,450 | $192,478 | $643,928 | $8,343 |
| 2021 | $442,600 | $188,705 | $631,305 | $8,128 |
| 2020 | $438,063 | $186,771 | $624,834 | $7,942 |
| 2019 | $429,477 | $183,110 | $612,587 | $8,086 |
| 2018 | $421,056 | $179,520 | $600,576 | $7,857 |
| 2017 | $412,800 | $176,000 | $588,800 | $7,649 |
| 2016 | $287,751 | $123,321 | $411,072 | $5,342 |
| 2015 | $283,431 | $121,470 | $404,901 | $4,993 |
| 2014 | $277,881 | $119,092 | $396,973 | $4,923 |
| 2013 | $276,627 | $118,554 | $395,181 | $4,878 |
| 2012 | $271,204 | $116,230 | $387,434 | $4,776 |
| 2010 | $265,887 | $113,951 | $379,838 | $1,019 |
| 2009 | $24,123 | $30,011 | $54,134 | $1,010 |
| 2008 | $23,706 | $29,492 | $53,198 | $935 |
| 2007 | $23,241 | $28,914 | $52,155 | $907 |
Property facts
Year built
1947
Property type
single_family
Stories
1
Beds
3
Baths
1
Living area
1,080 sqft
Lot size
5,775 sqft
ZIP code
94546
City
Castro Valley
Street
Gem Ave
Coordinates
37.69823, -122.06469
Comparable properties nearby
Frequently asked questions
When did 4225 Gem Ave last sell?
No public-record sale is on file for 4225 Gem Ave.
What is the current tax assessment for 4225 Gem Ave?
The most recent total assessment for 4225 Gem Ave (year 2025) is $683,337 with $8,850 in property tax.
When was 4225 Gem Ave built?
4225 Gem Ave was built in 1947.
How does 4225 Gem Ave compare to others on Gem Ave?
We track 8 other properties on Gem Ave. Browse the list under "Other properties on Gem Ave" to compare beds, baths, and sale history.
What are the property facts for 4225 Gem Ave?
4225 Gem Ave is a 3 bed, 1 bath, 1,080 sqft, 5,775 sqft lot single_family.
Is 4225 Gem Ave a flip candidate?
No — 4225 Gem Ave does not appear in our flips dataset.
Is 4225 Gem Ave a tax-appeal candidate?
No — 4225 Gem 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
-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 Gem Ave