21747 Orange Ave
Castro Valley, CA 94546
4 bd 2 ba 1,648 sqft Built 1942 Lot 7,812 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 | $599,654 | $227,562 | $827,216 | $11,577 |
| 2024 | $599,654 | $227,562 | $827,216 | $11,280 |
| 2023 | $576,371 | $218,726 | $795,097 | $11,061 |
| 2022 | $402,071 | $214,438 | $616,509 | $8,684 |
| 2021 | $394,188 | $210,234 | $604,422 | $8,117 |
| 2020 | $390,150 | $208,080 | $598,230 | $8,013 |
| 2019 | $382,500 | $204,000 | $586,500 | $8,075 |
| 2018 | $375,000 | $200,000 | $575,000 | $7,582 |
| 2017 | $212,498 | $91,070 | $303,568 | $4,344 |
| 2016 | $208,333 | $89,285 | $297,618 | $4,093 |
| 2015 | $205,205 | $87,945 | $293,150 | $3,981 |
| 2014 | $201,185 | $86,222 | $287,407 | $3,767 |
| 2013 | $200,277 | $85,833 | $286,110 | $3,715 |
| 2012 | $196,350 | $84,150 | $280,500 | $3,635 |
| 2010 | $192,500 | $82,500 | $275,000 | $3,693 |
| 2009 | $204,400 | $87,600 | $292,000 | $4,064 |
| 2008 | $315,000 | $135,000 | $450,000 | $5,379 |
| 2007 | $254,495 | $109,069 | $363,564 | $4,105 |
Property facts
Year built
1942
Property type
single_family
Stories
1
Beds
4
Baths
2
Living area
1,648 sqft
Lot size
7,812 sqft
ZIP code
94546
City
Castro Valley
Street
Orange Ave
Coordinates
37.68581, -122.08021
Comparable properties nearby
Frequently asked questions
When did 21747 Orange Ave last sell?
No public-record sale is on file for 21747 Orange Ave.
What is the current tax assessment for 21747 Orange Ave?
The most recent total assessment for 21747 Orange Ave (year 2025) is $827,216 with $11,577 in property tax.
When was 21747 Orange Ave built?
21747 Orange Ave was built in 1942.
How does 21747 Orange Ave compare to others on Orange Ave?
We track 8 other properties on Orange Ave. Browse the list under "Other properties on Orange Ave" to compare beds, baths, and sale history.
What are the property facts for 21747 Orange Ave?
21747 Orange Ave is a 4 bed, 2 bath, 1,648 sqft, 7,812 sqft lot single_family.
Is 21747 Orange Ave a flip candidate?
No — 21747 Orange Ave does not appear in our flips dataset.
Is 21747 Orange Ave a tax-appeal candidate?
No — 21747 Orange 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 Orange Ave