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| Primary address | 3121 Somerset Avenue, Castro Valley |
| Alternate address(es) | 3123 Somerset Ave 3131 Somerset Ave |
| Zip code | 94546 |
| County | Alameda |
| Parcel ID | 84A-130-97 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $0 |
| Building sqft | 4,076 |
| Building class | Condominium Common Area or Use (7390) |
| Acreage | 0.18 |
| Units | 3 |
| Year built | 1985 |
| Stories | 2 |
| Bedrooms | 7 |
| Bathrooms | 6 |
| Zoning district | Two Family Residential (R2) |
| School district | Castro Vly Unif SCH |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
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3121 Somerset Avenue, Castro Valley, CA 94546 was built in 1985 and has a total of 4,076 square feet.
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Create a free account to view the complete sales history for 3121 Somerset Avenue, Castro Valley, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 3121 Somerset Avenue, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax | $0 |
| Market value | $0 |
The complete history of permits filed for 3121 Somerset Avenue, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.
Check out recently sold homes in Castro-Valley and see how their prices compare.
Create a free account to unlock extended information for 3121 Somerset Avenue, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 3121 Somerset Avenue, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Our Lady Of Grace School | NR | Private | K-8 | 218 | 0.15 |
| Castro Valley Elementary School | 6 | Public | K-5 | 472 | 0.30 |
| Anchor Education, Inc. | NR | Private | 3-12 | 18 | 0.36 |
| Anchor Education, Inc. School | NR | Private | 3-12 | 0 | 0.37 |
| Sterling West San Francisco Campus | NR | Private | 3-11 | 27 | 0.37 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Our Lady Of Grace School | NR | Private | K-8 | 218 | 0.15 |
| Anchor Education, Inc. | NR | Private | 3-12 | 18 | 0.36 |
| Anchor Education, Inc. School | NR | Private | 3-12 | 0 | 0.37 |
| Sterling West San Francisco Campus | NR | Private | 3-11 | 27 | 0.37 |
| Redwood Christian Schools | NR | Private | K-12 | 706 | 0.80 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Anchor Education, Inc. | NR | Private | 3-12 | 18 | 0.36 |
| Anchor Education, Inc. School | NR | Private | 3-12 | 0 | 0.37 |
| Sterling West San Francisco Campus | NR | Private | 3-11 | 27 | 0.37 |
| Castro Valley High School | 9 | Public | 9-12 | 2,799 | 0.52 |
| Redwood Christian Schools | NR | Private | K-12 | 706 | 0.80 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 3121 Somerset Avenue, Castro Valley.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 20196 Leroy Dr, Castro Valley | 1,179 | 02/01/2013 | |
| 20170 Butterfield Dr, Castro Valley | 1,400 | 12/13/2016 | |
| 20205 Anita Ave, Castro Valley | 1,080 | 07/09/2003 | |
| 3180 Castro Valley Blvd, Castro Valley | 9,952 | 06/30/2015 | $2,087,000 |
| 20042 Wisteria St, Castro Valley | 4,551 | 05/07/1997 | |
| 20524 Wisteria St, Castro Valley | 4,384 | 11/15/2018 | $755,000 |
| 20086 Wisteria St, Castro Valley | 13,748 | 11/14/2002 | $1,600,000 |
| 3270 Anita CT, Castro Valley | 3,022 | 12/14/2023 | $1,350,000 |
| 2806 Castro Valley Blvd, Castro Valley | 2,240 | 08/10/1999 | $765,000 |
| 20140 Wisteria St, Castro Valley | 909 | 09/11/2001 | |
| 20422 Wisteria St, Castro Valley | 3,480 | 06/09/2023 | |
| 3278 Anita CT, Castro Valley | 3,022 | 03/25/2015 | |
| 20026 Wisteria St, Castro Valley | 5,328 | 07/25/2019 | |
| 3650 Santa Maria CT, Castro Valley | 1,723 | ||
| 20528 Wisteria St, Castro Valley | 1,237 | 08/10/1999 | $765,000 |
| 20001 San Miguel Ave, Castro Valley | 3,173 | ||
| 20064 Wisteria St, Castro Valley | 1,730 | 02/17/2017 | |
| 20137 Anita Ave, Castro Valley |