New22$799,000
2 bd · 1 ba · 1,167 sqft
3257 Somerset Ave, Castro Valley, CA
Kenneth Papierniak · Kenneth Papierniak, Broker
Homes Under $1.25M in Castro Valley, CA
Hide MapHomes Under $1.25M in Castro Valley, CA
8 of 141 Listings
New22$799,000
2 bd · 1 ba · 1,167 sqft
3257 Somerset Ave, Castro Valley, CA
Kenneth Papierniak · Kenneth Papierniak, Broker
Open house Sat, Oct 3 · 1:00 PM33$1,088,888
3 bd · 3 ba · 1,443 sqft
7721 Summerhill Pl, Castro Valley, CA
Vandanjit Kaur · Alliance Bay Realty
Open house Sat, Oct 3 · 1:00 PM31$589,000
2 bd · 3 ba · 1,129 sqft
22093 Betlen Way, Castro Valley, CA
Helen Rahimzadeh · Christie's Intl RE Sereno
Open house Sat, Oct 3 · 2:00 PM16$998,000
4 bd · 2 ba · 1,293 sqft
3822 Vincent Court, Castro Valley, CA
Jinyue Wang · KW Advisors
Open house Sat, Oct 3 · 1:00 PM43$758,000
2 bd · 1 ba · 969 sqft
16133 Berkshire Dr, Castro Valley, CA
Vanessa Comfort · EXP Realty of California, Inc
Open house Sat, Oct 3 · 1:00 PM60$1,180,000
5 bd · 4 ba · 1,934 sqft
3270 Keith Ave, Castro Valley, CA
Shan Susan Gao · Compass
Open house Sat, Oct 3 · 1:00 PM93$1,198,000
5 bd · 3 ba · 2,379 sqft
2843 Jennifer Dr, Castro Valley, CA
Leo Zhang · RE/MAX Accord
74$998,000
4 bd · 2 ba · 1,665 sqft
16972 Rolando Avenue, Castro Valley, CA
Mindy Yasuda · Real Brokerage Technologies
Homes Under $1.25M in Castro Valley, CA: 141 active listings as of .
| Property type | Listings | Share |
|---|---|---|
| Single Family Residence | 89 | 63.1% |
| Townhouse | 32 | 22.7% |
| Condominium | 18 | 12.8% |






California Regional Multiple Listing Service (CRMLS)
Contra Costa Association of REALTORSSource: HJN community data
August 2026 · This period is still settling
Selling at 100.1% of asking price
Sales here are closing essentially at asking. MLS · 36 sales · as of Aug 31, 2026