This home's estimate is 11.8% higher than the average sale price ($4.30M) of 5 comparable homes.
Search- Overview
- Sale & tax history
- Property details
- Neighborhood
- Climate
331 Alamos Rd, Portola Valley, CA 94028
About this home
Redfin Estimate
Earn from this home
List your home with Redfin and save $24,018
Get cash now or lower your monthly rate
List your home for rent
Market trends in 94028, CA
Last updated October 2026
Buyer's Market
Seller's Market
Balanced market
0 days MoM
Provided by Redfin
Sale history for 331 Alamos Rd
$40/sq ft
Tax history for 331 Alamos Rd
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
- Bathroom Information
- # of Full Baths: 2
- # of 1/2 Baths: 1
- Heating & Cooling
- Air Conditioning Type: Central
- Heating Type: Central
- Fireplace Information
- Has Fireplace
- Room Information
- # of Rooms: 7
Exterior
- Exterior Information
- Construction Type: Wood/Steel
- Building Construction Quality: Good
- Roof Covering Type: Shake
- Roof Shape Type: Shake
- View Information
- View: Good
- Property Information
- Subdivision Name: WESTRIDGE SUB 2
- Living Sq. Ft: 2,860
- Gross Sq. Ft: 2,860
- Ground Floor Sq. Ft: 2,860
- Building Sq. Ft: 2,860
- # of Stories: 1
- Legal Description: NLY 2.544 ACS MOL OF LOT 27 WESTRIDGE SUB NO 2 RSM 28/37 38 39 40
- Parking & Garage Information
- # of Parking Spaces: 2
- Parking Type: Detached Garage
- Garage/Parking Sq. Ft: 520
- Garage / Carport Type: Detached
- Lot Information
- # of Buildings: 1
- Land Sq. Ft: 110,815
- Legal Lot Number: 27
- Acres: 2.544
- Zoning Code: R1002A
- County Use Description: SINGLE FAMILY
- Location Information
- Parcel Location Influence: Cul-De-Sac
- Utility Information
- Sewer Type: Septic
Financial
- Assessor Information
- Assessment Year: 2026
Public facts
- Beds: 4
- Baths: 2.5
- Sq. Ft.: 2,860
- Stories: 1.0
- Lot Size: 2.54 acres
- Style: Single Family Residential
- Year Built: 1966
- Year Renovated: —
- County: San Mateo County
- APN: 077261040
Around this home
Schools
- K - 12
- Preschool & daycare
Public K-3 • Assigned • 1.5mi
Public 4-8 • Assigned • 2.0mi
Public 9-12 • Assigned • 4.0mi
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
0.31% chance of being in a wildfire in next 30 years
5 days above 94° expected this year, 9 days in 30 years
Minimal risk of severe winds over next 30 years
12 unhealthy days expected this year, 12 days in 30 years
Sun exposure
In this area, properties receive around 10.7 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.
Nearby similar homes





New listings for sale in 94028
Home values near 331 Alamos Rd
| Address | Redfin Estimate |
|---|---|
5 Beds | 3.5 Baths | 4495 Sq. Ft. | $8,335,443 |
5 Beds | 3 Baths | 1880 Sq. Ft. | $4,201,792 |
5 Beds | 8 Baths | 11300 Sq. Ft. | $22,806,028 |
3 Beds | 2 Baths | 1900 Sq. Ft. | $6,233,570 |
2 Beds | 4.5 Baths | 6122 Sq. Ft. | $25,611,241 |
3 Beds | 5 Baths | 3790 Sq. Ft. | $7,534,998 |
5 Beds | 3 Baths | 2780 Sq. Ft. | $4,125,905 |
| Address | Redfin Estimate |
|---|---|
4 Beds | 3.5 Baths | 8333 Sq. Ft. | $15,024,215 |
3 Beds | 2.5 Baths | 3230 Sq. Ft. | $4,931,861 |
3 Beds | 3.5 Baths | 2311 Sq. Ft. | $7,571,267 |
4 Beds | 2.5 Baths | 3600 Sq. Ft. | $5,897,813 |
5 Beds | 4.5 Baths | 4200 Sq. Ft. | $6,388,111 |
4 Beds | 3.5 Baths | 3045 Sq. Ft. | $5,917,207 |
3 Beds | 2.5 Baths | 3160 Sq. Ft. | $4,560,510 |
| Address | Redfin Estimate |
|---|---|
3 Beds | 3.5 Baths | 2552 Sq. Ft. | $7,076,423 |
4 Beds | 2.5 Baths | 2290 Sq. Ft. | $5,122,738 |
1 Beds | 2 Baths | 2390 Sq. Ft. | $7,876,063 |
2 Beds | 2 Baths | 2240 Sq. Ft. | $3,784,734 |
5 Beds | 3.5 Baths | 3354 Sq. Ft. | $4,775,136 |
4 Beds | 4.5 Baths | 3140 Sq. Ft. | $4,415,397 |
4 Beds | 3 Baths | 2730 Sq. Ft. | $4,127,271 |
More real estate resources
- Cities
- Zip Codes
- Popular Searches
| Sunnyvale homes for sale | |||
| San Jose homes for sale | |||
| Fremont homes for sale |
| 94028 homes for sale | |||
| 94020 homes for sale | |||
| 94022 homes for sale | |||
| 94062 homes for sale |
Find us
Subsidiaries
Affiliated Business
Copyright: © 2026 Redfin. All rights reserved.
Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.
Do not sell or share my personal information.
REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.
California DRE #01521930
Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures
New Mexico Real Estate Licenses
TREC: Info About Brokerage Services, Consumer Protection Notice
All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.
Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.
If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.
REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.














United States
Canada