Blog > Homes With a Basement in Silicon Valley: Where They Are and What They Sell For (2026)

Homes With a Basement in Silicon Valley: Where They Are and What They Sell For (2026)

by Eric & Janelle Boyenga

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Basements are rare in Silicon Valley, where most houses sit on slabs or crawl spaces. How rare? Of the 21,737 houses sold in 31 Silicon Valley cities in the two years to October 27, 2026, 346 (2%) had listings that mention a full, finished, partial, walk-out or daylight basement. Here’s where they are and what they sold for.

The short answer

  • Most basement sales: San Jose (148), Los Gatos (22), Palo Alto (22) and Daly City (18).
  • Median price: $1.85M, 2% more per square foot than the typical house in the same city; median size 1,770 sq ft.
  • Bidding: 59% sold over asking.
  • Neighborhoods with the most: Naglee Park & University, San Jose (17), Luna Park & Northside, San Jose (16) and North Willow Glen & Gardner, San Jose (15).

Next steps

City by city

Cities with at least 3 basement sales; “share” is of all the city’s house sales.

CityBasement salesShareMedian price
San Jose1482%$1.57M
Los Gatos223%$2.77M
Palo Alto223%$4.7M
Daly City183%$1.18M
Redwood City142%$2.56M
San Mateo131%$2.4M
Santa Clara132%$1.69M
San Bruno113%$1.3M
Burlingame82%$3.27M
South San Francisco82%$1.27M
Sunnyvale81%$1.99M
San Carlos71%$2.55M
Belmont62%$2.39M
Gilroy61%$813K
Millbrae63%$2.25M
Saratoga61%$3.4M
Mountain View51%$3.08M
Menlo Park41%$3.75M
Los Altos31%$6.16M
Los Altos Hills32%$5.4M
Morgan Hill3under 1%$1.46M
Woodside32%$7.5M

Neighborhood by neighborhood

Our neighborhood guides with at least 3 basement sales, placed by map position.

NeighborhoodCitySalesMedian price
Naglee Park & UniversitySan Jose17$1.42M
Luna Park & NorthsideSan Jose16$1.15M
North Willow Glen & GardnerSan Jose15$2.75M
Old QuadSanta Clara12$1.71M
Downtown Willow GlenSan Jose10$1.91M
Rose GardenSan Jose9$2.3M
River Glen & The WillowsSan Jose8$1.87M
Horace Mann & Julian-St. JamesSan Jose6$1.14M
Washington-Guadalupe & TamienSan Jose6$928K
Downtown GilroyGilroy5$850K
Hanchett & Hester ParkSan Jose5$1.8M
Monastery GardensSanta Clara5$2.05M
Palm HavenSan Jose5$2.28M
Willow Glen WestSan Jose5$1.93M
BurbankSan Jose4$1.12M
Easton AdditionBurlingame4$3.6M
Edgewood ParkRedwood City4$4.18M
Farm Hill & CanyonRedwood City4$2.33M
Huntington Park & Lomita ParkSan Bruno4$1.05M
Old Palo AltoPalo Alto4$6.09M
San Mateo ParkSan Mateo4$4.17M
Southern Hills & BayshoreDaly City4$1.22M
Vendome & Hyde ParkSan Jose4$1.23M
Community CenterPalo Alto3$6M
Cory & Bascom GardensSan Jose3$1.7M

Before you buy a house with a basement

  • Water is the big question. Ask about sump pumps, drainage and any past water intrusion, and read the disclosures closely.
  • Is the space permitted as living area? A finished basement may or may not be counted in the official square footage; ask how the listing counted it.
  • Exits and ceiling height decide whether a basement room can be a legal bedroom.
  • Hillside houses often have a daylight or walk-out lower level, which can feel like another floor rather than a basement.

How we counted

Closed sales of houses (MLS property type “single family home”) between October 28, 2024 and October 27, 2026 in 31 cities of Santa Clara and San Mateo counties, reported to the MLS and read through the IDX feeds that power our home search, with repeat records from different feeds removed. A house counts when its listing description mentions a full, finished, partial, walk-out, daylight or unfinished basement or a basement level or room, so there are more than these counts show. Past sales aren’t a forecast or the value of any one home.

Go deeper

See what Silicon Valley buyers pay more for, the Inspection Decoder and the Disclosure Decoder, and every home-type post on Silicon Valley home types by the numbers.

Want a house with a basement?

A Property Nerd will point you to the streets where they’re most common and watch for new listings. Call (408) 373-1660 or (650) 383-8606, or book a strategy call. Commissions are negotiable, and we offer bundled services, so ask us what’s included.

Questions about this post? Ask a Property Nerd.

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