Distribution of Lot Sizes in San Mateo

Raziel Ungar

Raziel Ungar

July 20th, 2026 - 8 min read

I get the same question from buyers over and over. How big are the lots in this neighborhood? Is it rare to find something oversized? Where should I even be looking?

For years my answer was to run an MLS search on request. That works, but it's slow, and it only answers the one question you asked. So I pulled the full picture instead. Lot size distribution across 15 San Mateo neighborhoods: Aragon, Baywood Knolls, Baywood Park, Baywood Parrot Park, Beresford Manor, Foothill Terrace, Highlands, Hillsdale, Homestead Husing, Laurel, San Mateo Knolls, San Mateo Park, San Mateo Terrace, San Mateo Woods, and Westwood Knolls.

Here's what jumped out. If you want a lot over 8,000 square feet, Aragon is not the place to look. Only 9 of its 442 homes clear that mark. That's 2%. Homestead Husing is nearly as tight, 7 out of 355. So if you're in Aragon and you've got a big lot, you're sitting on something genuinely uncommon.

Flip it around and San Mateo Park, Highlands, and Baywood Park are where the bigger lots actually live, 497, 475, and 357 homes over 8,000 square feet respectively. If space is the priority, that's where I'd start looking.

Below is the data for how many homes are in each San Mateo neighborhood based on lot size. There are 15 neighborhoods in San Mateo: Aragon, Baywood Knolls, Baywood Park, Baywood Parrot Park, Beresford Manor, Foothill Terrace, Highlands, Hillsdale, Homestead Husing, Laurel, San Mateo Knolls, San Mateo Park, San Mateo Terrace, San Mateo Woods, and Westwood Knolls.

San Mateo · Residential Lots

Lot sizes across all 15 neighborhoods

Every single-family parcel in these San Mateo neighborhoods, grouped by size. 8,457 homes in all.

Every neighborhood and lot-size band at once. Cells are lightly shaded to show where each neighborhood concentrates.

Number of single-family homes by neighborhood and lot size in square feet
Neighborhood Under 5,000 5,000–5,999 6,000 6,001–8,000 Over 8,000 Total

Heatmap of lot-size distribution by neighborhood
Tap any neighborhood for a plain-English breakdown.
  • Under 5,000
  • 5,000–5,999
  • 6,000
  • 6,001–8,000
  • Over 8,000

Source: San Mateo County Assessor active-parcel records, geocoded to parcel by APN and compiled for Burlingame Properties, 2026.


Below is every home in San Mateo plotted on a map:

Distribution of Lot Sizes in San Mateo

Number of lots under 5,000 square feet: 540 [light blue pushpin]
Number of lots 5,000 s/f to 5,999 s/f: 2,368 [light green pushpin]
Number of lots that are 6,000 s/f: 164 [red pushpin]
Number of lots that are 6,001 s/f to 8,000 s/f: 2,406 [dark blue pushpin]
Number of lots over 8,000 s/f: 2,979 [dark green pushpin]

Total: 8,457 lots across all 15 neighborhoods.



This article is copyrighted by Raziel Ungar and may not be reproduced or copied without express written permission.

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