learnlos altos neighborhoodspublic parcel records, october 2026boyenga team at compass
Los Altos neighborhoods, side by side
Each of our 11 Los Altos neighborhood guides in one table: its single-family homes, their median lot (and age and size, where the records publish them), and how many sit in FEMA flood, CAL FIRE fire and state earthquake zones, counted parcel by parcel from public records.
- neighborhoods11Boyenga Team guides
- homes counted9,028single-family houses
- median lot range9,580to 17,420 sq ft
- in a liquefaction zone1351% of homes counted
side by side
Every Los Altos neighborhood, side by side
One row per neighborhood guide. Select a column heading to sort; each name opens its guide.
| Central Los Altos | 2,514houses | 10,8900.25 acre | 1956 | 2,520sq ft | 12under 1% | 0 | 472% | 0 | 0 |
| Costello Acres | 103houses | 17,4200.40 acre | 1956 | 3,226sq ft | 0 | 0 | 0 | 0 | 0 |
| Country Club | 478houses | 16,9900.39 acre | 1973 | 3,056sq ft | 51% | 0 | 4under 1% | 357% | 0 |
| Fallen Leaf Park | 80houses | 10,0200.23 acre | 1968 | 2,523sq ft | 0 | 0 | 0 | 0 | 0 |
| Loyola Corners | 459houses | 12,2000.28 acre | 1960 | 2,517sq ft | 4under 1% | 123% | 184% | 3under 1% | 0 |
| North Los Altos | 2,613houses | 10,8900.25 acre | 1958 | 2,555sq ft | 0 | 0 | 0 | 0 | 0 |
| Old Los Altos | 336houses | 9,5800.22 acre | 1955 | 2,533sq ft | 82% | 0 | 103% | 0 | 0 |
| Rancho | 119houses | 11,7600.27 acre | 1950 | 2,503sq ft | 22% | 0 | 54% | 0 | 0 |
| South Los Altos | 1,549houses | 10,0200.23 acre | 1957 | 2,375sq ft | 2under 1% | 0 | 262% | 0 | 0 |
| The Highlands | 315houses | 10,8900.25 acre | 1962 | 2,328sq ft | 0 | 5718% | 0 | 0 | 0 |
| Woodland Acres | 462houses | 11,7600.27 acre | 1962 | 2,551sq ft | 0 | 0 | 255% | 92% | 0 |
Homes = single-family houses where the records identify them, otherwise lots zoned or coded single-family (marked “lots”). Percentages are shares of the homes counted in that neighborhood. Year built and house size are medians, shown only where the records publish them for at least 80% of the homes (— otherwise).
what stands out
What stands out
- Lot sizesMedian lots run from 9,580 sq ft in Old Los Altos to 17,420 sq ft (0.40 acre) in Costello Acres.
- Year builtWhere the records publish it, the median year built runs from 1950 in Rancho to 1973 in Country Club.
- Flood zones (FEMA)6 of the 11 neighborhoods have homes in a FEMA high-risk flood zone; the highest share is in Old Los Altos (8 of 336, 2%), followed by Rancho (2%).
- Fire zones (CAL FIRE)2 of the 11 neighborhoods have homes with part of the lot in a fire hazard severity zone; the highest share is in The Highlands (57 of 315, 18%), followed by Loyola Corners (3%). None is in a Very High zone.
- Liquefaction zones7 of the 11 neighborhoods have homes in a liquefaction zone; the highest share is in Woodland Acres (25 of 462, 5%), followed by Rancho (4%).
- Landslide zones3 of the 11 neighborhoods have homes in an earthquake-induced landslide zone; the highest share is in Country Club (35 of 478, 7%), followed by Woodland Acres (2%).
- Fault zones (Alquist-Priolo)No counted home is in an Alquist-Priolo fault zone.
prices
What homes are selling for
Prices move every week, so they live on pages that read the MLS each time they load.
- Neighborhood RankingEach Los Altos neighborhood ranked by median price per square foot from the last 180 days of sales.
- Price per Sq Ft MapEvery recent Los Altos sale plotted where it happened, shaded by price per square foot.
- Los Altos Homes SoldRecent Los Altos sales with prices, sale-to-list and days on market.
the method
How we counted
- Neighborhoods
- Our Los Altos neighborhood guides, using the outline drawn for each guide (approximate; neighboring outlines can overlap). Guides with fewer than 20 counted homes are left out.
- Homes
- Single-family houses where the records identify them, otherwise lots zoned or coded single-family. Condos and townhomes are not counted. These are the same homes as on our Flood & Fire, Lot Size and Earthquake Zones pages.
- Lot size
- The median parcel lot area: the parcel record’s lot area where the source publishes one, otherwise the area of the mapped parcel outline. Approximate; confirm a parcel’s size with the county assessor or a title report.
- Flood
- FEMA high-risk flood zones (A, AE, AH or AO) at each parcel’s center, on FEMA’s flood maps as of October 2026.
- Fire
- Any part of the lot inside a CAL FIRE fire hazard severity zone (Moderate, High or Very High), counted once in its highest zone, on CAL FIRE’s current maps as of October 2026.
- Earthquake zones
- The California Geological Survey’s liquefaction, earthquake-induced landslide and Alquist-Priolo fault zones as published in October 2026, judged at each parcel’s center.
- Source for Los Altos
- City of Los Altos parcel records.
questions
Questions we hear
Which Los Altos neighborhood has the biggest lots?
Among our 11 Los Altos neighborhood guides, Costello Acres has the largest median lot, about 17,420 square feet (0.40 acre), and Old Los Altos the smallest, about 9,580 square feet. Lot sizes come from public parcel records as of October 2026.
Do any Los Altos neighborhoods have homes in a flood zone?
6 of the 11 neighborhoods have homes in a FEMA high-risk flood zone; the highest share is in Old Los Altos (8 of 336, 2%), followed by Rancho (2%). That’s judged at each parcel’s center on FEMA’s maps as of October 2026.
Are any Los Altos homes in an earthquake fault zone?
None of the 9,028 homes counted in our Los Altos guides is in an Alquist-Priolo Earthquake Fault Zone. Strong shaking can still reach any home in the region.
Where can I see home prices by neighborhood?
Our Neighborhood Ranking page ranks each Los Altos guide by median price per square foot from the last 180 days of sales, live from the MLS, and the Price per Sq Ft Map plots each sale where it happened. Recent Los Altos sales are on our Los Altos Homes Sold page.
more to learn
Keep going
- Los Altos homes and neighborhoodsHomes for sale and the full list of our Los Altos neighborhood guides.
- Lot Size by NeighborhoodThe same lot sizes next to every other city’s neighborhoods.
- Flood & Fire ZonesFlood and fire zone counts with zone-by-zone detail.
- Earthquake ZonesLiquefaction, landslide and fault zone counts for 415 neighborhoods.
- Outside Mapped Hazard ZonesThe neighborhoods where no counted home sits in a flood, fire or earthquake zone.
- One-Story HomesThe share of one-story houses in each Los Altos neighborhood where the records list stories.
- Year Built by NeighborhoodHow old the homes are in each Los Altos neighborhood where the records publish it.
- Earthquake Retrofit GrantsState grants to brace and bolt an older house on a raised foundation.
- Neighborhood RankingEach Los Altos neighborhood ranked by price per square foot, live from the MLS.
- Los Altos Homes SoldRecent Los Altos sales, live from the MLS.
- Property Nerds Data LibraryThe datasets behind these numbers (PN-DS-27 to PN-DS-29) as CSV downloads.
Counts from public parcel records and FEMA, CAL FIRE and California Geological Survey maps as published in October 2026. Neighborhood outlines are our own and approximate. Not a substitute for a property-specific report or the disclosures in a sale.
talk to a property nerd
Weighing a few Los Altos neighborhoods?
We’ll pull the parcel facts, hazard maps and recent sales for the streets you’re considering, and walk you through what they mean for price. Commissions are negotiable, and we offer bundled services, so ask us what’s included.
