learnatherton neighborhoodspublic parcel records, october 2026boyenga team at compass
Atherton neighborhoods, side by side
Each of our 6 Atherton neighborhood guides in one table: its single-family homes, their median lot, and how many sit in FEMA flood, CAL FIRE fire and state earthquake zones, counted parcel by parcel from public records.
- neighborhoods6Boyenga Team guides
- homes counted2,502single-family lots
- median lot range22,100to 46,600 sq ft
- in a liquefaction zone1145% of homes counted
side by side
Every Atherton neighborhood, side by side
One row per neighborhood guide. Select a column heading to sort; each name opens its guide.
| Holbrook-Palmer Park & Town Center | 196lots | 28,2300.65 acre | 0 | 0 | 0 | 0 | 0 |
| Lindenwood | 495lots | 40,1200.92 acre | 0 | 0 | 112% | 0 | 0 |
| Lloyden Park | 300lots | 22,1000.51 acre | 0 | 0 | 0 | 0 | 0 |
| Selby Lane | 694lots | 43,3601.00 acre | 0 | 0 | 538% | 0 | 0 |
| West Atherton | 489lots | 43,8101.0 acres | 0 | 0 | 122% | 0 | 0 |
| West of the Alameda | 328lots | 46,6001.1 acres | 0 | 2under 1% | 3812% | 3under 1% | 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. The records here don’t publish year built or house size widely enough to show.
what stands out
What stands out
- Lot sizesMedian lots run from 22,100 sq ft in Lloyden Park to 46,600 sq ft (1.1 acres) in West of the Alameda.
- Flood zones (FEMA)None of the 6 neighborhoods has a home in a FEMA high-risk flood zone.
- Fire zones (CAL FIRE)Only West of the Alameda has homes with part of the lot in a fire hazard severity zone: 2 of 328 (under 1%). None is in a Very High zone.
- Liquefaction zones4 of the 6 neighborhoods have homes in a liquefaction zone; the highest share is in West of the Alameda (38 of 328, 12%), followed by Selby Lane (8%).
- Landslide zonesOnly West of the Alameda has homes in an earthquake-induced landslide zone: 3 of 328 (under 1%).
- 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 Atherton neighborhood ranked by median price per square foot from the last 180 days of sales.
- Price per Sq Ft MapEvery recent Atherton sale plotted where it happened, shaded by price per square foot.
the method
How we counted
- Neighborhoods
- Our Atherton 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 Atherton
- San Mateo County parcel layer (use codes as of June 2020).
questions
Questions we hear
Which Atherton neighborhood has the biggest lots?
Among our 6 Atherton neighborhood guides, West of the Alameda has the largest median lot, about 46,600 square feet (1.1 acres), and Lloyden Park the smallest, about 22,100 square feet. Lot sizes come from public parcel records as of October 2026.
Do any Atherton neighborhoods have homes in a flood zone?
None of our Atherton guides has a home in a FEMA high-risk flood zone at the parcel’s center, on FEMA’s maps as of October 2026.
Are any Atherton homes in an earthquake fault zone?
None of the 2,502 homes counted in our Atherton 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 Atherton 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.
more to learn
Keep going
- Atherton homes and neighborhoodsHomes for sale and the full list of our Atherton 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.
- Earthquake Retrofit GrantsState grants to brace and bolt an older house on a raised foundation.
- Neighborhood RankingEach Atherton neighborhood ranked by price per square foot, 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 (San Mateo County use codes as of June 2020). 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 Atherton 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.
