San Mateo County property record for 393 Ashton Ave, Millbrae, CA 94030 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,757 sqft · built 1939 |
| Lot Size | 0.152 acres (6,600 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $550,000 (Nov 1999) |
| Tax Bill | $15,615 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 024-095-030 |
| Primary APN | 024-095-030 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,757 sqft Living Area |
| Gross Area | 3,317 sqft |
| 1st Floor Area | 1,570 sqft |
| Basement Area | 560 sqft |
| Family Room | Family Room |
| Year Built | Built 1939 |
|---|---|
| Effective Year Built | Effective 1939 |
| Lot Area | 6,600 sqft (0.152 acres) |
| Lot Dimensions | 110 ft deep x 60 ft wide |
| Garage Type | Basement |
| Garage Area | 560 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 393 ASHTON AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2363 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 14 BLOCK 40 MILLBRAE HIGHLANDS NO 4 |
| Legal Subdivision | MILLBRAE HIGHLANDS NO 4 |
| Legal Block | 40 |
| Legal Lot Number | 14 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 604800 |
Source: San Mateo County records · APN 024-095-030
Assessment roll updated July 15, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 393 ASHTON AVE, MILLBRAE, CA 94030-2363 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 30, 1999 · Amount on Record |
| Deed Sale | Nov 30, 1999 · Amount on Record |
| Deed Document Number | 1999195906 |
| Last Transfer Date | Jun 09, 2000 |
| Transfer Doc | 0000079964 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Millbrae City |
| Elementary School District | Millbrae Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,156,248 (+2%) Land $431,112 Building $725,136 | ||
| 2025 | $15,615.00 (+7.93%) | $1,133,577 (+4.04%) Land $422,659 Building $710,918 | |
| 2023 | $14,468.00 (+18.65%) | $1,089,562 Land $406,248 Building $683,314 | $1,616,220 |
| 2022 | $12,194.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816048002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 4 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 802 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Sail Internet Holdings, Verizon, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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