San Mateo County property record for 240 Chadbourne Ave, Millbrae, CA 94030
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2.5 ba · 2,360 sqft · built 1929 |
| Lot Size | 0.124 acres (5,400 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $950,000 (Jun 2007) |
| Tax Bill | $17,180 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 024-283-090 |
| Primary APN | 024-283-090 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,360 sqft Living Area |
| Gross Area | 2,620 sqft |
| 1st Floor Area | 1,380 sqft |
| Basement Area | 1,240 sqft |
| Finished Basement | 980 sqft |
| Unfinished Basement | 260 sqft |
| Family Room | Family Room |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1929 |
| Lot Area | 5,400 sqft (0.124 acres) |
| Lot Dimensions | 90 ft deep x 60 ft wide |
| Garage Type | Basement |
| Garage Area | 940 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 240 CHADBOURNE AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2513 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20000 |
| Legal Description | ELY 60 FT OF LOTS 1 & 2 BLOCK 14 MILLBRAE VILLA TRACT |
| Legal Subdivision | MILLBRAE VILLA TRACT |
| Legal Block | 14 |
| Legal Lot Number | 1,2 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 604800 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | PO BOX 1606, BURLINGAME, CA 94011-1606 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 29, 2007 · Amount on Record |
| Deed Sale | Jun 29, 2007 · Amount on Record |
| Deed Document Number | 200798805 |
| Prior Transfer Date | Jun 28, 2006 |
| Prior Transfer Doc | 0000123697 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County assessment roll, as of July 15, 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) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,388,794 (+2%) Land $649,119 Building $739,675 | ||
| 2025 | $17,180.00 (+5.95%) | $1,361,565 (+4.04%) Land $636,392 Building $725,173 | |
| 2023 | $16,215.00 (+11.19%) | $1,308,697 Land $611,681 Building $697,016 | $2,071,980 |
| 2022 | $14,583.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF MILLBRAE serves 22,795 people · EPA ID CA4110018 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Apr 2025 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 400 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, GeoLinks, Race Communications, Sail Internet, Verizon.
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