San Mateo County property record for 251 Aviador Ave, Millbrae, CA 94030
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 920 sqft · built 1944 |
| Lot Size | 0.119 acres (5,185 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,475,000 (Aug 2026) |
| Tax Bill | $4,071 (2025) |
| Deeds & Mortgages | Aug 2026 Transfer Aug 2026 Transfer + 3 more |
| Flood Zone | Zone AE (high risk) |
| APN | 024-174-160 |
| Primary APN | 024-174-160 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 920 sqft Living Area |
| 1st Floor Area | 920 sqft |
| Family Room | Family Room |
| Year Built | Built 1944 |
|---|---|
| Effective Year Built | Effective 1944 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,185 sqft (0.119 acres) |
| Lot Dimensions | 100 ft deep x 52 ft wide |
| Garage Area | 200 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 251 AVIADOR AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2703 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 49 BLOCK 1 BAYSIDE MANOR NO 1 |
| Legal Subdivision | BAYSIDE MANOR NO 1 |
| Legal Block | 1 |
| Legal Lot Number | 49 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2023 |
| Census Tract | 604400 |
Source: San Mateo County records, as of September 22, 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 Record |
|---|---|
| Mailing Address | 1637 ASCENSION DR, SAN MATEO, CA 94402-3614 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Aug 21, 2026 | Affidavit of Death of Trustee, Transfer |
| Aug 21, 2026 | Affidavit of Death of Trustee, Transfer |
| Aug 21, 2026 | Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPAN |
| Jul 20, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Jul 20, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 21, 2026 · Amount on Record |
| Deed Sale | Aug 21, 2026 · Amount on Record |
| Deed Document Number | 202647781 |
| Prior Transfer Date | Aug 14, 2026 |
| Prior Transfer Doc | 0000047779 |
| Record Updated | Oct 29, 2026 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 21, 2026 |
| Property Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Number | 0000047780 |
| Instrument Date | Aug 14, 2026 |
| Instrument | 202647780 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 1637 ASCENSION DR, SAN MATEO, CA 94402-3614 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 21, 2026 |
| Property Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Number | 0000047779 |
| Instrument Date | Aug 14, 2026 |
| Instrument | 202647779 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 1637 ASCENSION DR, SAN MATEO, CA 94402-3614 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 21, 2026 |
| Property Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Number | 0000047781 |
| Instrument Date | Aug 4, 2026 |
| Instrument | 202647781 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2026 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPAN |
| Amount | Amount Recorded |
|---|---|
| Tax | $163,872.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 20, 2017 |
| Property Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Number | 0000062193 |
| Instrument Date | Jun 28, 2017 |
| Instrument | 62193 |
| Transaction Type | Transfer |
| Record Updated | Aug 28, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 1637 ASCENSION DR SAN MATEO CA 944023614, SAN MATEO, CA 94402-3614 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 20, 2017 |
| Property Address | 251 AVIADOR AVE, MILLBRAE, CA 94030-2703 |
| Document Number | 0000062194 |
| Instrument Date | Jun 28, 2017 |
| Instrument | 62194 |
| Transaction Type | Transfer |
| Record Updated | Aug 10, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 1637 ASCENSION DR SAN MATEO CA 944023614, SAN MATEO, CA 94402-3614 |
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 | $227,862 (+2%) Land $103,573 Building $124,289 | ||
| 2025 | $4,071.00 (+2.29%) | $223,395 (+4.04%) Land $101,543 Building $121,852 | |
| 2023 | $3,980.00 (+49.62%) | $214,721 Land $97,600 Building $117,121 | $1,009,350 |
| 2022 | $2,660.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 83 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 83 in force |
| Nearby Flood Claims | 10 (1982–1983) |
| Claims Outside the SFHA | 7 of 10 |
| Most Recent Claim | Jan 1983 · tidal / storm surge |
| Claims by Event |
|
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% 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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