San Mateo County property record for 522 Helen Dr, Millbrae, CA 94030 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,290 sqft · built 1948 |
| Lot Size | 0.116 acres (5,067 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $672,500 (Aug 2002) |
| Tax Bill | $12,882 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 021-333-100 |
| Primary APN | 021-333-100 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,290 sqft Living Area |
| 1st Floor Area | 1,290 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Contemporary |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,067 sqft (0.116 acres) |
| Lot Dimensions | 92 ft deep x 55 ft wide |
| Garage Area | 410 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 522 HELEN DR |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-1620 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 11 BLOCK 17 MEADOW GLEN UNIT NO 2 RSM 29/27 CITY OF MILLBRAE |
| Legal Subdivision | MEADOW GLEN UNIT NO 2 |
| Legal Block | 17 |
| Legal Lot Number | 11 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 604500 |
Source: San Mateo County records · APN 021-333-100
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 Individual Names on File |
|---|---|
| Mailing Address | 2817 TROUSDALE DR, BURLINGAME, CA 94010-5752 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 08, 2002 · Amount on Record |
| Deed Sale | Aug 08, 2002 · Amount on Record |
| Prior Sale | Jan 05, 1999 · Amount on Record |
| Deed Document Number | 2002155201 |
| Last Transfer Date | Jun 10, 2009 |
| Transfer Doc | 0000089262 |
| 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 | $993,464 (+2%) Land $496,732 Building $496,732 | ||
| 2025 | $12,882.00 (+5.12%) | $973,986 (+4.04%) Land $486,993 Building $486,993 | |
| 2023 | $12,255.00 (+16.46%) | $936,168 Land $468,084 Building $468,084 | $1,324,350 |
| 2022 | $10,523.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816045001, 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 Claims | 2 (1985–1998) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 1998, rainfall accumulation, Severe Winter Storms And Flooding |
| Wildfire Risk | Low above 20% of the US · above 11% of California |
|---|---|
| Wildfire Likelihood | About 1 in 8,333 per year |
| Exposure | Direct burnable vegetation at the parcel |
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 586 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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