San Mateo County property record for 4 Heidi Ln, Millbrae, CA 94030
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 3,370 sqft · built 1978 |
| Lot Size | 0.291 acres (12,659 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $8,674 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 024-191-100 |
| Primary APN | 024-191-100 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Building Area | 3,370 sqft Living Area |
| 1st Floor Area | 1,460 sqft |
| 2nd Floor Area | 1,330 sqft |
| Basement Area | 580 sqft |
| Finished Basement | 580 sqft |
| Family Room | Family Room |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1978 |
| Lot Area | 12,659 sqft (0.291 acres) |
| Lot Dimensions | 185 ft deep x 69 ft wide |
| Garage Area | 550 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 4 HEIDI LN |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2901 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | PARCEL 4 PARCEL MAP VOL 22/25 |
| Legal Subdivision | PARCEL MAP PETRINI PARK |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 604700 |
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 Company Names on Record |
|---|---|
| Mailing Address | 4 HEIDI LN, MILLBRAE, CA 94030-2901 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| 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 | $597,404 (+2%) Land $298,702 Building $298,702 | ||
| 2025 | $8,674.00 (+6.08%) Homeowner's exemption | $585,692 (+4.04%) Land $292,846 Building $292,846 | |
| 2023 | $8,177.00 (+26.89%) Homeowner's exemption | $562,950 Land $281,475 Building $281,475 | $2,492,460 |
| 2022 | $6,444.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jan 1982 · Severe Storms, Flood, Mudslides & High Tide |
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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 554 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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