San Mateo County property record for 148 McLellan Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,720 sqft · built 1950 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $850,000 (Jul 2004) |
| Tax Bill | $15,679 (2025) |
| Deeds & Mortgages | Sep 2021 Mortgage |
| Flood Zone | Zone X (reduced by levee) |
| APN | 040-052-270 |
| Primary APN | 040-052-270 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,720 sqft Living Area |
| 1st Floor Area | 800 sqft |
| Family Room | Family Room |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 120 ft deep x 50 ft wide |
| Garage Area | 280 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 148 MCLELLAN AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2828 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | NELY 50 FT OF LOT 5 BLOCK 4 TOWN OF BERESFORD NO 1 RSM 14/4445 CITY OF SAN MATEO |
| Legal Subdivision | TOWN OF BERESFORD NO 1 |
| Legal Block | 4 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 608501 |
148 McLellan Ave is owned and occupied by two individuals who acquired it in May 2012.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 148 MCLELLAN AVE, SAN MATEO, CA 94403-2828 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 14, 2004 · Amount on File |
| Deed Sale | Jul 14, 2004 · Amount on File |
| Prior Sale | Apr 9, 2003 · Amount on File |
| Deed Document Number | 2004144880 |
| Last Transfer Date | May 12, 2012 |
| Transfer Doc | 0000069943 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 148 MCLELLAN AVE, SAN MATEO, CA 94403-2828 |
| Transaction Type | Mortgage |
| Record Updated | Aug 5, 2022 |
| Title Company | FIRST AMERICAN TITLE COMPANY RESID', FIRST AMER TTL CO RES DIV |
| Name | Verified Name |
|---|---|
| Address | 148 MCLELLAN AVE, SAN MATEO, CA 94403-2828 |
| Document Number | 0000131437 |
|---|---|
| Date | Sep 13, 2021 |
| Instrument | 2021-131437 |
| Name | MASON MCDUFFIE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | SAN RAMON, CA 94583 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Oct 1, 2041 |
The 2025 property tax bill for 148 McLellan Ave was $15,679.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City 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 | $1,208,502 (+2%) Land $604,251 Building $604,251 | ||
| 2025 | $15,679.00 | $1,184,806 Land $592,403 Building $592,403 | |
| 2023 | $15,050.00 (-0.17%) | $1,138,800 Land $569,400 Building $569,400 | $1,461,240 |
| 2022 | $15,075.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 148 McLellan Ave in Zone X, where a levee reduces flood risk, within 100 ft of a high-risk flood zone.
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 reduced by levee · depends on levee performance |
|---|---|
| Nearest Special Flood Hazard Area | Zone AO, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 50 policies |
| Nearby Flood Policies | 50 in force |
| Nearby Flood Claims | 7 (2008–2023) |
| Claims Outside the SFHA | 2 of 7 |
| Most Recent Claim | Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| 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.
The area around 148 McLellan Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | 4 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 819 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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