San Mateo County property record for 313 23rd Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,480 sqft · built 1931 |
| Lot Size | 0.153 acres (6,650 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $625,000 (May 2000) |
| Tax Bill | $12,548 (2025) |
| Deeds & Mortgages | Jul 2022 Line of Credit Jul 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-142-070 |
| Primary APN | 039-142-070 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Building Area | 1,480 sqft Living Area |
| Gross Area | 2,050 sqft |
| 1st Floor Area | 1,480 sqft |
| Basement Area | 570 sqft |
| Family Room | Family Room |
| Year Built | Built 1931 |
|---|---|
| Effective Year Built | Effective 1931 |
| Lot Area | 6,650 sqft (0.153 acres) |
| Lot Dimensions | 133 ft deep x 50 ft wide |
| Garage Type | Basement |
| Garage Area | 570 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 313 23RD AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2239 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | ELY 1/2 OF LOT 7 BLOCK 6 SAN MATEO VILLA PARK RSM 12/50 51 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO VILLA PARK |
| Legal Block | 6 |
| Legal Lot Number | 7 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 607400 |
Source: San Mateo County assessment roll, 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 File |
|---|---|
| Mailing Address | 313 23RD AVE, SAN MATEO, CA 94403-2239 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jul 14, 2022 | Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK |
| Jul 14, 2022 | Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 26, 2000 · Amount on Record |
| Deed Sale | May 26, 2000 · Amount on Record |
| Deed Document Number | 200062843 |
| Last Transfer Date | Dec 2, 2011 |
| Transfer Doc | 0000150706 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 313 23RD AVE, SAN MATEO, CA 94403-2239 |
| Transaction Type | Mortgage |
| Record Updated | Aug 2, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 313 23RD AVE, SAN MATEO, CA 94403-2239 |
| Document Number | 0000054491 |
|---|---|
| Date | Jul 14, 2022 |
| Instrument | 2022-054491 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Jul 26, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 313 23RD AVE, SAN MATEO, CA 94403-2239 |
| Transaction Type | Mortgage |
| Record Updated | Aug 2, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 313 23RD AVE, SAN MATEO, CA 94403-2239 |
| Document Number | 0000054490 |
|---|---|
| Date | Jul 14, 2022 |
| Instrument | 2022-054490 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.75% |
| Type Change Date | Aug 1, 2029 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Index | Other |
| Max Rate | 10.9% |
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 | $979,800 (+2%) Land $489,900 Building $489,900 | ||
| 2025 | $12,548.00 (+1.07%) Homeowner's exemption | $960,590 (+4.04%) Land $480,295 Building $480,295 | |
| 2023 | $12,415.00 (+4.58%) Homeowner's exemption | $923,292 Land $461,646 Building $461,646 | $1,802,880 |
| 2022 | $11,871.00 |
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 | 1 in force |
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 | Not rated no burnable land within ember reach |
|---|
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 799 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Cable | 1,500 / 50 |
May also be available: California Internet, Etheric Communications, LLC., T-Mobile USA, Verizon.
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