San Mateo County property record for 21 Arrowhead Ln, Menlo Park, CA 94025
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,398 sqft · built 1948 |
| Lot Size | 0.119 acres (5,161 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $240,000 (Oct 1994) |
| Tax Bill | $7,835 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 060-093-040 |
| Primary APN | 060-093-040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,398 sqft Living Area |
| 1st Floor Area | 1,398 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Duplex Single |
| Lot Area | 5,161 sqft (0.119 acres) |
| Lot Dimensions | 100 ft deep x 51 ft wide |
| View / Lot | Corner |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 21 ARROWHEAD LN |
|---|---|
| City | MENLO PARK |
| State | CA |
| Zip | 94025-1833 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 16 LESS NW 2 FT ARROWHEAD SUB RSM 27/3 |
| Legal Subdivision | ARROWHEAD SUB |
| Legal Lot Number | 16 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 610601 |
21 Arrowhead Ln, a duplex, is owned and occupied by two individuals who bought it in October 1994.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 23 ARROWHEAD LN, MENLO PARK, CA 94025-1833 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Oct 7, 1994 · Amount on File |
| Deed Sale | Oct 7, 1994 · Amount on File |
| Deed Document Number | 1994156706 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 21 Arrowhead Ln was $7,835 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Elementary School District | Redwood City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $411,162 (+2%) Land $123,340 Building $287,822 | |
| 2025 | $7,835.00 Homeowner's exemption | $403,101 Land $120,922 Building $282,179 |
| 2023 | $7,337.00 (+4.25%) Homeowner's exemption | $387,450 Land $116,227 Building $271,223 |
| 2022 | $7,038.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21 Arrowhead Ln in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 21 Arrowhead Ln 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 - BEAR GULCH private · serves 60,382 people · EPA ID CA4110006 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| Lead | 4 ppb (2022–2024) 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 487 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 | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, GeoLinks, Race Communications, Sonic Telecom.
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