San Mateo County property record for 423 Wave Ave, Half Moon Bay, CA 94019
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,850 sqft · built 1972 |
| Lot Size | 0.176 acres (7,650 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $320,000 (Aug 1996) |
| Tax Bill | $7,586 (2025) |
| Deeds & Mortgages | Oct 2021 Mortgage Oct 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 048-211-310 |
| Primary APN | 048-211-310 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,850 sqft Living Area |
| 1st Floor Area | 1,650 sqft |
| 2nd Floor Area | 1,200 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Lot Area | 7,650 sqft (0.176 acres) |
| Lot Dimensions | 127 ft deep x 60 ft wide |
| Garage Area | 370 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 423 WAVE AVE |
|---|---|
| City | HALF MOON BAY |
| State | CA |
| Zip | 94019-1428 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10008 |
| Legal Description | LOTS 25A & 25B BLK 5 EL MAR BEACH RSM D/59 |
| Legal Subdivision | EL MAR BEACH |
| Legal Block | 5 |
| Legal Lot Number | 25A |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | HALF MOON BAY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 613501 |
423 Wave Ave is owner-occupied and held in a trust since August 1996.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 423 WAVE AVE, HALF MOON BAY, CA 94019-1428 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 4, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage HOME POINT FINANCIAL CORPORATION |
| Oct 4, 2021 | Intrafamily Transfer, Transfer LAWYERS TITLE COMPANY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 2, 1996 · Amount on File |
| Deed Sale | Aug 2, 1996 · Amount on File |
| Deed Document Number | 199694836 |
| Prior Transfer Date | Jul 29, 1996 |
| Prior Transfer Doc | 0000094835 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 4, 2021 |
| Property Address | 423 WAVE AVE, HALF MOON BAY, CA 94019-1428 |
| Document Number | 0000140757 |
| Map Reference | MB D PG 59 |
| Instrument Date | Sep 27, 2021 |
| Instrument | 2021-140757 |
| Transaction Type | Transfer |
| Record Updated | Oct 27, 2021 |
| Title Company | LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 423 WAVE AVE, HALF MOON BAY, CA 94019-1428 |
| Document Number | 0000140758 |
|---|---|
| Date | Oct 4, 2021 |
| Instrument | 2021-140758 |
| Name | HOME POINT FINANCIAL CORPORATION |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 1, 2051 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 4, 2021 |
| Property Address | 423 WAVE AVE, HALF MOON BAY, CA 94019-1428 |
| Document Number | 0000140759 |
| Map Reference | MB D PG 569 |
| Instrument Date | Sep 27, 2021 |
| Instrument | 2021-140759 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | LAWYERS TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 423 WAVE AVE, HALF MOON BAY, CA 94019-1428 |
The 2025 property tax bill for 423 Wave Ave was $7,586 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Half Moon Bay City |
| Unified School District | Cabrillo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $531,574 (+2%) Land $265,787 Building $265,787 | ||
| 2025 | $7,586.00 Homeowner's exemption | $521,152 Land $260,576 Building $260,576 | |
| 2023 | $6,813.00 (+3.16%) Homeowner's exemption | $500,916 Land $250,458 Building $250,458 | $1,577,250 |
| 2022 | $6,604.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 423 Wave Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 |
| Flood Insurance Cost | Premium on File median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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.
Wildfire risk around 423 Wave Ave is low, with a 0.02% annual chance of wildfire.
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 | 0.02% 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 | COASTSIDE COUNTY WATER DISTRICT serves 19,033 people · EPA ID CA4110011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2023 |
| Lead | 2 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 51 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
May also be available: Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures