San Mateo County property record for 23 Prague St, San Mateo, CA 94401
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,510 sqft · built 1947 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,452,000 (Mar 2024) |
| Tax Bill | $18,400 (2025) |
| Deeds & Mortgages | Mar 2024 Sale & Mortgage Aug 2023 Mortgage + 3 more |
| Flood Zone | Zone X (reduced by levee) |
| APN | 033-181-170 |
| Primary APN | 033-181-170 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,510 sqft Living Area |
| 1st Floor Area | 1,140 sqft |
| Family Room | Family Room |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Area | 290 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 23 PRAGUE ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-1310 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 17 BLOCK 5 SHORE VIEW TRACT MAP NO 5 RSM 25/41 42 CITY OF SAN MATEO |
| Legal Subdivision | SHORE VIEW TRACT MAP NO 5 |
| Legal Block | 5 |
| Legal Lot Number | 17 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 606100 |
23 Prague St is owned and occupied by two individuals who acquired it in December 2024.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| 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.
| Date | Document |
|---|---|
| Mar 19, 2024 | Grant Deed, Transfer · Conventional Mortgage CITIBANK NA |
| Aug 18, 2023 | Deed of Trust, Mortgage · Commercial Mortgage DOUGLAS G SYKES ETAL |
| May 6, 2020 | Deed of Trust, Mortgage · Conventional Mortgage OWNING CORP |
| Aug 19, 2019 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Sep 1, 2017 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 19, 2024 · Amount on File |
| Deed Sale | Mar 19, 2024 · Amount on File |
| Deed Document Number | 202414400 |
| Last Transfer Date | Dec 7, 2024 |
| Transfer Doc | 0000003032 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Mar 19, 2024 |
| Property Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000014400 |
| Map Reference | MB 25 PG 41&42 |
| Instrument Date | Mar 12, 2024 |
| Instrument | 2024-014400 |
| Transaction Type | Transfer |
| Record Updated | Apr 9, 2024 |
| Title Company | ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TTL CO OF NOCAL |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $8,857.20 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000014401 |
|---|---|
| Date | Mar 19, 2024 |
| Instrument | 2024-014401 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2054 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Transaction Type | Mortgage |
| Record Updated | Sep 27, 2023 |
| Title Company | ORABGE COAST TITLE, ORANGE COAST TITLE |
| Name | Verified Name |
|---|---|
| Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000039961 |
|---|---|
| Date | Aug 18, 2023 |
| Instrument | 2023-039961 |
| Name | DOUGLAS G SYKES ETAL |
|---|---|
| Type | Private Party |
| Address | 275 ALVARADO RD, BERKELEY, CA 94705 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000044738 |
| Instrument Date | May 6, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 10, 2020 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 23 PRAGUE ST SAN MATEO CA 944011310, SAN MATEO, CA 94401-1310 |
| Document Number | 0000044738 |
|---|---|
| Date | May 18, 2020 |
| Instrument | 44738 |
| Name | OWNING CORP |
|---|---|
| Address | ORANGE, CA 92868 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 17, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000068342 |
| Instrument Date | Aug 19, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Sep 19, 2019 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 23 PRAGUE ST SAN MATEO CA 944011310, SAN MATEO, CA 94401-1310 |
| Document Number | 0000068342 |
|---|---|
| Date | Aug 26, 2019 |
| Instrument | 68342 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 25, 2049 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 23 PRAGUE ST, SAN MATEO, CA 94401-1310 |
| Document Number | 0000080124 |
| Instrument Date | Sep 1, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Oct 12, 2017 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 23 PRAGUE ST SAN MATEO CA 944011310, SAN MATEO, CA 94401-1310 |
| Document Number | 0000080124 |
|---|---|
| Date | Sep 13, 2017 |
| Instrument | 80124 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 12, 2047 |
The 2025 property tax bill for 23 Prague St was $18,400 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 | 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 | $1,510,660 (+2%) Land $604,472 Building $906,188 | ||
| 2025 | $18,400.00 Homeowner's exemption | $1,481,040 Land $592,620 Building $888,420 | |
| 2023 | $13,366.00 (-0.33%) Homeowner's exemption | $991,426 Land $495,713 Building $495,713 | $1,206,450 |
| 2022 | $13,410.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 23 Prague St in Zone X, where a levee reduces flood risk, though there have been 3 flood claims nearby since 1979.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 3 (1979–2014) |
| Most Recent Claim | Dec 2014 · rainfall accumulation |
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 23 Prague St 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 220 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 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
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