San Mateo County property record for 517 Middlesex Rd, Belmont, CA 94002
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,114 sqft · built 1953 |
| Lot Size | 0.124 acres (5,414 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $705,000 (Oct 2005) |
| Tax Bill | $17,780 (2025) |
| Deeds & Mortgages | Nov 2025 Transfer Feb 2021 Line of Credit + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 040-273-010 |
| Primary APN | 040-273-010 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,114 sqft Living Area |
| 1st Floor Area | 1,010 sqft |
| Family Room | Family Room |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Lot Area | 5,414 sqft (0.124 acres) |
| Lot Dimensions | 91 ft deep x 64 ft wide |
| View / Lot | Corner |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 517 MIDDLESEX RD |
|---|---|
| City | BELMONT |
| State | CA |
| Zip | 94002-2526 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 14 BLOCK 17 STERLING DOWNS RSM 35/25 26 27 |
| Legal Subdivision | STERLING DOWNS |
| Legal Block | 17 |
| Legal Lot Number | 14 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 608600 |
Source: San Mateo County records · APN 040-273-010
Assessment roll updated July 15, 2026 · Last verified July 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 | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Nov 06, 2025 | Intrafamily Transfer, Transfer |
| Feb 02, 2021 | Deed of Trust, Mortgage · Line of Credit SAN FRANCISCO FIRE CU |
| Nov 30, 2020 | Deed of Trust, Mortgage · Conventional Mortgage CROSSCOUNTRY MORTGAGE LLC |
| Feb 23, 2018 | Deed of Trust, Mortgage · Line of Credit SF FIRE CU |
| Oct 05, 2017 | Deed of Trust, Mortgage · Line of Credit SF FIRE CU |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 27, 2005 · Amount on Record |
| Deed Sale | Oct 27, 2005 · Amount on Record |
| Prior Sale | May 10, 2002 · Amount on Record |
| Deed Document Number | 2005188527 |
| Prior Transfer Date | Jun 04, 2001 |
| Prior Transfer Doc | 0000080896 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 06, 2025 |
| Property Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Number | 0000059453 |
| Map Reference | MB 35 PG 25-27 |
| Instrument Date | Oct 30, 2025 |
| Instrument | 2025-059453 |
| Transaction Type | Transfer |
| Record Updated | Dec 12, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Transaction Type | Mortgage |
| Record Updated | Mar 03, 2021 |
| Title Company | CHICAGO TITLE PIRT, CHICAGO TITLE PINT |
| Name | Verified Name |
|---|---|
| Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Number | 0000016949 |
|---|---|
| Date | Feb 02, 2021 |
| Instrument | 2021-016949 |
| Name | SAN FRANCISCO FIRE CU |
|---|---|
| Type | Credit Union |
| Address | SAN FRANCISCO, CA 94118 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 299 Months |
| Due | Jan 15, 2046 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Number | 0000134910 |
|---|---|
| Date | Nov 30, 2020 |
| Instrument | 2020-134910 |
| Name | CROSSCOUNTRY MORTGAGE LLC |
|---|---|
| Type | Non-Lending Institution |
| Address | BRECKSVILLE, OH 44141 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Number | 0000014832 |
| Instrument Date | Feb 23, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Mar 16, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 517 MIDDLESEX RD BELMONT CA 940022526, BELMONT, CA 94002-2526 |
| Document Number | 0000014832 |
|---|---|
| Date | Mar 01, 2018 |
| Instrument | 14832 |
| Name | SF FIRE CU |
|---|---|
| Address | SAN FRANCISCO, CA 94118 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Feb 28, 2043 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 517 MIDDLESEX RD, BELMONT, CA 94002-2526 |
| Document Number | 0000091635 |
| Instrument Date | Oct 05, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Dec 01, 2017 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 517 MIDDLESEX RD BELMONT CA 940022526, BELMONT, CA 94002-2526 |
| Document Number | 0000091635 |
|---|---|
| Date | Oct 18, 2017 |
| Instrument | 91635 |
| Name | SF FIRE CU |
|---|---|
| Address | SAN FRANCISCO, CA 94118 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Oct 17, 2042 |
| Rate Type | Adjustable Rate |
|---|
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| Municipality | Belmont City |
| County | San Mateo County |
| Elementary School District | Belmont-Redwood Shores Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,408,819 (+2%) Land $491,347 Building $917,472 | ||
| 2025 | $17,780.00 (+5.32%) Homeowner's exemption | $1,381,196 (+4.04%) Land $481,713 Building $899,483 | |
| 2024 | $16,882.00 (+1.9%) | ||
| 2023 | $16,567.00 (+3.35%) Homeowner's exemption | $1,327,565 Land $463,008 Building $864,557 | $1,989,270 |
| 2022 | $16,030.00 |
Source: FEMA National Flood Hazard Layer as of September 10, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: California Internet, Sonic Telecom.
Based on FCC filings for 642 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MID-PENINSULA WATER DISTRICT serves 31,059 people |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Feb 2025 |
| Lead | Under 1 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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