San Mateo County property record for 521 Ruby St, Redwood City, CA 94062
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,270 sqft · built 1969 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,290,000 (Oct 2015) |
| Tax Bill | $18,006 (2025) |
| Deeds & Mortgages | Oct 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 058-144-410 |
| Primary APN | 058-144-410 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,270 sqft Living Area |
| 1st Floor Area | 1,270 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 4,800 sqft (0.11 acres) |
| Lot Dimensions | 120 ft deep x 40 ft wide |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 521 RUBY ST |
|---|---|
| City | REDWOOD CITY |
| State | CA |
| Zip | 94062-2231 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | SELY 40 FT OF LOT 5 BLK 8 NEW HIGH SCHOOL ACRES RSM 11/36 38 |
| Legal Subdivision | NEW HIGH SCHOOL ACRES |
| Legal Block | 8 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 609800 |
Source: San Mateo County records · APN 058-144-410
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 | Individual Name on File |
|---|---|
| Mailing Address | 521 RUBY ST, REDWOOD CITY, CA 94062-2231 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Oct 30, 2015 · Amount on Record |
| Deed Sale | Oct 30, 2015 · Amount on Record |
| Prior Sale | Jul 23, 2013 · Amount on Record |
| Deed Document Number | 2015114907 |
| Prior Transfer Date | Oct 19, 2012 |
| Prior Transfer Doc | 0000165165 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 521 RUBY ST, REDWOOD CITY, CA 94062-2231 |
| Document Number | 0000089545 |
| Instrument Date | Oct 16, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Dec 07, 2018 |
| Title Company | AMERICAN TITLE COMPANY, AMERICAN TITLE INC |
| Name | Verified Name |
|---|---|
| Address | 521 RUBY ST REDWOOD CITY CA 940622231, REDWOOD CITY, CA 94062-2231 |
| Document Number | 0000089545 |
|---|---|
| Date | Nov 19, 2018 |
| Instrument | 89545 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Redwood City |
| Elementary School District | Redwood City 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 | $1,557,634 (+2%) Land $778,817 Building $778,817 | ||
| 2025 | $18,006.00 (+3.58%) Homeowner's exemption | $1,527,094 (+4.04%) Land $763,547 Building $763,547 | |
| 2023 | $17,383.00 (+4.63%) Homeowner's exemption | $1,467,798 Land $733,899 Building $733,899 | $1,744,470 |
| 2022 | $16,614.00 |
Source: FEMA National Flood Hazard Layer as of September 10, 2026 · FEMA NFIP claims and policies as of September 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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1996) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 1996 · rainfall accumulation |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
May also be available: California Internet, Radiate Holdings, Sonic Telecom, T-Mobile USA.
Based on FCC filings for 787 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 | CITY OF REDWOOD CITY serves 90,043 people |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2024 |
| 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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