San Mateo County property record for 300 Chadbourne Ave, Millbrae, CA 94030 · Last verified July 2026
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 2,740 sqft · built 1948 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $437,500 (Sep 1997) |
| Tax Bill | $11,439 (2025) |
| Deeds & Mortgages | Nov 2020 Transfer Nov 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 024-281-070 |
| Primary APN | 024-281-070 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,740 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Duplex Single |
| Roof Material | Tar & Gravel |
| Lot Area | 4,800 sqft (0.11 acres) |
| Lot Dimensions | 120 ft deep x 40 ft wide |
| View / Lot | Corner |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 300 CHADBOURNE AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2515 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT 14 BLOCK 16 MILLBRAE VILLA TRACT |
| Legal Subdivision | MILLBRAE VILLA TRACT |
| Legal Block | 16 |
| Legal Lot Number | 14 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 604800 |
Source: San Mateo County records · APN 024-281-070
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 | 300 CHADBOURNE AVE, MILLBRAE, CA 94030-2515 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Nov 30, 2020 | Quit Claim Deed, Transfer UNISOURCE |
| Nov 30, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage NETWORK CAPITAL FUNDING CORP |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Sep 19, 1997 · Amount on Record |
| Deed Sale | Sep 19, 1997 · Amount on Record |
| Deed Document Number | 1997120469 |
| Last Transfer Date | Nov 09, 2020 |
| Transfer Doc | 0000135114 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 30, 2020 |
| Property Address | 300 CHADBOURNE AVE, MILLBRAE, CA 94030-2515 |
| Document Number | 0000135116 |
| Instrument Date | Nov 16, 2020 |
| Instrument | 135116 |
| Transaction Type | Transfer |
| Record Updated | Jan 05, 2021 |
| Title Company | UNISOURCE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 300 CHADBOURNE AVE MILLBRAE CA 940302515, MILLBRAE, CA 94030-2515 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 30, 2020 |
| Property Address | 300 CHADBOURNE AVE, MILLBRAE, CA 94030-2515 |
| Document Number | 0000135114 |
| Map Reference | MB B PG 36 |
| Instrument Date | Nov 09, 2020 |
| Instrument | 2020-135114 |
| Transaction Type | Transfer |
| Record Updated | Aug 05, 2022 |
| Title Company | UNISOURCE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 300 CHADBOURNE AVE, MILLBRAE, CA 94030-2515 |
| Document Number | 0000135115 |
|---|---|
| Date | Nov 30, 2020 |
| Instrument | 2020-135115 |
| Name | NETWORK CAPITAL FUNDING CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2050 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Millbrae City |
| Elementary School District | Millbrae Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $743,888 (+2%) Land $223,931 Building $519,957 | |
| 2025 | $11,439.00 (+5.88%) Homeowner's exemption | $729,304 (+4.04%) Land $219,541 Building $509,763 |
| 2023 | $10,804.00 (+33.55%) Homeowner's exemption | $700,987 Land $211,017 Building $489,970 |
| 2022 | $8,090.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 400 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Sail Internet Holdings, Verizon, AT&T, California Internet, Radiate Holdings, Xfinity, Race Telecommunications. Availability varies by address; speeds are provider-advertised maximums, not measured.
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