Alameda County property record for 5277 Flagg Ln, Livermore, CA 94550
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,423 sqft · built 2006 |
| Lot Size | 0.252 acres (10,992 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,281,500 (May 2006) |
| Tax Bill | $21,828 (2025) |
| Deeds & Mortgages | Jan 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 99A-2933-43 |
| Primary APN | 99A-2933-43 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 3,423 sqft Living Area |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 10,992 sqft (0.252 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 5277 FLAGG LN |
|---|---|
| City | LIVERMORE |
| State | CA |
| Zip | 94550-7379 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00040 BLK: TR: 7443 |
| Legal Subdivision | TRACT MAP 7443 |
| Legal Tract | 7443 |
| Legal Lot Number | 40 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | LIVERMORE-PLEASANTON |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 451501 |
5277 Flagg Ln is owned and occupied by an individual who acquired it in January 2020.
Source: Alameda County records, as of October 19, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 5277 FLAGG LN, LIVERMORE, CA 94550-7379 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 26, 2006 · Amount on File |
| Deed Sale | May 26, 2006 · Amount on File |
| Deed Document Number | 2006209068 |
| Last Transfer Date | Jan 28, 2020 |
| Transfer Doc | 0000022177 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jan 31, 2020 |
| Property Address | 5277 FLAGG LN, LIVERMORE, CA 94550-7379 |
| Document Number | 0000022177 |
| Instrument Date | Jan 28, 2020 |
| Instrument | 22177 |
| Transaction Type | Transfer |
| Record Updated | Mar 24, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 5277 FLAGG LN LIVERMORE CA 945507379, LIVERMORE, CA 94550-7379 |
The 2025 property tax bill for 5277 Flagg Ln was $21,828, up 2% from the year before.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Livermore City |
| Unified School District | Livermore Valley Joint Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,785,850 (+2%) Land $535,769 Building $1,250,081 | ||
| 2025 | $21,828.00 (+1.97%) | $1,750,844 Land $525,267 Building $1,225,577 | |
| 2024 | $21,407.00 (+1.36%) | ||
| 2023 | $21,119.00 | $1,682,871 Land $504,874 Building $1,177,997 | $1,798,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 5277 Flagg Ln in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 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 |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 2 in force |
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 5277 Flagg Ln is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 64% of the US · lower than 78% of California |
|---|---|
| Wildfire Likelihood | 0.03% 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 | CITY OF LIVERMORE serves 38,892 people · EPA ID CA0110011 |
|---|---|
| Water Source | Purchased surface water from ZONE 7 WATER AGENCY |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 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 243 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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