The 2025 property tax bill for 7781 Ridgeline Dr was $21,362 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
Property Jurisdictions
Type
Name
State
California
County
Alameda County
Municipality
Dublin City
Unified School District
Dublin Unified School District (KG - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2026
$1,530,550 (+1.54%)Land $697,023Building $840,527
2025
$21,362.00Homeowner's exemption
$1,507,410Land $683,359Building $824,051
2023
$20,772.00Homeowner's exemption
$1,448,882Land $656,827Building $792,055
$1,773,450
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Flood
FEMA maps place 7781 Ridgeline Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1979.
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
Nearby Flood Policies
2 in force
Nearby Flood Claims
2 (1979–2023)
Most Recent Claim
Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides
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
Wildfire risk around 7781 Ridgeline Dr is very high, ranking above 92% of the US, with a 1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Very High above 92% of the US · above 75% of California
Wildfire Likelihood
1% annual chance
Exposure
Indirect within ember reach
Adjoins Burnable Land
Yes
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Drinking Water
Source: EPA Safe Drinking Water Information System, as of September 2026
Water System
DUBLIN SAN RAMON SERVICES DISTRICT serves 98,776 people · EPA ID CA0110009
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
Violations Reported to EPA
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.
Internet Providers
Source: FCC Broadband Data Collection, based on 49 locations within half a mile, as of December 31, 2025