21 HEATHER LN WALNUT CREEK CA 945973204, WALNUT CREEK, CA 94597-3204
Mortgage
Document Number
0000168540
Date
Sep 15, 2017
Instrument
168540
Lender
Name
HOMESTREET BK
Type
Bank
Address
SEATTLE, WA 98101-2326
Agreement
Type
Line of Credit
Amount
Amount on Record
Term
300 Months
Due
Sep 14, 2042
Interest
Rate Type
Adjustable Rate
Tax Assessment & Valuation
The 2025 property tax bill for 21 Heather Ln was $15,939.
Source: Contra Costa County assessment roll, as of July 14, 2026
Property Jurisdictions
Type
Name
State
California
County
Contra Costa County
Municipality
Walnut Creek City
Secondary School District
Acalanes Union High School District (09 - 12)
Elementary School District
Walnut Creek Elementary School District (KG - 08)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
2026
$1,374,263 (+2%)Land $1,146,104Building $228,159
2025
$15,939.00
$1,347,318Land $1,123,632Building $223,686
2023
$15,352.00 (+57.88%)
$1,295,000Land $1,080,000Building $215,000
2022
$9,724.00
Assessed value is set for property tax purposes and is not a market price estimate.
Flood
FEMA maps place 21 Heather Ln in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone X minimal risk
Nearest Special Flood Hazard Area
Zone A, within 500 ft
Flood Insurance Requirement
Not required lenders may require it
Nearby Flood Claims
2 (1998–2004)
Claims Outside the SFHA
2 of 2
Most Recent Claim
Feb 2004 · rainfall accumulation
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 21 Heather Ln is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood
0.01% annual chance
Exposure
None beyond ember reach
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
EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source
Surface water
Last State Inspection
Dec 2021
Lead
Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Internet Providers
Source: FCC Broadband Data Collection, based on 535 locations within half a mile, as of December 31, 2025
Provider
Max Down / Up (Mbps)
Xfinity Cable
2,000 / 250
Astound Broadband Cable · Fiber in parts of the area