27 Alder Ave, Walnut Creek, CA 94595 Property Records

Contra Costa County property record for 27 Alder Ave, Walnut Creek, CA 94595

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,257 sqft · built 1949
Lot Size	0.326 acres (14,200 sqft)
Owner	Company Name on File
Last Sale	$610,000 (Apr 2003)
Tax Bill	$14,593 (2025)
Deeds & Mortgages	Mar 2026 Line of Credit
Flood Zone	Zone X (moderate risk)
APN	`184-312-004-7`

Property Details

APN / Parcel Number

Primary APN	`184-312-004-7`
Alternative APN	`184-312-004`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	3,257 sqft Living Area
1st Floor Area	2,010 sqft
2nd Floor Area	1,247 sqft

Exterior

Year Built	Built 1949
Effective Year Built	Effective 2005
Lot Area	14,200 sqft (0.326 acres)
Garage Area	200 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	27 ALDER AVE
City	WALNUT CREEK
State	CA
Zip	94595-1601
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	DEWING PARK POR LOT 59
Legal Subdivision	DEWING PARK
Legal Lot Number	59
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	5
Census Block	5003
Census Tract	334200

Owner

Source: Contra Costa County records · APN 184-312-004-7

Assessment roll updated July 14, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	27 ALDER AVE, WALNUT CREEK, CA 94595-1601
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Apr 16, 2003 · Amount on Record
Deed Sale	Apr 16, 2003 · Amount on Record
Prior Sale	Oct 17, 2001 · Amount on Record
Deed Document Number	2003173168
Last Transfer Date	Jul 01, 2024
Transfer Doc	0000062909
Record Updated	Sep 20, 2026

March 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	27 ALDER AVE, WALNUT CREEK, CA 94595-1601
Transaction Type	Mortgage
Record Updated	Mar 19, 2026
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	27 ALDER AVE, WALNUT CREEK, CA 94595-1601

Mortgage

Document Number	0000023309
Date	Mar 10, 2026
Instrument	2026- 023309

Lender

Name	FREMONT BANK
Type	Bank
Address	2580 SHEA CENTER DR, LIVERMORE, CA 94551

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Change Frequency	Monthly

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Secondary School District	Acalanes Union High School District (09 - 12)
Elementary School District	Walnut Creek Elementary School District (KG - 08)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

Year	Tax Bill	Assessed Value
2026		$1,256,273 (+2%) Land $508,771 Building $747,502
2025	$14,593.00 (+3.86%) Homeowner's exemption	$1,231,642 (+4.04%) Land $498,796 Building $732,846
2023	$14,050.00 (+2.26%) Homeowner's exemption	$1,183,818 Land $479,428 Building $704,390
2022	$13,739.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	1 in force
Nearby Flood Claims	2 (1997–2017)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Aug 2017 · other causes

Wildfire

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 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.

Internet Providers

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
Radiate Holdings Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Verizon.

Based on FCC filings for 396 locations within half a mile of this property.

Drinking Water

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	EAST BAY MUD serves 1,468,000 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.