31 Diablo Cir, Lafayette, CA 94549 Property Records

Contra Costa County property record for 31 Diablo Cir, Lafayette, CA 94549

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,501 sqft · built 1949
Lot Size	0.379 acres (16,500 sqft)
Owner	2 Company Names on Record
Last Sale	$1,603,000 (Mar 2007)
Tax Bill	$26,536 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Aug 2021 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`251-083-007-4`

Property Details

APN / Parcel Number

Primary APN	`251-083-007-4`
Alternative APN	`251-083-007`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	13 Rooms
Stories	1 Story
Building Area	3,501 sqft Living Area
1st Floor Area	2,251 sqft
Basement Area	1,250 sqft

Exterior

Year Built	Built 1949
Effective Year Built	Effective 1973
Lot Area	16,500 sqft (0.379 acres)
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	31 DIABLO CIR
City	LAFAYETTE
State	CA
Zip	94549-3341
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-10
Legal Description	HIDDEN VALLEY ESTATES #2 LOT 88
Legal Subdivision	HIDDEN VALLEY ESTATES #2
Legal Lot Number	88
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1004
Census Tract	353002

Owner

Source: Contra Costa County records, as of July 14, 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 Record
Mailing Address	31 DIABLO CIR, LAFAYETTE, CA 94549-3341
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Aug 18, 2021	Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK
Aug 18, 2021	Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 28, 2007 · Amount on Record
Deed Sale	Mar 28, 2007 · Amount on Record
Prior Sale	Apr 25, 2003 · Amount on Record
Deed Document Number	200790277
Prior Transfer Date	Oct 1, 1993
Prior Transfer Doc	0000331438
Record Updated	Oct 29, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	31 DIABLO CIR, LAFAYETTE, CA 94549-3341
Transaction Type	Mortgage
Record Updated	Jun 8, 2026
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	31 DIABLO CIR, LAFAYETTE, CA 94549-3341

Mortgage

Document Number	0000229060
Date	Aug 18, 2021
Instrument	2021-229060

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Sep 1, 2036

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	31 DIABLO CIR, LAFAYETTE, CA 94549-3341
Transaction Type	Mortgage
Record Updated	Jun 8, 2026
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	31 DIABLO CIR, LAFAYETTE, CA 94549-3341

Mortgage

Document Number	0000229061
Date	Aug 18, 2021
Instrument	2021-229061

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Aug 26, 2046

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,299,519 (+2%) Land $956,601 Building $1,342,918
2025	$26,536.00 (+3.49%) Homeowner's exemption	$2,254,432 (+4.04%) Land $937,845 Building $1,316,587
2023	$25,642.00 (+1.55%) Homeowner's exemption	$2,166,891 Land $901,428 Building $1,265,463
2022	$25,251.00

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

Flood

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 AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force
Nearby Flood Claims	10 (1978–2001)
Claims Outside the SFHA	7 of 10
Most Recent Claim	Mar 2001 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims Severe Winter Storms, Flooding, Landslides, Mud Flows, Jan 1995 · 2 claims Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 2 claims

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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 93% of the US · lower than 96% 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.

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 277 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250

May also be available: AT&T, Etheric Networks, Unwired.

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