420 Crest Ave, Alamo, CA 94507 Property Records

Contra Costa County property record for 420 Crest Ave, Alamo, CA 94507

Property Summary

Property Type	Single Family Home
Details	4 bd · 4.5 ba · 4,320 sqft · built 1989
Lot Size	0.287 acres (12,500 sqft)
Owner	2 Trust Names on File
Last Sale	$970,000 (Feb 2014)
Tax Bill	$14,277 (2025)
Deeds & Mortgages	Sep 2020 Mortgage Jan 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`188-283-014-2`

Property Details

APN / Parcel Number

Primary APN	`188-283-014-2`
Alternative APN	`188-283-014`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	4,320 sqft Living Area
1st Floor Area	2,578 sqft
2nd Floor Area	1,434 sqft
Basement Area	308 sqft

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1990
Lot Area	12,500 sqft (0.287 acres)
Garage Type	Attached
Garage Area	1,256 sqft
Parking Spaces	5 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	420 CREST AVE
City	ALAMO
State	CA
Zip	94507-2635
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	CASTLE HILL VISTA LOTS 13,14 & 15
Legal Subdivision	CASTLE HILL VISTA
Legal Lot Number	13
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1003
Census Tract	334200

Owner

420 Crest Ave is owner-occupied and held in a trust since February 2014.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	2 Trust Names on File
Mailing Address	420 CREST AVE, ALAMO, CA 94507-2635
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Sep 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK
Jan 26, 2022	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 28, 2014 · Amount on File
Deed Sale	Feb 28, 2014 · Amount on File
Deed Document Number	201431500
Prior Transfer Date	May 5, 1994
Prior Transfer Doc	0000187249
Record Updated	Oct 29, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	420 CREST AVE, ALAMO, CA 94507-2635
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	420 CREST AVE, ALAMO, CA 94507-2635

Mortgage

Document Number	0000220631
Date	Sep 29, 2020
Instrument	2020-220631

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2050

January 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 26, 2022
Property Address	420 CREST AVE, ALAMO, CA 94507-2635
Document Number	0000016207
Map Reference	VOL 24 PG 797
Instrument Date	Jan 21, 2022
Instrument	2022-016207
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	420 CREST AVE, ALAMO, CA 94507-2635

Tax Assessment & Valuation

The 2025 property tax bill for 420 Crest Ave was $14,277 with a homeowner's exemption.

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

Year	Tax Bill	Assessed Value
2026		$1,224,012 (+2%) Land $462,635 Building $761,377
2025	$14,277.00 Homeowner's exemption	$1,200,013 Land $453,564 Building $746,449
2023	$13,747.00 (+2.25%) Homeowner's exemption	$1,153,416 Land $435,952 Building $717,464
2022	$13,444.00

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

Flood

FEMA maps place 420 Crest Ave in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1982.

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
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	6 in force
Nearby Flood Claims	6 (1982–2000)
Claims Outside the SFHA	3 of 6
Most Recent Claim	Feb 2000 · tidal / storm surge

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 420 Crest Ave is moderate, ranking above 57% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire Risk	Moderate above 57% of the US · lower than 66% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Direct burnable vegetation

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

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, Verizon.

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