645 Keith Ct, Walnut Creek, CA 94597 Property Records

Contra Costa County property record for 645 Keith Ct, Walnut Creek, CA 94597

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,124 sqft · built 1973
Lot Size	0.181 acres (7,875 sqft)
Owner	2 Individual Names on File
Last Sale	$1,318,000 (Apr 2026)
Tax Bill	$14,614 (2025)
Deeds & Mortgages	Apr 2026 Sale & Mortgage Nov 2021 Sale & Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`171-240-060-3`

Property Details

APN / Parcel Number

Primary APN	`171-240-060-3`
Alternative APN	`171-240-060`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,124 sqft Living Area
1st Floor Area	2,124 sqft

Exterior

Year Built	Built 1973
Effective Year Built	Effective 1974
Lot Area	7,875 sqft (0.181 acres)
Garage Type	Attached
Garage Area	504 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	645 KEITH CT
City	WALNUT CREEK
State	CA
Zip	94597-2508
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R8
Legal Description	TRACT 4185 LOT 11
Legal Subdivision	SUBDIVISION 4185
Legal Tract	4185
Legal Lot Number	11
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	4
Census Block	4004
Census Tract	340001

Owner

645 Keith Ct is owned by two individuals who bought it in April 2026.

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

Owner of Record	2 Individual Names on File
Mailing Address	75 HUNT CLUB CIR, EAST AMHERST, NY 14051-1869
Owner Type	Individual
Vesting	Joint Tenants

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
Apr 13, 2026	Grant Deed, Transfer · Conventional Mortgage OLD REPUBLIC TITLE
Nov 18, 2021	Grant Deed, Transfer · Conventional Mortgage GOOGAIN INC
Nov 18, 2021	Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Jan 10, 2017	Quit Claim Deed, Transfer PLACER TITLE COMPANY, PLACER TITLE CO.
Jan 10, 2017	Quit Claim Deed, Transfer · Conventional Mortgage FIRST NTHRN BK/DIXON

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 13, 2026 · Amount on File
Deed Sale	Apr 13, 2026 · Amount on File
Prior Sale	Nov 18, 2021 · Amount on File
Deed Document Number	202636761
Prior Transfer Date	Nov 9, 2021
Prior Transfer Doc	0000319769
Record Updated	Sep 20, 2026

April 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 13, 2026
Property Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508
Document Number	0000036761
Instrument Date	Apr 3, 2026
Instrument	202636761
Transaction Type	Transfer
Record Updated	Jul 2, 2026
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$146,429.80
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	75 HUNT CLUB CIR, EAST AMHERST, NY 14051-1869

Mortgage

Document Number	0000036762,
Date	Apr 13, 2026
Instrument	202636762

Lender

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 1, 2056

Interest

Rate Type	Fixed Rate
Rate	5.98%
Initial Type	Fixed Rate
Max Rate	-1%

November 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 18, 2021
Property Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508
Document Number	0000319770
Map Reference	MB 149 PG 44
Instrument Date	Nov 9, 2021
Instrument	2021-319770
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508

Mortgage

Document Number	0000319771
Date	Nov 18, 2021
Instrument	2021-319771

Lender

Name	GOOGAIN INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2051

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Nov 18, 2021
Property Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508
Document Number	0000319769
Map Reference	MB 149 PG 44
Instrument Date	Nov 9, 2021
Instrument	2021-319769
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

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
Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 10, 2017
Property Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508
Document Number	0000005523
Instrument Date	Jan 5, 2017
Instrument	5523
Transaction Type	Transfer
Record Updated	Jan 17, 2017
Title Company	PLACER TITLE COMPANY, PLACER TITLE CO.

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	645 KEITH CT WALNUT CREEK CA 945972508, WALNUT CREEK, CA 94597-2508

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 10, 2017
Property Address	645 KEITH CT, WALNUT CREEK, CA 94597-2508
Document Number	0000005521
Instrument Date	Jan 5, 2017
Instrument	5521
Transaction Type	Transfer
Record Updated	Jan 17, 2017
Title Company	PLACER TITLE COMPANY, PLACER TITLE CO.

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	645 KEITH CT WALNUT CREEK CA 945972508, WALNUT CREEK, CA 94597-2508

Mortgage

Document Number	5522,
Date	Jan 10, 2017
Instrument	5522

Lender

Name	FIRST NTHRN BK/DIXON
Type	Bank
Address	DAVIS, CA 95616

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jan 9, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 645 Keith Ct was $14,614.

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
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,277,269 (+2%) Land $952,540 Building $324,729
2025	$14,614.00 Homeowner's exemption	$1,252,225 Land $933,863 Building $318,362
2023	$14,050.00 (+0.89%) Homeowner's exemption	$1,203,600 Land $897,600 Building $306,000
2022	$13,926.00

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

Flood

FEMA maps place 645 Keith Ct in Zone X, an area of minimal flood risk, though there have been 2 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 8 (10% premium discount)
Nearby Flood Policies	1 in force
Nearby Flood Claims	2 (1982–1986)
Most Recent Claim	Feb 1986 · Severe Storms & Flooding

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 645 Keith Ct is low, with less than 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 99.8% of the US · lower than 99.8% of California
Wildfire Likelihood	Under 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 490 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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