616 Colby Ct, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 616 Colby Ct, Walnut Creek, CA 94598

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,683 sqft · built 1974
Lot Size	0.112 acres (4,875 sqft)
Owner	2 Individual Names on File
Last Sale	$839,000 (Dec 2013)
Tax Bill	$12,158 (2025)
Deeds & Mortgages	Sep 2020 Mortgage Feb 2022 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`135-202-006-7`

Property Details

APN / Parcel Number

Primary APN	`135-202-006-7`
Alternative APN	`135-202-006`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,683 sqft Living Area
Gross Area	3,248 sqft
1st Floor Area	1,344 sqft
2nd Floor Area	1,339 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1990
Architectural Style	Raised Ranch
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	4,875 sqft (0.112 acres)
Garage Type	Attached
Garage Area	565 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	616 COLBY CT
City	WALNUT CREEK
State	CA
Zip	94598-4012
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	PD
Legal Description	T04485 L0030 B
Legal Subdivision	WALNUT GREEN 01
Legal Tract	04485
Legal Lot Number	30
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2006
Census Tract	355302

Owner

616 Colby Ct is owned and occupied by two individuals who bought it in December 2013.

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

Owner of Record	2 Individual Names on File
Mailing Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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 22, 2020	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA
Feb 23, 2022	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA
Nov 18, 2019	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA
Aug 21, 2019	Deed of Trust, Mortgage BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 3, 2013 · Amount on File
Deed Sale	Dec 3, 2013 · Amount on File
Prior Sale	Mar 28, 2001 · Amount on File
Deed Document Number	2013280327
Prior Transfer Date	Dec 9, 2012
Prior Transfer Doc	0000322708
Record Updated	Oct 29, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	TITLE CONNECT INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012

Mortgage

Document Number	0000211875
Date	Sep 22, 2020
Instrument	2020-211875

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Sep 1, 2050

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012

Mortgage

Document Number	0000032965
Date	Feb 23, 2022
Instrument	2022-032965

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Jan 1, 2052

November 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012
Document Number	0000217968
Instrument Date	Nov 18, 2019
Transaction Type	Mortgage
Record Updated	Dec 17, 2019
Title Company	TITLE 365

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	616 COLBY CT WALNUT CREEK CA 945984012, WALNUT CREEK, CA 94598-4012

Mortgage

Document Number	0000217968
Date	Dec 5, 2019
Instrument	217968

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	616 COLBY CT, WALNUT CREEK, CA 94598-4012
Document Number	0000137702
Instrument Date	Aug 21, 2019
Transaction Type	Mortgage
Record Updated	Sep 2, 2019
Title Company	TITLE SERVICE AND LIAISON COMPANIES, SIMPLIFILE LC E-RECORDING

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	616 COLBY CT WALNUT CREEK CA 945984012, WALNUT CREEK, CA 94598-4012

Mortgage

Document Number	0000137702
Date	Aug 27, 2019
Instrument	137702

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Amount	Amount on Record
Term	360 Months
Due	Aug 26, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 616 Colby Ct was $12,158 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
Municipality	Walnut Creek City
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,049,053 (+2%) Land $580,168 Building $468,885
2025	$12,158.00 Homeowner's exemption	$1,028,485 Land $568,793 Building $459,692
2023	$11,685.00 (+0.89%) Homeowner's exemption	$988,550 Land $546,707 Building $441,843
2022	$11,582.00

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

Flood

FEMA maps place 616 Colby Ct in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 616 Colby Ct is moderate, ranking above 65% of the US, with a 0.2% annual chance of wildfire.

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

Wildfire Risk	Moderate above 65% of the US · above 40% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 192 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
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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