20 Adak Ct, Walnut Creek, CA 94597 Property Records

Contra Costa County property record for 20 Adak Ct, Walnut Creek, CA 94597

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,337 sqft · built 1948
Lot Size	0.184 acres (8,034 sqft)
Owner	2 Individual Names on File
Last Sale	$1,250,000 (Feb 2026)
Tax Bill	$4,612 (2025)
Deeds & Mortgages	May 2021 Mortgage Feb 2026 Sale & Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`171-250-030-3`

Property Details

APN / Parcel Number

Primary APN	`171-250-030-3`
Alternative APN	`171-250-030`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,337 sqft Living Area
1st Floor Area	1,337 sqft

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1970
Lot Area	8,034 sqft (0.184 acres)
Garage Type	Attached
Garage Area	350 sqft
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	20 ADAK CT
City	WALNUT CREEK
State	CA
Zip	94597-2424
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10
Legal Description	ADAK HOMESITES LOT 2
Legal Subdivision	ADAK HOMESITES
Legal Lot Number	2
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2003
Census Tract	340003

Owner

20 Adak Ct is owned and occupied by two individuals who bought it in February 2026.

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

Owner of Record	2 Individual Names on File
Mailing Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Occupancy	Owner Occupied
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
May 10, 2021	Deed of Trust, Mortgage · Conventional Mortgage GOLDEN EMPIRE MORTGAGE INC
Feb 19, 2026	Grant Deed, Transfer · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP
Dec 23, 2025	Grant Deed, Transfer · Stand-Alone First Mortgage KIAVI FUNDING INC
Dec 8, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage NETWORK CAPITAL FUNDING CORP
Dec 8, 2021	Intrafamily Transfer, Transfer UNISOURCE
Mar 24, 2021	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 19, 2026 · Amount on File
Deed Sale	Feb 19, 2026 · Amount on File
Prior Sale	Dec 23, 2025 · Amount on File
Deed Document Number	202616651
Prior Transfer Date	Oct 7, 2021
Prior Transfer Doc	0000333528
Record Updated	Sep 20, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Transaction Type	Mortgage
Record Updated	Mar 6, 2026
Title Company	CHICAGO TITLE COMPANY-SD, CHICAGO TITLE COMPANY SD

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424

Mortgage

Document Number	0000139393
Date	May 10, 2021
Instrument	2021-139393

Lender

Name	GOLDEN EMPIRE MORTGAGE INC
Type	Mortgage Company
Address	BAKERSFIELD, CA 93309

Agreement

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

February 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 19, 2026
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Document Number	0000016651
Map Reference	MB 33 PG 13
Instrument Date	Feb 13, 2026
Instrument	2026- 016651
Transaction Type	Transfer
Record Updated	Mar 6, 2026
Title Company	CHICAGO 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
Relationship	Joint Tenants
Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424

Mortgage

Document Number	0000016652
Date	Feb 19, 2026
Instrument	2026- 016652

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2056

December 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 23, 2025
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Document Number	0000143047
Map Reference	MB 33 PG 13
Instrument Date	Dec 19, 2025
Instrument	2025- 143047
Transaction Type	Transfer
Record Updated	Jan 1, 2026
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount 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	20 ADAK CT, WALNUT CREEK, CA 94597-2424

Mortgage

Document Number	0000143048
Date	Dec 23, 2025
Instrument	2025- 143048

Lender

Name	KIAVI FUNDING INC
Type	Mortgage Company

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 8, 2021
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Document Number	0000333528
Map Reference	MB 33 PG 13
Instrument Date	Oct 7, 2021
Instrument	2021-333528
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	UNISOURCE

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	20 ADAK CT, WALNUT CREEK, CA 94597-2424

Mortgage

Document Number	0000333529
Date	Dec 8, 2021
Instrument	2021-333529

Lender

Name	NETWORK CAPITAL FUNDING CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Nov 1, 2051

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 8, 2021
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Document Number	0000333530
Map Reference	MB 33 PG 13
Instrument Date	Oct 7, 2021
Instrument	2021-333530
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	UNISOURCE

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

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 24, 2021
Property Address	20 ADAK CT, WALNUT CREEK, CA 94597-2424
Document Number	0000089325
Map Reference	MB 33 PG 13
Instrument Date	Mar 1, 2021
Instrument	2021-089325
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	20 ADAK CT, WALNUT CREEK, CA 94597-2424

Tax Assessment & Valuation

The 2025 property tax bill for 20 Adak Ct was $4,612.

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		$1,025,000 (+197.22%) Land $775,000 Building $250,000
2025	$4,612.00 Homeowner's exemption	$344,866 Land $229,185 Building $115,681
2023	$4,415.00 (+0.91%) Homeowner's exemption	$331,477 Land $220,287 Building $111,190
2022	$4,375.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 20 Adak 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 20 Adak 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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