829 Bertram St, Walnut Creek, CA 94598 Property Records

Contra Costa County property record for 829 Bertram St, Walnut Creek, CA 94598

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 3,433 sqft · built 1997
Lot Size	0.935 acres (40,728 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,500,000 (Jul 2023)
Tax Bill	$29,044 (2025)
Deeds & Mortgages	Jul 2023 Sale Feb 2022 Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`138-130-006-8`

Property Details

APN / Parcel Number

Primary APN	`138-130-006-8`
Alternative APN	`138-130-006`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	3,433 sqft Living Area
1st Floor Area	1,817 sqft
2nd Floor Area	1,616 sqft

Exterior

Year Built	Built 1997
Effective Year Built	Effective 1998
Lot Area	40,728 sqft (0.935 acres)
Garage Type	Attached
Garage Area	691 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	829 BERTRAM ST
City	WALNUT CREEK
State	CA
Zip	94598-5150
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R40
Legal Description	T7353 L3
Legal Subdivision	SUBDIVISION 7353
Legal Tract	7353
Legal Lot Number	3
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2000
Census Tract	338302

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 Individual Names on Record
Mailing Address	604 NANTUCKET CT, WALNUT CREEK, CA 94598-4017
Owner Type	Individual
Vesting	Tenants in Common

Deeds, Mortgages & Sale History

Date	Document
Jul 13, 2023	Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO
Feb 8, 2022	Deed of Trust, Mortgage · Conventional Mortgage MUFG UNION BANK NA
Jul 2, 2020	Affidavit of Death, Transfer ATTORNEY ONLY
Jun 18, 2019	Intrafamily Transfer, Transfer · ARM LAND HOME FINANCIAL SERVICES
Jun 20, 2019	Quit Claim Deed, Transfer NEW AMERICAN TITLE COMPANY, NEW AMERICAN TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 13, 2023 · Amount on Record
Deed Sale	Jul 13, 2023 · Amount on Record
Prior Sale	Apr 23, 2004 · Amount on Record
Deed Document Number	202366719
Prior Transfer Date	Jun 12, 2019
Prior Transfer Doc	0000093886
Record Updated	Oct 29, 2026

July 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 13, 2023
Property Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150
Document Number	0000066719
Map Reference	MB 358B PG 42
Instrument Date	Jul 10, 2023
Instrument	2023-066719
Transaction Type	Transfer
Record Updated	Jul 24, 2023
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
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	Tenants in Common
Address	604 NANTUCKET CT, WALNUT CREEK, CA 94598-4017

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150
Transaction Type	Mortgage
Record Updated	Nov 3, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150

Mortgage

Document Number	0000024502
Date	Feb 8, 2022
Instrument	2022-024502

Lender

Name	MUFG UNION BANK NA
Type	Bank
Address	SAN DIEGO, CA 92121

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Feb 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	2.62%
Type Change Date	Feb 1, 2032
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	4.62%
Index	Other
Max Rate	8.62%

July 2020: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 2, 2020
Property Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150
Document Number	0000131822
Instrument Date	May 28, 2020
Instrument	131822
Transaction Type	Transfer
Record Updated	Jul 22, 2020
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	829 BERTRAM ST WALNUT CREEK CA 945985150, WALNUT CREEK, CA 94598-5150

June 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 18, 2019
Property Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150
Document Number	0000092508
Map Reference	MB 358 PG 42
Instrument Date	Jun 12, 2019
Instrument	2019-092508
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	NORTH AMERICAN TITLE CO INC

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	Joint Tenants
Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150

Mortgage

Document Number	0000092509
Date	Jun 18, 2019
Instrument	2019-092509

Lender

Name	LAND HOME FINANCIAL SERVICES
Type	Mortgage Company

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.87%
Type Change Date	Jul 1, 2029
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.87%
Index	1-Year LIBOR
Max Rate	8.87%

June 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 20, 2019
Property Address	829 BERTRAM ST, WALNUT CREEK, CA 94598-5150
Document Number	0000093886
Instrument Date	Jun 12, 2019
Instrument	93886
Transaction Type	Transfer
Record Updated	Jun 28, 2019
Title Company	NEW AMERICAN TITLE COMPANY, NEW AMERICAN 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	Revocable Trust
Address	829 BERTRAM ST WALNUT CREEK CA 945985150, WALNUT CREEK, CA 94598-5150

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,601,000 (+2%) Land $1,768,680 Building $832,320
2025	$29,044.00 (+55.57%)	$2,550,000 (+57.53%) Land $1,734,000 Building $816,000
2023	$18,669.00 (+0.88%) Homeowner's exemption	$1,618,703 (+2%) Land $885,541 Building $733,162
2022	$18,506.00 Homeowner's exemption	$1,586,965 Land $868,178 Building $718,787

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
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	2 in force
Nearby Flood Claims	2 (1998–2016)
Most Recent Claim	Mar 2016 · other causes

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	High above 70% of the US · above 45% of California
Wildfire Likelihood	0.3% 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 110 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
AT&T DSL	100 / 20

May also be available: Astound Broadband.

Cell Coverage

5G (outdoors only) and 4G LTE

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