1175 Mount Diablo Blvd, Walnut Creek, CA 94596 Property Records

Contra Costa County property record for 1175 Mount Diablo Blvd, Walnut Creek, CA 94596

Property Summary

Property Type	Condominium
Details	2 bd · 2 ba · 1,155 sqft · built 2010
Lot Size	0.009 acres (408 sqft)
Owner	Individual Name on File
Last Sale	$872,500 (Jun 2019)
Tax Bill	$11,708 (2025)
Deeds & Mortgages	Feb 2021 Mortgage Jun 2019 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`183-430-002`

Property Details

APN / Parcel Number

Primary APN	`183-430-002`
Alternative APN	`183-430-002-0`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,155 sqft Living Area
1st Floor Area	1,155 sqft

Exterior

Year Built	Built 2010
Effective Year Built	Effective 2010
Architectural Style	Condo/Apartment
Lot Area	408 sqft (0.009 acres)
Garage Type	Attached
Garage Area	378 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	1175 MT DIABLO BLVD
City	WALNUT CREEK
State	CA
Zip	94596-4888
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	T204PM43 PCL A B1 UB
Legal Subdivision	DUPLEXES/MT DIABLO BLVD
Legal Tract	204PM43
Legal Block	1
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	4
Census Block	4009
Census Tract	343001

Owner

1175 Mount Diablo Blvd, a condominium, is owned and occupied by an individual who bought it in June 2019.

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

Owner of Record	Individual Name on File
Mailing Address	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888
Occupancy	Owner Occupied
Owner Type	Individual

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
Feb 19, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Jun 17, 2019	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Aug 21, 2017	Deed of Trust, Mortgage · Conventional with PMI QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 17, 2019 · Amount on File
Deed Sale	Jun 17, 2019 · Amount on File
Prior Sale	May 27, 2011 · Amount on File
Deed Document Number	201991334
Prior Transfer Date	May 25, 2011
Prior Transfer Doc	0000107392
Record Updated	Sep 20, 2026

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888

Mortgage

Document Number	0000051583
Date	Feb 19, 2021
Instrument	2021-051583

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	356 Months
Due	Oct 1, 2050

June 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 17, 2019
Property Address	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888
Document Number	0000091334
Map Reference	MB 204 PG 43
Instrument Date	Jun 11, 2019
Instrument	2019-091334
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	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	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888

Mortgage

Document Number	0000091335
Date	Jun 17, 2019
Instrument	2019-091335

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2049

Mortgage

Document Number	0000091336
Date	Jun 17, 2019
Instrument	2019-091336

Lender

Name	JOHN NELSON ETAL
Type	Private Party
Address	305 STONEGATE DRIVE, ALAMO, CA 94507

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

August 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1175 MT DIABLO BLVD, WALNUT CREEK, CA 94596-4888
Document Number	0000158011
Instrument Date	Aug 21, 2017
Transaction Type	Mortgage
Record Updated	Sep 5, 2017
Title Company	TSI TITLE COMPANY/CA INC, TSI TITLE CO/CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	1175 MT DIABLO BLVD #B WALNUT CREEK CA 945964888, B, WALNUT CREEK, CA 94596-4888

Mortgage

Document Number	0000158011
Date	Aug 30, 2017
Instrument	158011

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	360 Months
Due	Aug 29, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 1175 Mount Diablo Blvd was $11,708.

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
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		$992,749 (+2%) Land $568,911 Building $423,838
2025	$11,708.00	$973,284 Land $557,756 Building $415,528
2023	$11,322.00 (+1.88%)	$935,493 Land $536,099 Building $399,394
2022	$11,113.00

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

Flood

FEMA maps place 1175 Mount Diablo Blvd in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone A, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	1 in force

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 1175 Mount Diablo Blvd is low, with 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 80% of the US · lower than 88% of California
Wildfire Likelihood	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 433 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
Xfinity Cable	2,000 / 2,000
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: Etheric Networks, Verizon.

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