2040 Casa Nuestra, Diablo, CA 94528 Property Records

Contra Costa County property record for 2040 Casa Nuestra, Diablo, CA 94528

Property Summary

Property Type	Single Family Home
Details	5 bd · 5 ba · 2,640 sqft · built 1966
Lot Size	0.528 acres (23,000 sqft)
Owner	Company Name on Record
Last Sale	$1,259,500 (Jun 2013)
Tax Bill	$19,803 (2025)
Deeds & Mortgages	Mar 2022 Mortgage Mar 2021 Transfer
Flood Zone	Zone X (minimal risk)
APN	`195-250-026`

Property Details

APN / Parcel Number

Primary APN	`195-250-026`
Alternative APN	`195-250-026-0`

Interior

Bedrooms	5 Beds
Full Baths	5 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,640 sqft Living Area
1st Floor Area	2,640 sqft

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1990
Lot Area	23,000 sqft (0.528 acres)
Garage Type	Attached
Garage Area	503 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	2040 CASA NUESTRA
City	DIABLO
State	CA
Zip	94528
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	MT DIABLO EST PARK #1 LOT 321
Legal Subdivision	MOUNT DIABLO ESTATE PARK 01
Legal Lot Number	321
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1013
Census Tract	346205

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	Company Name on Record
Mailing Address	2040 CASA NUESTRA, DIABLO, CA 94528
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 23, 2022	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Mar 12, 2021	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 4, 2013 · Amount on Record
Deed Sale	Jun 4, 2013 · Amount on Record
Deed Document Number	2013141054
Last Transfer Date	Feb 16, 2021
Transfer Doc	0000076333
Record Updated	Sep 20, 2026

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	2040 CASA NUESTRA, DIABLO, CA 94528
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2040 CASA NUESTRA, DIABLO, CA 94528

Mortgage

Document Number	0000050827
Date	Mar 23, 2022
Instrument	2022-050827

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	347 Months
Due	Feb 1, 2051

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Mar 12, 2021
Property Address	2040 CASA NUESTRA, DIABLO, CA 94528
Document Number	0000076333
Map Reference	MB 15 PG 301
Instrument Date	Feb 16, 2021
Instrument	2021-076333
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
Address	PO BOX 412, DIABLO, CA 94528-0412

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	PO BOX 412, DIABLO, CA 94528-0412
Investor	Possibly a Property Investor

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	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,704,396 (+2%) Land $1,318,852 Building $385,544
2025	$19,803.00 (+3.76%) Homeowner's exemption	$1,670,978 (+4.04%) Land $1,292,993 Building $377,985
2023	$19,085.00 (+0.84%) Homeowner's exemption	$1,606,094 Land $1,242,786 Building $363,308
2022	$18,926.00

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
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 18 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	18 in force
Nearby Flood Claims	1 (2017)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 2017 · Severe Winter Storms, Flooding, And Mudslides

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 76% of the US · above 52% of California
Wildfire Likelihood	0.5% 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	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 153 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
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Verizon.

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