2056 Casa Nuestra, Diablo, CA 94528 Property Records

Contra Costa County property record for 2056 Casa Nuestra, Diablo, CA 94528

Property Summary

Property Type	Single Family Home
Details	5 bd · 4.5 ba · 4,115 sqft · built 1967
Lot Size	0.528 acres (23,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,285,000 (Aug 2019)
Tax Bill	$28,767 (2025)
Deeds & Mortgages	Aug 2019 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`195-250-004-7`

Property Details

APN / Parcel Number

Primary APN	`195-250-004-7`
Alternative APN	`195-250-004`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	4,115 sqft Living Area
1st Floor Area	3,161 sqft
2nd Floor Area	954 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1967
Effective Year Built	Effective 1990
Exterior Material	Wood Siding
Roof Material	Wood Shingle
Lot Area	23,000 sqft (0.528 acres)
Garage Type	Attached
Garage Area	846 sqft
Parking Spaces	3 Parking Spaces
Deck Area	Deck Area

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	2056 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 317
Legal Subdivision	MOUNT DIABLO ESTATE PARK 01
Legal Lot Number	317
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	2 Individual Names on Record
Mailing Address	PO BOX 391, DIABLO, CA 94528-0391
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 27, 2019 · Amount on Record
Deed Sale	Aug 27, 2019 · Amount on Record
Prior Sale	Feb 26, 1999 · Amount on Record
Deed Document Number	2019137640
Prior Transfer Date	Jan 23, 1997
Prior Transfer Doc	0000019615
Record Updated	Oct 29, 2026

August 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Aug 27, 2019
Property Address	2056 CASA NUESTRA, DIABLO, CA 94528
Document Number	0000137640
Map Reference	MB 15 PG 301
Instrument Date	Aug 12, 2019
Instrument	2019-137640
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
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	Community Property with Right of Survivorship
Address	2056 CASA NUESTRA, DIABLO, CA 94528

Mortgage

Document Number	0000137642
Date	Aug 27, 2019
Instrument	2019-137642

Lender

Name	CHEVRON FCU
Type	Credit Union

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	2.5%
Type Change Date	Sep 1, 2024
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	4.5%
Index	1-Year LIBOR
Max Rate	7.5%

Mortgage

Document Number	0000137642
Date	Aug 27, 2019
Instrument	2019-137642

Lender

Name	CHEVRON FCU
Type	Credit Union
Address	OAKLAND, CA 94607

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	2.5%
Type Change Date	Sep 1, 2024
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	4.5%
Index	1-Year LIBOR
Max Rate	7.5%

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		$2,548,955 (+2%) Land $1,227,068 Building $1,321,887
2025	$28,767.00 (+3.68%) Homeowner's exemption	$2,498,976 (+4.04%) Land $1,203,008 Building $1,295,968
2023	$27,745.00 (+0.81%) Homeowner's exemption	$2,401,940 Land $1,156,295 Building $1,245,645
2022	$27,522.00

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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