1607 Calle Arroyo, Diablo, CA 94528 Property Records

Contra Costa County property record for 1607 Calle Arroyo, Diablo, CA 94528

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 3,788 sqft · built 1915
Lot Size	0.551 acres (24,000 sqft)
Owner	Company Name on Record
Last Sale	$4,350,000 (Dec 2022)
Tax Bill	$50,852 (2025)
Deeds & Mortgages	Apr 2023 Transfer Dec 2022 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`195-141-020-6`

Property Details

APN / Parcel Number

Primary APN	`195-141-020-6`
Alternative APN	`195-141-020`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	3,788 sqft Living Area
1st Floor Area	2,465 sqft
2nd Floor Area	1,323 sqft

Exterior

Year Built	Built 1915
Effective Year Built	Effective 2005
Lot Area	24,000 sqft (0.551 acres)
Garage Type	Attached
Garage Area	756 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	1607 CALLE ARROYO
City	DIABLO
State	CA
Zip	94528
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	RECORD OF SURVEY 25 LSM 12 PCL A
Legal Subdivision	DIABLO
Legal Lot Number	A
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1000
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	1607 CALLE ARROYO, DIABLO, CA 94528
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 3, 2023	Intrafamily Transfer, Transfer
Dec 1, 2022	Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA NA
Oct 31, 2017	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 1, 2022 · Amount on Record
Deed Sale	Dec 1, 2022 · Amount on Record
Prior Sale	Oct 22, 2003 · Amount on Record
Deed Document Number	2022179473
Last Transfer Date	Feb 16, 2023
Transfer Doc	0000030552
Record Updated	Sep 20, 2026

April 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Apr 3, 2023
Property Address	1607 CALLE ARROYO, DIABLO, CA 94528
Document Number	0000030552
Map Reference	MB 25 PG 12
Instrument Date	Feb 16, 2023
Instrument	2023-030552
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	Family Trust
Address	PO BOX 868, DIABLO, CA 94528-0868

December 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Dec 1, 2022
Property Address	1607 CALLE ARROYO, DIABLO, CA 94528
Document Number	0000179473
Map Reference	MB 25 PG 12
Instrument Date	Nov 18, 2022
Instrument	2022-179473
Transaction Type	Transfer
Record Updated	Dec 7, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
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	PO BOX 868, DIABLO, CA 94528-0868

Mortgage

Document Number	0000179474
Date	Dec 1, 2022
Instrument	2022-179474

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Jan 1, 2038

October 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1607 CALLE ARROYO, DIABLO, CA 94528
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000204768
Date	Oct 31, 2017
Instrument	2017-204768

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	WESTMONT, IL 60559

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	2.87%
Adjustable	Adjustable Rate Rider
Type Change Date	Nov 1, 2024
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	4.87%
Index	1-Year LIBOR
Max Rate	7.87%

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		$4,616,254 (+2%) Land $2,653,020 Building $1,963,234
2025	$50,852.00 (+3.6%)	$4,525,740 (+4.04%) Land $2,601,000 Building $1,924,740
2023	$49,085.00 (+41.47%)	$4,350,000 Land $2,500,000 Building $1,850,000
2022	$34,697.00

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	Moderate above 63% of the US · lower than 61% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Direct burnable vegetation

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 130 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: Etheric Networks, Verizon.

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