1590 Dianda Dr, Concord, CA 94521 Property Records

Contra Costa County property record for 1590 Dianda Dr, Concord, CA 94521

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,892 sqft · built 1964
Lot Size	0.207 acres (9,000 sqft)
Owner	2 Company Names on File
Last Sale	$374,000 (Jul 2001)
Tax Bill	$7,030 (2025)
Deeds & Mortgages	May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`115-414-001-4`

Property Details

APN / Parcel Number

Primary APN	`115-414-001-4`
Alternative APN	`115-414-001`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,892 sqft Living Area
1st Floor Area	1,892 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Lot Area	9,000 sqft (0.207 acres)
Garage Type	Attached
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Street Address	1590 DIANDA DR
City	CONCORD
State	CA
Zip	94521-1951
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R7
Legal Description	TRACT 3172 LOT 21 EX MR
Legal Subdivision	CLAYTON SQUARE
Legal Tract	3172
Legal Lot Number	21
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3005
Census Tract	333200

Owner

Source: Contra Costa County records · APN 115-414-001-4

Assessment roll updated July 14, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on File
Mailing Address	1590 DIANDA DR, CONCORD, CA 94521-1951
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 06, 2001 · Amount on Record
Deed Sale	Jul 06, 2001 · Amount on Record
Prior Sale	Jul 09, 1999 · Amount on Record
Deed Document Number	2001192603
Last Transfer Date	Dec 19, 2024
Transfer Doc	0000004944
Record Updated	Sep 20, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1590 DIANDA DR, CONCORD, CA 94521-1951
Transaction Type	Mortgage
Record Updated	Nov 03, 2022
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000088112
Date	May 08, 2020
Instrument	2020-088112

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company
Address	SAN DIEGO, CA 92111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 01, 2050

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026

Property Jurisdictions

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

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2026		$563,533 (+2%) Land $238,191 Building $325,342
2025	$7,030.00 (+4.74%) Homeowner's exemption	$552,484 (+4.04%) Land $233,521 Building $318,963
2023	$6,712.00 (+1.44%) Homeowner's exemption	$531,032 Land $224,454 Building $306,578
2022	$6,617.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Radiate Holdings Cable	1,500 / 50
Unwired Fixed Wireless	300 / 25
T-Mobile USA Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Verizon.

Based on FCC filings for 502 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CONTRA COSTA WATER DISTRICT serves 210,500 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.