4301 Mercer Ct, Concord, CA 94521 Property Records

Contra Costa County property record for 4301 Mercer Ct, Concord, CA 94521

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,080 sqft · built 1961
Lot Size	0.228 acres (9,936 sqft)
Owner	Trust Name on File
Last Sale	$525,000 (Aug 2005)
Tax Bill	$8,582 (2025)
Deeds & Mortgages	Apr 2019 Mortgage Jan 2023 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`115-252-008-4`

Property Details

APN / Parcel Number

Primary APN	`115-252-008-4`
Alternative APN	`115-252-008`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,080 sqft Living Area
1st Floor Area	1,080 sqft

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1961
Architectural Style	Ranch
Exterior Material	Stucco
Roof Material	Composition Shingle
Lot Area	9,936 sqft (0.228 acres)
Garage Type	Attached
Garage Area	360 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Wall Unit
Heating System	Floor/Wall Furnace
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	4301 MERCER CT
City	CONCORD
State	CA
Zip	94521-1931
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R7
Legal Description	TRACT 2847 LOT 30
Legal Subdivision	SUBDIVISION 2847
Legal Tract	2847
Legal Lot Number	30
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3004
Census Tract	333200

Owner

4301 Mercer Ct is held in a trust since January 2023.

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Trust Name on File
Mailing Address	4301 MERCER CT, CONCORD, CA 94521-1931
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 30, 2019	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE AFFINITY LLC
Jan 12, 2023	Intrafamily Transfer, Transfer
Jan 12, 2023	Affidavit of Death of Joint Tenant, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 19, 2005 · Amount on File
Deed Sale	Aug 19, 2005 · Amount on File
Deed Document Number	2005313807
Last Transfer Date	Jan 6, 2023
Transfer Doc	0000003267
Record Updated	Oct 29, 2026

April 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	4301 MERCER CT, CONCORD, CA 94521-1931
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	OLD REPUBLIC TITLE ORINDA

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000061215
Date	Apr 30, 2019
Instrument	2019-061215

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Non-Lending Institution
Address	CHICAGO, IL 60613

Agreement

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

January 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 12, 2023
Property Address	4301 MERCER CT, CONCORD, CA 94521-1931
Document Number	0000003268
Map Reference	MB 80 PG 45
Instrument Date	Sep 15, 2022
Instrument	2023-003268
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	Revocable Trust
Address	4301 MERCER CT, CONCORD, CA 94521-1931

January 2023: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	CONTRA COSTA CA
Recording Date	Jan 12, 2023
Property Address	4301 MERCER CT, CONCORD, CA 94521-1931
Document Number	0000003267
Map Reference	MB 80 PG 45
Instrument Date	Sep 15, 2022
Instrument	2023-003267
Transaction Type	Transfer
Record Updated	Jan 24, 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
Address	4301 MERCER CT, CONCORD, CA 94521-1931

Tax Assessment & Valuation

The 2025 property tax bill for 4301 Mercer Ct was $8,582.

Source: Contra Costa County assessment roll, as of July 14, 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

Year	Tax Bill	Assessed Value
2026		$678,000 (-1.17%) Land $404,865 Building $273,135
2025	$8,582.00	$686,000 Land $409,642 Building $276,358
2023	$8,505.00 (+8.14%)	$686,000 Land $410,000 Building $276,000
2022	$7,865.00

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

Flood

FEMA maps place 4301 Mercer Ct in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

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

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

Wildfire

The area around 4301 Mercer Ct has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within 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	CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003
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, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 502 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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