558 Mount Dell Dr, Clayton, CA 94517 Property Records

Contra Costa County property record for 558 Mount Dell Dr, Clayton, CA 94517

Property Summary

Property Type	Townhouse
Details	3 bd · 2 ba · 1,658 sqft · built 1975
Lot Size	0.069 acres (3,016 sqft)
Owner	Trust Name on File
Tax Bill	$2,720 (2025)
Deeds & Mortgages	Jun 2023 Reverse Mortgage
Flood Zone	Zone X (minimal risk)
APN	`119-301-011-1`

Property Details

APN / Parcel Number

Primary APN	`119-301-011-1`
Alternative APN	`119-301-011`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,658 sqft Living Area
Gross Area	2,094 sqft
1st Floor Area	1,658 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1975
Effective Year Built	Effective 1977
Architectural Style	Townhouse
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	3,016 sqft (0.069 acres)
Lot Dimensions	63 ft deep x 51 ft wide
Garage Type	Attached
Garage Area	436 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	558 MT DELL DR
City	CLAYTON
State	CA
Zip	94517-1503
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	T04504 L0021 B
Legal Subdivision	SUBDIVISION 4504
Legal Tract	04504
Legal Lot Number	21
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3009
Census Tract	355306

Owner

558 Mount Dell Dr, a townhouse, is owner-occupied and held in a trust since June 2023.

Source: Contra Costa County records, as of August 25, 2026

Owner of Record	Trust Name on File
Mailing Address	558 MT DELL DR, CLAYTON, CA 94517-1503
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jun 7, 2023
Transfer Doc	0000058165
Record Updated	Oct 29, 2026

June 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	CONTRA COSTA CA
Recording Date	Jun 20, 2023
Property Address	558 MT DELL DR, CLAYTON, CA 94517-1503
Document Number	0000058165
Map Reference	MB 162 PG 21
Instrument Date	Jun 7, 2023
Instrument	2023-058165
Transaction Type	Transfer
Record Updated	Jun 29, 2023
Title Company	CHICAGO TITLE COMPANY

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	558 MT DELL DR, CLAYTON, CA 94517-1503

Mortgage

Document Number	0000058166
Date	Jun 20, 2023
Instrument	2023-058166

Lender

Name	AMERICAN PACIFIC MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Reverse Mortgage
Amount	Amount on Record
Term	802 Months
Due	Apr 18, 2090

Interest

Rate Type	Adjustable Rate
Rate	7.78%
Type Change Date	Aug 1, 2023
Change Frequency	Monthly
Index	1-Year T-Bill
Max Rate	12.7%

Tax Assessment & Valuation

The 2025 property tax bill for 558 Mount Dell Dr was $2,720 with a homeowner's exemption.

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$136,920 (+2%) Land $44,182 Building $92,738
2025	$2,720.00 Homeowner's exemption	$134,236 Land $43,316 Building $90,920
2023	$2,558.00 (+2.61%) Homeowner's exemption	$129,026 (+2%) Land $41,635 Building $87,391
2022	$2,493.00 Homeowner's exemption	$126,497 Land $40,819 Building $85,678

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

Flood

FEMA maps place 558 Mount Dell Dr in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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 AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	4 in force

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

Wildfire risk around 558 Mount Dell Dr is high, ranking above 77% of the US, with a 0.5% annual chance of wildfire.

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

Wildfire Risk	High above 77% of the US · above 54% 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	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 107 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
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20