218 Mountaire Cir, Clayton, CA 94517 Property Records

Contra Costa County property record for 218 Mountaire Cir, Clayton, CA 94517

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,619 sqft · built 1971
Lot Size	0.262 acres (11,400 sqft)
Owner	2 Individual Names on File
Last Sale	$1,150,000 (Jul 2026)
Tax Bill	$2,674 (2025)
Deeds & Mortgages	Jul 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`119-141-010-7`

Property Details

APN / Parcel Number

Primary APN	`119-141-010-7`
Alternative APN	`119-141-010`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,619 sqft Living Area
1st Floor Area	1,296 sqft
2nd Floor Area	1,323 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1972
Architectural Style	Cluster
Lot Area	11,400 sqft (0.262 acres)
Lot Dimensions	120 ft deep x 95 ft wide
Garage Type	Attached
Garage Area	506 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Street Address	218 MOUNTAIRE CIR
City	CLAYTON
State	CA
Zip	94517-1523
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TRACT 4011 LOT 9 EX 1/2 MR
Legal Subdivision	DANA HILLS SUBDIVISION 4011
Legal Tract	4011
Legal Lot Number	9
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3006
Census Tract	355306

Owner

Source: Contra Costa County records · APN 119-141-010-7

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 Individual Names on File
Mailing Address	218 MOUNTAIRE CIR, CLAYTON, CA 94517-1523
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 10, 2026 · Amount on Record
Deed Sale	Jul 10, 2026 · Amount on Record
Deed Document Number	202672983
Prior Transfer Date	Sep 12, 2025
Prior Transfer Doc	0000097454
Record Updated	Sep 20, 2026

July 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 10, 2026
Property Address	218 MOUNTAIRE CIR, CLAYTON, CA 94517-1523
Document Number	0000072983
Instrument Date	Jul 10, 2026
Instrument	202672983
Transaction Type	Transfer
Record Updated	Jul 17, 2026
Title Company	CHICAGO TITLE W, CHICAGO TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$127,765.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	218 MOUNTAIRE CIR, CLAYTON, CA 94517-1523

Mortgage

Document Number	0000072984,
Date	Jul 10, 2026
Instrument	202672984

Lender

Name	CAPITAL LENDING

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 01, 2056

Interest

Rate Type	Fixed Rate
Rate	6.53%
Initial Type	Fixed Rate
Max Rate	-1%

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	Clayton City
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value
2026		$129,161 (+2%) Land $44,223 Building $84,938
2025	$2,674.00 (+6.32%)	$126,629 (+4.04%) Land $43,356 Building $83,273
2023	$2,515.00 (+2.65%) Homeowner's exemption	$121,714 Land $41,673 Building $80,041
2022	$2,450.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 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
Nearby Flood Policies	4 in force

Wildfire

Wildfire Risk	Moderate above 52% of the US · lower than 69% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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.

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
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AT&T, Radiate Holdings.

Based on FCC filings for 351 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.