603 E Diaz Ln, Mountain House (Tracy), CA 95391 Property Records

San Joaquin County property record for 603 E Diaz Ln, Mountain House, CA 95391

Property Summary

Property Type	Residential Vacant Land
Lot Size	0.341 acres (14,869 sqft)
Owner	Individual Name on File
Last Sale	$850,000 (Jun 2026)
Tax Bill	$11,789 (2025)
Deeds & Mortgages	Jun 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`258-170-150-000`

Property Details

APN / Parcel Number

Primary APN	`258-170-150-000`

Exterior

Lot Area	14,869 sqft (0.341 acres)

Location & Zoning

Street Address	603 E DIAZ LN
City	MOUNTAIN HOUSE
State	CA
Zip	95391
Property Category	Residential
Property Type	Vacant Land > Residential
Legal Description	LOT 77 MOUNTAIN HOUSE NGBHD K UNIT 1 TRACT 3926
Legal Subdivision	MOUNTAIN HOUSE NBRHD K UN
Legal Tract	3926
Legal Lot Number	77
Jurisdiction	SAN JOAQUIN CA
Township / Civil Division	TRACY
Census Block Group	3
Census Block	3000

Owner

Source: San Joaquin County records · APN 258-170-150-000

Assessment roll updated September 24, 2025 · 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	Individual Name on File
Mailing Address	603 E DIAZ LN, MOUNTAIN HOUSE, CA 95391
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jun 22, 2026 · Amount on Record
Deed Sale	Jun 22, 2026 · Amount on Record
Deed Document Number	202656553
Record Updated	Sep 20, 2026

June 2026: Grant Deed

Document Type	Grant Deed
Jurisdiction	SAN JOAQUIN CA
Recording Date	Jun 22, 2026
Property Address	603 E DIAZ LN, MOUNTAIN HOUSE, CA 95391
Document Number	0000056553
Instrument Date	Jun 02, 2026
Instrument	202656553
Record Updated	Jul 07, 2026
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$94,435.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	603 E DIAZ LN, MOUNTAIN HOUSE, CA 95391

Mortgage

Document Number	0000056554,
Date	Jun 22, 2026
Instrument	202656554

Lender

Name	INSPIRE HOME LOANS INC

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	3.88%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

Tax Assessment & Valuation

Source: San Joaquin County records · Assessment roll updated September 24, 2025 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	San Joaquin County
Municipality	Mountain House City
Unified School District	Lammersville Joint 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
2025	$11,789.00	$345,000 Land $345,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Joaquin County (06077C), as of September 27, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

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

Wildfire

Wildfire Risk	High above 78% of the US · above 54% of California
Wildfire Likelihood	0.5% annual chance
Exposure	Direct burnable vegetation at the parcel

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

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA3910027, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF MOUNTAIN HOUSE serves 26,400 people
Water Source	Surface water
Last State Inspection	Dec 2025
Lead	Under 1 ppb (2025) 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.