11 Sandstone Ct, Alamo, CA 94507 Property Records

Contra Costa County property record for 11 Sandstone Ct, Alamo, CA 94507

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,615 sqft · built 1960
Lot Size	0.504 acres (21,960 sqft)
Owner	2 Trust Names on File
Last Sale	$1,250,000 (Jul 2024)
Tax Bill	$14,583 (2025)
Deeds & Mortgages	Sep 2020 Transfer
Flood Zone	Zone X (minimal risk)
APN	`193-285-003-3`

Property Details

APN / Parcel Number

Primary APN	`193-285-003-3`
Alternative APN	`193-285-003`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,615 sqft Living Area
1st Floor Area	1,615 sqft

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1960
Lot Area	21,960 sqft (0.504 acres)
Garage Type	Attached
Garage Area	513 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	11 SANDSTONE CT
City	ALAMO
State	CA
Zip	94507-1615
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R20
Legal Description	TRACT 2805 LOT 22
Legal Subdivision	2805 STONE VLY ESTATES
Legal Tract	2805
Legal Lot Number	22
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1006
Census Tract	346102

Owner

11 Sandstone Ct is owner-occupied and held in a trust since July 2024.

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

Owner of Record	2 Trust Names on File
Mailing Address	11 SANDSTONE CT, ALAMO, CA 94507-1615
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable 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	2 Names on Deed
Last Sale	Jul 23, 2024 · Amount on File
Deed Sale	Jul 23, 2024 · Amount on File
Deed Document Number	202470222
Prior Transfer Date	Jul 17, 2024
Prior Transfer Doc	0000070221
Record Updated	Oct 29, 2026

September 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Sep 22, 2020
Property Address	11 SANDSTONE CT, ALAMO, CA 94507-1615
Document Number	0000211301
Instrument Date	Sep 15, 2020
Instrument	211301
Transaction Type	Transfer
Record Updated	Oct 9, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	PO BOX 236 ALAMO CA 945070236, ALAMO, CA 94507-0236

Tax Assessment & Valuation

The 2025 property tax bill for 11 Sandstone Ct was $14,583.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,275,000 (+2%) Land $1,173,000 Building $102,000
2025	$14,583.00	$1,250,000 Land $1,150,000 Building $100,000
2023	$1,987.00 (+0.76%)	$91,229 Land $35,315 Building $55,914
2022	$1,972.00

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.

Flood

FEMA maps place 11 Sandstone Ct in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 1987.

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
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 19 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	19 in force
Nearby Flood Claims	8 (1987–2012)
Claims Outside the SFHA	1 of 8
Most Recent Claim	Oct 2012 · tidal / storm surge

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 11 Sandstone Ct is low, with a 0.02% annual chance of wildfire.

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.02% annual chance
Exposure	Indirect 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 284 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
AT&T DSL	100 / 20