100 Marsh Pl, San Ramon, CA 94583 Property Records

Contra Costa County property record for 100 Marsh Pl, San Ramon, CA 94583 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,652 sqft · built 1971
Lot Size	0.258 acres (11,250 sqft)
Owner	Company Name on File
Tax Bill	$9,471 (2025)
Flood Zone	Zone X (minimal risk)
APN	`209-170-020-9`

Property Details

APN / Parcel Number

Primary APN	`209-170-020-9`
Alternative APN	`209-170-020`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,652 sqft Living Area
1st Floor Area	1,652 sqft

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1987
Lot Area	11,250 sqft (0.258 acres)
Garage Type	Attached
Garage Area	495 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	100 MARSH PL
City	SAN RAMON
State	CA
Zip	94583-2010
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TRACT 3869 LOT 78 EX MR
Legal Subdivision	TWIN CREEKS #2
Legal Tract	3869
Legal Lot Number	78
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	2
Census Block	2010
Census Tract	345206

Owner

Source: Contra Costa County records · APN 209-170-020-9

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	Company Name on File
Mailing Address	82 BLACKHAWK CLUB CT, DANVILLE, CA 94506-4513
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Transfer Date	Jan 18, 2002
Transfer Doc	0000025794
Record Updated	Sep 20, 2026

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	San Ramon City
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2026		$791,300 (+2%) Land $514,975 Building $276,325
2025	$9,471.00 (+3.85%)	$775,785 (+4.04%) Land $504,878 Building $270,907
2023	$9,120.00 (+0.75%)	$745,663 Land $485,274 Building $260,389
2022	$9,052.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133452062, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Moderate above 45% of the US · above 26% of California
Wildfire Likelihood	About 1 in 1,163 per year
Exposure	Indirect within ember reach

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, availability as of December 31, 2025 · Published October 2026 · based on 547 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 2,000
Unwired	Fixed Wireless	300 / 25
Verizon	Fixed Wireless	300 / 20
Etheric Communications, LLC.	Fixed Wireless (licensed-by-rule)	250 / 100
AT&T	DSL	100 / 20

Availability varies by address; speeds are provider-advertised maximums, not measured.