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910 Underhill Dr, Alamo, CA 94507 Property Records

Contra Costa County property record for 910 Underhill Dr, Alamo, CA 94507

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,886 sqft · built 1960
Lot Size0.47 acres (20,473 sqft)
OwnerCompany Name on Record
Tax Bill$5,412 (2025)
Deeds & MortgagesJun 2017 Transfer
Flood ZoneZone X (minimal risk)
APN201-063-008-1

Property Details

APN / Parcel Number

Primary APN201-063-008-1
Alternative APN
  • 201-063-008

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,886 sqft Living Area
1st Floor Area1,886 sqft

Exterior

Year BuiltBuilt 1960
Effective Year BuiltEffective 1960
Lot Area20,473 sqft (0.47 acres)
Garage TypeAttached
Garage Area483 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address910 UNDERHILL DR
CityALAMO
StateCA
Zip94507-2449
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR20
Legal DescriptionPORS RO SAN RAMON & LOT 2 TR 2604
Legal SubdivisionSAN RAMON RHO
Legal Tract2604
Legal Lot Number2
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group2
Census Block2003
Census Tract345204

Owner

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

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

Owner of RecordCompany Name on Record
Mailing Address910 UNDERHILL DR, ALAMO, CA 94507-2449
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateJun 8, 2017
Transfer Doc0000103359
Record UpdatedSep 20, 2026

June 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateJun 9, 2017
Property Address910 UNDERHILL DR, ALAMO, CA 94507-2449
Document Number0000103359
Instrument DateJun 8, 2017
Instrument103359
Transaction TypeTransfer
Record UpdatedJun 26, 2017

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address910 UNDERHILL DR ALAMO CA 945072449, ALAMO, CA 94507-2449

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Unified School DistrictSan Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$431,581 (+2%) Land $412,836 Building $18,745
2025$5,412.00 (+4.1%) Homeowner's exemption$423,120 (+4.04%) Land $404,742 Building $18,378
2023$5,199.00 (+0.78%) Homeowner's exemption$406,691 Land $389,026 Building $17,665
2022$5,159.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 11 policies
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies11 in force
Nearby Flood Claims5 (1993–2012)
Claims Outside the SFHA3 of 5
Most Recent ClaimDec 2012 · rainfall accumulation

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

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

Wildfire RiskHigh
above 70% of the US · above 45% of California
Wildfire Likelihood0.3% annual chance
ExposureDirect
burnable vegetation

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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 198 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
AT&T
DSL · Fiber in parts of the area		100 / 20

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