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5404 Martis Ct, El Sobrante, CA 94803 Property Records

Contra Costa County property record for 5404 Martis Ct, El Sobrante, CA 94803

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 1,737 sqft · built 1978
Lot Size0.138 acres (6,000 sqft)
Owner2 Trust Names on File
Tax Bill$10,517 (2025)
Deeds & MortgagesMar 2022 Transfer
Mar 2020 Transfer
+ 1 more
Flood ZoneZone X (minimal risk)
APN435-100-048-6

Property Details

APN / Parcel Number

Primary APN435-100-048-6
Alternative APN
  • 435-100-048

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms10 Rooms
Stories1 Story
Building Area1,737 sqft Living Area
Gross Area2,178 sqft
1st Floor Area1,401 sqft
Basement Area336 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1978
Effective Year BuiltEffective 1979
Architectural StyleRanch
Exterior MaterialStucco
Construction TypeFrame
Roof MaterialWood Shingle
Lot Area6,000 sqft (0.138 acres)
Garage TypeAttached
Garage Area441 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address5404 MARTIS CT
CityEL SOBRANTE
StateCA
Zip94803-3440
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR6
Legal DescriptionTRACT 4997 POR LOTS 8 & 10
Legal SubdivisionMAP/SUB 4997
Legal Tract4997
Legal Lot Number8,10
JurisdictionCONTRA COSTA CA
Township / Civil DivisionWEST CONTRA COSTA
Census Block Group3
Census Block3003
Census Tract361000

Owner

5404 Martis Ct is held in a trust since January 2022.

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

Owner of Record2 Trust Names on File
Mailing Address5412 MARTIS CT, EL SOBRANTE, CA 94803-3440
Owner TypeCompany
VestingTrust

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

DateDocument
Mar 15, 2022Intrafamily Transfer, Transfer
Mar 17, 2020Affidavit of Death, Transfer
ATTORNEY ONLY
Mar 17, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateJan 4, 2022
Transfer Doc0000046403
Record UpdatedSep 20, 2026

March 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateMar 15, 2022
Property Address5404 MARTIS CT, EL SOBRANTE, CA 94803-3440
Document Number0000046403
Map ReferenceMB 203 PG 7
Instrument DateJan 4, 2022
Instrument2022-046403
Transaction TypeTransfer
Record UpdatedJun 7, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address5412 MARTIS CT, EL SOBRANTE, CA 94803-3440

March 2020: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionCONTRA COSTA CA
Recording DateMar 17, 2020
Property Address5404 MARTIS CT, EL SOBRANTE, CA 94803-3440
Document Number0000051841
Instrument DateJan 22, 2020
Instrument51841
Transaction TypeTransfer
Record UpdatedApr 8, 2020
Title CompanyATTORNEY ONLY

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address5404 MARTIS CT EL SOBRANTE CA 948033440, EL SOBRANTE, CA 94803-3440

March 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateMar 17, 2020
Property Address5404 MARTIS CT, EL SOBRANTE, CA 94803-3440
Document Number0000051842
Instrument DateJan 22, 2020
Instrument51842
Transaction TypeTransfer
Record UpdatedApr 8, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address5404 MARTIN CT EL SOBRANTE CA 94803, EL SOBRANTE, CA 94803

Tax Assessment & Valuation

The 2025 property tax bill for 5404 Martis Ct was $10,517.

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Unified School DistrictWest Contra Costa Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$736,237 (+2%) Land $412,739 Building $323,498
2025$10,517.00$721,802 Land $404,647 Building $317,155
2023$10,063.00 (+1.3%)$693,776 Land $388,935 Building $304,841
2022$9,934.00

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

Flood

FEMA maps place 5404 Martis Ct in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2010.

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
Nearby Flood Claims2 (2010–2016)
Claims Outside the SFHA2 of 2
Most Recent ClaimApr 2016 · 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

Wildfire risk around 5404 Martis Ct is moderate, ranking above 45% of the US, with a 0.07% annual chance of wildfire.

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

Wildfire RiskModerate
above 45% of the US · lower than 73% of California
Wildfire Likelihood0.07% annual chance
ExposureIndirect
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 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 281 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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