1 Dos Posos, Orinda, CA 94563 Property Records

Contra Costa County property record for 1 Dos Posos, Orinda, CA 94563

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 3,920 sqft · built 2002
Lot Size	0.505 acres (22,000 sqft)
Owner	2 Trust Names on File
Last Sale	$3,600,000 (May 2023)
Tax Bill	$44,697 (2025)
Deeds & Mortgages	Aug 2023 Mortgage May 2023 Sale
Flood Zone	Zone X (minimal risk)
APN	`262-091-017`

Property Details

APN / Parcel Number

Primary APN	`262-091-017`
Alternative APN	`262-091-017-0`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	3,920 sqft Living Area
1st Floor Area	2,659 sqft
2nd Floor Area	1,261 sqft

Exterior

Year Built	Built 2002
Effective Year Built	Effective 2002
Lot Area	22,000 sqft (0.505 acres)
Garage Type	Attached
Garage Area	502 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central

Location & Zoning

Street Address	1 DOS POSOS
City	ORINDA
State	CA
Zip	94563-1849
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	HACIENDAS DEL ORINDA #2 LOT 245
Legal Subdivision	HACIENDAS DEL ORINDA 02
Legal Lot Number	245
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	3
Census Block	3014
Census Tract	354002

Owner

1 Dos Posos is owner-occupied and held in a trust since May 2023.

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

Owner of Record	2 Trust Names on File
Mailing Address	1 DOS POSOS, ORINDA, CA 94563-1849
Occupancy	Owner Occupied
Owner Type	Company
Vesting	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

Date	Document
Aug 4, 2023	Deed of Trust, Mortgage · Balloon Mortgage MACDONALD 2000 FAMILY TRUST
May 17, 2023	Grant Deed, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 17, 2023 · Amount on File
Deed Sale	May 17, 2023 · Amount on File
Prior Sale	Feb 8, 2012 · Amount on File
Deed Document Number	202346578
Prior Transfer Date	Jul 16, 1999
Prior Transfer Doc	0000220582
Record Updated	Oct 29, 2026

August 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	1 DOS POSOS, ORINDA, CA 94563-1849
Transaction Type	Mortgage
Record Updated	Aug 15, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1 DOS POSOS, ORINDA, CA 94563-1849

Mortgage

Document Number	0000074709
Date	Aug 4, 2023
Instrument	2023-074709

Lender

Name	MACDONALD 2000 FAMILY TRUST
Type	Private Party
Address	80875 VIA PORTOFINO, LA QUINTA, CA 92253

Agreement

Type	Balloon Mortgage
Amount	Amount on Record
Term	57 Months
Due	May 17, 2028

May 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	May 17, 2023
Property Address	1 DOS POSOS, ORINDA, CA 94563-1849
Document Number	0000046578
Map Reference	MB 19 PG 460
Instrument Date	May 9, 2023
Instrument	2023-046578
Transaction Type	Transfer
Record Updated	May 26, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1 DOS POSOS, ORINDA, CA 94563-1849
Investor	Possibly a Property Investor

Tax Assessment & Valuation

The 2025 property tax bill for 1 Dos Posos was $44,697 with a homeowner's exemption.

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

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	Orinda City
Secondary School District	Acalanes Union High School District (09 - 12)
Elementary School District	Orinda Union Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$3,820,348 (+2%) Land $2,653,020 Building $1,167,328
2025	$44,697.00 Homeowner's exemption	$3,745,440 Land $2,601,000 Building $1,144,440
2023	$25,319.00 (+2.39%)	$2,028,225 Land $1,183,133 Building $845,092
2022	$24,727.00

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

Flood

FEMA maps place 1 Dos Posos in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	8 in force
Nearby Flood Claims	11 (1982–2021)
Claims Outside the SFHA	3 of 11
Most Recent Claim	Oct 2021 · rainfall accumulation
Claims by Event	Severe Winter Storms, Flooding, And Mudslides, Feb 2017 · 2 claims Severe Storms, Flooding, Mud And Landslides, Dec 1996 · 2 claims

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 1 Dos Posos 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 93% of the US · lower than 96% of California
Wildfire Likelihood	0.02% annual chance
Exposure	None beyond 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 264 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20

May also be available: Etheric Networks, Unwired.

Cell Coverage

5G and 4G LTE (outdoors only)

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