4309 Roscommon Way, Dublin, CA 94568 Property Records

Alameda County property record for 4309 Roscommon Way, Dublin, CA 94568

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,902 sqft · built 2000
Lot Size	0.1 acres (4,375 sqft)
Owner	Trust Name on File
Last Sale	$1,075,000 (Aug 2015)
Tax Bill	$17,088 (2025)
Deeds & Mortgages	May 2021 Line of Credit May 2021 Mortgage + 5 more
Flood Zone	Zone X (minimal risk)
APN	`986-20-58`

Property Details

APN / Parcel Number

Primary APN	`986-20-58`
Alternative APN	`986-0020-058-00`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,902 sqft Living Area

Exterior

Year Built	Built 2000
Effective Year Built	Effective 2000
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	4,375 sqft (0.1 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	4309 ROSCOMMON WAY
City	DUBLIN
State	CA
Zip	94568-7813
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00056 BLK: TR: 7084
Legal Subdivision	TRACT 7084
Legal Tract	7084
Legal Lot Number	56
Jurisdiction	ALAMEDA CA
Township / Civil Division	LIVERMORE-PLEASANTON
Census Block Group	2
Census Block	2003
Census Tract	450101

Owner

4309 Roscommon Way is owner-occupied and held in a trust since April 2018.

Source: Alameda County records, as of August 5, 2026

Owner of Record	Trust Name on File
Mailing Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
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
May 21, 2021	Deed of Trust, Mortgage · Line of Credit PATELCO CU
May 21, 2021	Deed of Trust, Mortgage · Conventional Mortgage PATELCO CU
May 14, 2019	Deed of Trust, Mortgage · Line of Credit US BANK NA
Jul 3, 2019	Deed of Trust, Mortgage · ARM US BANK NA
Jul 31, 2020	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA
Jul 16, 2018	Quit Claim Deed, Transfer Quitclaim
Apr 23, 2018	Intrafamily Transfer, Transfer · ARM SAFE CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 14, 2015 · Amount on File
Deed Sale	Aug 14, 2015 · Amount on File
Prior Sale	May 20, 2002 · Amount on File
Deed Document Number	2015229193
Last Transfer Date	Apr 26, 2018
Transfer Doc	0000139331
Record Updated	Oct 29, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Transaction Type	Mortgage
Record Updated	Jun 10, 2021
Title Company	NATIONAL CLOSING SOLUTIONS

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813

Mortgage

Document Number	0000192316
Date	May 21, 2021
Instrument	2021192316

Lender

Name	PATELCO CU
Type	Credit Union
Address	DUBLIN, CA 94568

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	302 Months
Due	Jun 30, 2046

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Change Frequency	Monthly
Index	Other

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Transaction Type	Mortgage
Record Updated	Jun 10, 2021
Title Company	E-PLACER TITLE, PLACER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813

Mortgage

Document Number	0000192315
Date	May 21, 2021
Instrument	2021192315

Lender

Name	PATELCO CU
Type	Credit Union
Address	DUBLIN, CA 94568

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.68%
Type Change Date	Jun 1, 2028
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	4.68%
Index	1-Year CMT
Max Rate	8.68%

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SOLIDIFI TITLE AND CLOSING

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000089203
Date	May 14, 2019
Instrument	2019089203

Lender

Name	US BANK NA
Type	Bank
Address	OSHKOSH, WI 54902

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	359 Months
Due	Apr 6, 2049

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000126770
Date	Jul 3, 2019
Instrument	2019126770

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	ARM
Amount	Amount on Record
Term	360 Months
Due	Jul 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Type Change Date	Jul 1, 2024
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	5.25%
Index	1-Year CMT
Max Rate	8.25%

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813

Mortgage

Document Number	0000183663
Date	Jul 31, 2020
Instrument	2020183663

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	359 Months
Due	Jun 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.12%
Type Change Date	Sep 1, 2027
Change Frequency	Annually
Index	1-Year LIBOR

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jul 16, 2018
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Document Number	0000139331
Instrument Date	Apr 26, 2018
Instrument	139331
Transaction Type	Transfer
Record Updated	Jul 31, 2018

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	4309 ROSCOMMON WAY DUBLIN CA 945687813, DUBLIN, CA 94568-7813

April 2018: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Apr 23, 2018
Property Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813
Document Number	0000079888
Map Reference	MB 248 PG 75-85
Instrument Date	Apr 13, 2018
Instrument	2018079888
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4309 ROSCOMMON WAY, DUBLIN, CA 94568-7813

Mortgage

Document Number	0000079889
Date	Apr 23, 2018
Instrument	2018079889

Lender

Name	SAFE CU
Type	Credit Union

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	May 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.62%
Type Change Date	May 1, 2023
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.62%
Index	1-Year LIBOR
Max Rate	8.62%

Tax Assessment & Valuation

The 2025 property tax bill for 4309 Roscommon Way was $17,088 with a homeowner's exemption.

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Municipality	Dublin City
Unified School District	Dublin Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,290,998 (+1.45%) Land $392,418 Building $905,580
2025	$17,088.00 Homeowner's exemption	$1,272,552 Land $384,725 Building $887,827
2023	$16,638.00 Homeowner's exemption	$1,223,145 Land $369,788 Building $853,357	$1,645,920

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 4309 Roscommon Way in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective May 25, 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
Nearby Flood Policies	1 in force

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 4309 Roscommon Way is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% 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	DUBLIN SAN RAMON SERVICES DISTRICT serves 98,776 people · EPA ID CA0110009
Water Source	Purchased surface water from ZONE 7 WATER AGENCY
Last State Inspection	Sep 2024
Lead	Under 1 ppb (2023–2025) 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 471 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Sail Internet.

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