2415 Mariner Square Dr, Alameda, CA 94501 Property Records

Alameda County property record for 2415 Mariner Square Dr, Alameda, CA 94501

Property Summary

Property Type	Commercial Office
Details	9,684 sqft · built 1980
Lot Size	0.307 acres (13,381 sqft)
Owner	Company Name on Record
Last Sale	$2,800,000 (Aug 2013)
Tax Bill	$21,867 (2025)
Deeds & Mortgages	Jan 2020 Mortgage Jul 2020 Mortgage
Flood Zone	Zone AE (high risk)
APN	`74-1315-7`

Property Details

APN / Parcel Number

Primary APN	`74-1315-7`
Alternative APN	`074-1315-007-00`

Interior

Stories	2 Stories
Building Area	9,684 sqft Total Area

Exterior

Year Built	Built 1980
Effective Year Built	Effective 1980
Architectural Style	L-Shape
Construction Type	Wood
Fire Resistance	Wood or Wood & Steel Frame
Lot Area	13,381 sqft (0.307 acres)

Location & Zoning

Street Address	2415 MARINER SQUARE DR
City	ALAMEDA
State	CA
Zip	94501-1005
Property Category	Commercial
Property Type	Commercial > Office > Commercial Office
Legal Description	LOT: 00001 BLK: PM: 0109 PAGE: 0013 ;LOT: 00002 BLK: PM: 0109 PAGE: 0013 ;LOT: 00003 BLK: PM: 0109 PAGE: 0013
Jurisdiction	ALAMEDA CA
Township / Civil Division	ALAMEDA
Census Block Group	3
Census Block	3003
Census Tract	428700

Owner

Source: Alameda County records, as of August 5, 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 Record
Mailing Address	43 MORAGA WAY, ORINDA, CA 94563-3050
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Date	Document
Jan 22, 2020	Deed of Trust, Mortgage · Commercial Mortgage BOSTON PRIVATE BANK & TRUST COMPANY
Jul 31, 2020	Deed of Trust, Mortgage · Commercial Mortgage BOSTON PRIVATE BANK & TRUST COMPANY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 12, 2013 · Amount on Record
Deed Sale	Aug 12, 2013 · Amount on Record
Deed Document Number	2013276320
Prior Transfer Date	Apr 3, 2013
Prior Transfer Doc	0000148472
Record Updated	Oct 29, 2026

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	2415 MARINER SQUARE DR, ALAMEDA, CA 94501-1005
Transaction Type	Mortgage
Record Updated	Jul 19, 2022
Title Company	OLD REPUBLIC TTL CO OAKLAND

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000013650
Date	Jan 22, 2020
Instrument	2020013650

Lender

Name	BOSTON PRIVATE BANK & TRUST COMPANY
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	2415 MARINER SQUARE DR, ALAMEDA, CA 94501-1005
Transaction Type	Mortgage
Record Updated	Jul 19, 2022
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000183904
Date	Jul 31, 2020
Instrument	2020183904

Lender

Name	BOSTON PRIVATE BANK & TRUST COMPANY
Type	Bank
Address	SAN MATEO, CA 94402

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded
Term	57 Months
Due	Apr 1, 2025

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$907,731 (+2%) Land $272,569 Building $635,162
2025	$21,867.00 (+8.12%)	$889,937 (+4.04%) Land $267,226 Building $622,711
2023	$20,225.00	$855,386 Land $256,851 Building $598,535

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	10.0 ft
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on Record median of 39 policies
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	39 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

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

Wildfire Risk	Not rated no burnable land 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 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 163 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	1,000 / 75
Unwired Fixed Wireless	300 / 25
Etheric Networks Fixed Wireless	250 / 100
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Google Fiber, Sail Internet.

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