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About this home
Few Bay Area homes offer this combination of expansive lagoon frontage, a heated pool, and an oversized private dock. Lagoon views unfold from nearly every room of this estimated 3,300 sq. ft. waterfront residence. Positioned at the end of a quiet cul-de-sac, the home offers 5 bedrooms, 3 full baths, 2 half baths, a new roof, and a refreshed modern interior. Start the morning with a poolside workout or yoga, launch a paddleboard or kayak directly from your dock, take an afternoon swim, or gather with family and friends for outdoor dining. With room for backyard games, entertaining, exercise, and recreation, this expansive waterside setting makes an active outdoor lifestyle part of the daily routine. The versatile two-story floor plan offers excellent separation. A private first-floor bedroom with pool views and adjoining full bath is ideal for guests or multigenerational living. The formal living room features a fireplace and expansive windows. The refreshed eat-in kitchen offers new quartz countertops, stainless steel appliances, a breakfast bar, and opens to the family room. A formal dining room and powder room complete the main living areas. The primary suite features a fireplace, dual vanity areas, dual closets, and a gorgeous new shower. Two additional lagoon-facing bedrooms share a stylish Jack-and-Jill bath with a view shower. Spanning the width of the home, the fifth bedroom showcases soaring vaulted ceilings, panoramic lagoon views, a view balcony, wet bar, and half bath with potential to convert to a full bath. Its impressive scale offers flexibility as an executive office, media or game room, guest suite, or apartment-style retreat. Beyond your doorstep is the Alameda lifestyle: highly regarded schools, beaches, parks and shoreline trails, plus the shops, restaurants and neighborhood energy of Park Street and Webster Street. Explore Alameda Point and Spirit Alley for waterfront recreation, open spaces, wineries and breweries. With Oakland International Airport nearby, ferry service to San Francisco, and convenient connections throughout the Bay Area, Alameda offers a distinctive island community with the city within reach.
Single-familyProperty Type
1963Year Built
6,930 sq ftLot Size
$550Price/Sq.Ft.
$83/moHOA Dues
2 car garageParking
Listed by Rose Krinks•DRE #01783545• BHHS Drysdale Properties
•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #41153745
32 hours on Redfin • 553 views • 18 favorites
Redfin agents who toured
This waterfront property presents a unique lifestyle opportunity with its private dock and swimming pool, complemented by ample outdoor entertaining space.
The house has a unique waterfront setting with a swimming pool included. The interior has been updated with a modern feel, and there are lagoon views in most of the rooms throughout the house. The bedrooms are spacious and have plenty of storage...
spaces. Close to schools, shops, and other waterfront views.
South Shore, located between Park Street and the San Francisco Bay shoreline, is a coastal and residential Alameda neighborhood with a broad sandy beach and a long, low-slung retail corridor. The neighborhood’s character concentrates around South Shore Center along Otis Drive, where grocery aisles, casual eateries, and everyday services set a steady, walkable rhythm. Mid-century ranch homes and tidy apartment courts line wide streets, while the Bay Trail and shoreline paths frame daily routines with salt air and open water views. Crown Memorial State Beach and Crab Cove create a natural front yard for picnics, birdwatching, and paddle launches. Alameda Museum and the historic Alameda Theatre & Cineplex add a cultural counterpoint to the beach-and-errands cadence.
Provided by Walk Score and Local Logic
Offer insights
612 Fortress Isle · $1,799,000
$2.04M and above
75% chance or better to win
Why $2.04M+ is a strong offer
DAYS ON MARKET
2 days
The average home goes pending in 17 days.
SALE-TO-LIST
112.3%
Most homes are selling 12% above list price.
About offer insights
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Dining
Interior features
Family room
Two fireplaces, in the living room and primary bedroom
Bedrooms
5 bedrooms: 4 upstairs and 1 on the street level
Bathrooms
5 bathrooms: 3 full and 2 half
Updated baths
Stall shower
Shower over tub
Kitchen
Solid-surface counters
Dishwasher
Refrigerator
Laundry & utility
Laundry room
Laundry hookups
Flooring
Laminate flooring
Heating & cooling
Forced-air heating
Exterior features
Backyard
Side yard
Garden/play area
Level lot
Private in-ground outdoor pool
Home design
Single-family residence
Parking
Attached garage with 2 spaces
Construction
Built in 1963
Other siding
Shingle roof
Utilities
Public water
Public sewer
HOA & community
Alameda West Lagoon association
Pets allowed
Annual association fee of $997
Electricity and solar
View estimated energy costs and solar savings for this home
bridgeMLS, Bay East AOR, or Contra Costa AOR #41153745
Nov 13, 2026
Listed
$1,799,000
$550/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41142672
Nov 11, 2026
Listing Removed
—
Public Records
Nov 10, 2005
Sold
$1,300,000
$397/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40093198
Sep 27, 2005
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2025
$28,693 (+2.2%)
$646,913 + $1,500,444
$2,147,357
2024
$28,074 (+31.5%)
$634,231 + $1,471,030
$2,105,261
2023
$21,344 (+2.3%)
$621,799 + $1,442,195
$2,063,994
2022
$20,864 (+2.6%)
$455,312 + $1,062,395
$1,517,707
2021
$20,344 (+1.2%)
$455,312 + $1,062,395
$1,517,707
2020
$20,099 (+5.3%)
$446,387 + $1,041,571
$1,487,958
2019
$19,086 (+2.6%)
$441,811 + $1,030,894
$1,472,705
2018
$18,597 (+5.0%)
$433,152 + $1,010,688
$1,443,840
2017
$17,706 (−0.3%)
$416,337 + $971,455
$1,387,792
2016
$17,760 (+0.2%)
$416,337 + $971,455
$1,387,792
2015
$17,730 (+17.9%)
$408,175 + $952,410
$1,360,585
2014
$15,036 (+10.9%)
$345,000 + $805,000
$1,150,000
2013
$13,561 (+6.0%)
$345,000 + $805,000
$1,150,000
2012
$12,793 (−3.2%)
$304,200 + $709,800
$1,014,000
2011
$13,222 (+6.3%)
$285,000 + $665,000
$950,000
2010
$12,437 (−8.5%)
$299,700 + $699,300
$999,000
2009
$13,587 (−8.8%)
$299,700 + $699,300
$999,000
2008
$14,897
$330,000 + $770,000
$1,100,000
Public record
Public record
Zoning
Permits
Beds
4
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
6,930 Sq. Ft.
Year renovated
1970
Finished Sq. Ft.
3,271
Unfinished Sq. Ft.
—
Total Sq. Ft.
3,271
Year built
1963
Style
Single Family Residential
County
Alameda County
APN
074 125504400
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 16, 2026.
R-1
Y-F5
One-Family Residence District
It is intended that this district classification be applied in areas subdivided and used or designed to be used for one-family and two-family residential development, and that the regulations established will promote and protect a proper residential character in such districts.
Zone overlays
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Housing-Multiple units
Housing-Senior
Housing-Other
Infrastructure
Public service
Fire house
Library
Park & open space
Apr 20, 2026 • Final
Express reroof permit - residential
Roofing
Jul 11, 2019 • Final
Electrical - over the counter
Install new electrical circuits, outlets, light fixtures, switches, receptacles, plug moulding, and light tracks.
Electrical
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Climate risks
4/10 Flood Factor
Estimated 14-20% chance of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
3/10 Heat Factor
7 days above 83° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
16 unhealthy days expected this year, 16 days in 30 years
Provided by First Street
Historical weather
Alameda, CA • 94501
Average low and high temperatures (°F)
60°
47°
61°
49°
66°
52°
64°
52°
66°
54°
66°
55°
67°
57°
70°
59°
72°
61°
69°
57°
63°
52°
57°
48°
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
83/ 100
Very good sunlight
Sunscore
This home receives average direct sun exposure in Alameda. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9 hrs
5.3 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 612 Fortress Isle
We cannot show automated home-value estimates for this home.
Nearby homes have recently sold between $1,300,000 and $3,050,000.
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $1.3M to $3.0M.