For Sale House MLS# ACT9276221

4400 Island Ave

Austin, TX 78731

$6,500,000

About 4400 Island Ave

Situated within The Island, one of Austin’s most coveted gated communities on Lake Austin, this exceptional waterfront estate offers a rare combination of privacy, acreage, and direct lake access. Set on 1.6 acres along a serene canal, the property includes a spacious main residence and a separate one-bedroom guest house, creating an ideal setting for both everyday living and hosting family and friends. Designed for effortless entertaining, the main home features an open floor plan that connects expansive living spaces with the outdoors. Large windows frame peaceful water views, while the covered patio with a fireplace provides a year-round gathering space overlooking the property’s lush surroundings. Five bedrooms, four full bathrooms, and two half bathrooms offer flexibility and comfort across the thoughtfully designed residence. Outdoor amenities elevate the Lake Austin lifestyle, with a private dock featuring two boat slips for easy access to boating, paddleboarding, and waterfront recreation. Combining the security and prestige of The Island with generous acreage, guest accommodations, and coveted waterfront access, this property presents a rare opportunity to experience one of Austin’s most desirable lakefront settings. Tax and assessed values are estimates for illustration purposes only. All figures should be independently verified.

Property details

Property

Type
Single Family Residence
MLS type
Residential
Status
Active
Year built
1996
Stories
Two
Living area
7,219 sqft
Price / sqft
$900
Lot
1.601 AC / 69,739 SF
Full baths
4
Half baths
2
Original price
$6,500,000
MLS #
9276221

Interior

Features
Bookcases, Breakfast Bar, Built-in Features, Ceiling-High, Stone Counters, Crown Molding, Double Vanity, Entrance Foyer, Interior Steps, Kitchen Island, Multiple Dining Areas, Multiple Living Areas, Pantry, Primary Bedroom on Main, Soaking Tub, Study/Home Office, Walk-In Closet(s), Wet Bar
Appliances
Built-In Oven(s), Dishwasher, Disposal, Gas Cooktop, Double Oven, Refrigerator, Stainless Steel Appliance(s)
Flooring
Stone
Heating
Central, Natural Gas
Cooling
Central Air
Fireplaces
2
Laundry
Laundry Room,Main Level
Windows
Window Treatments

Exterior & lot

Features
Balcony, Boat Lift, Boat Slip, Boat Dock - Private, Private Yard
Roof
Tile
Foundation
Slab
Lot
Trees-Large (Over 40 Ft), Waterfall
Patio & porch
Covered, Patio
View
Hill Country, Lake, River
Waterfront
Canal Front, Lake Front
Parking
Attached, Garage
Garage spaces
3

Schools

District
Austin ISD
Elementary
Highland Park
Middle
Lamar (Austin ISD)
High
McCallum

Utilities

Utilities
Electricity Available, Natural Gas Available, Underground Utilities
Water
Public
Sewer
Public Sewer
Security
Smoke Detector(s)

Financial

HOA
Yes
Annual tax
$114,304
Tax year
2026
Parcel
01290705100000
Legal
LOT 1-A BLK B ISLAND AT MT BONNELL SHORES THE AMENDED PLAT OF LOTS 1&2
Special conditions
Standard

Location

Subdivision
Island At Mount Bonnell Shores
County
Travis
Directions
Balcones to Mt Bonnell to Island at Mount Bonnell neighborhood gate. Home is on Island Avenue near the exit gate.

Location

Neighborhood
Island At Mount Bonnell Shores

Ask about this property

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Listed by Eric Moreland, Moreland Properties

Listing information is provided by the participating MLS / IDX program and is deemed reliable but not guaranteed. All information should be independently verified. Equal Housing Opportunity.