4400 Island Ave, Austin TX 78731, Austin, TX 78731
About this property
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.
Basic Property Information
<strong>Dwelling Size - </strong> 7,219 ft2
From Public Records
<strong>Year Built - </strong> 1996
<strong>Stories - </strong> Two
<strong>Foundation - </strong> Slab
<strong>Garage - </strong> 3
Attached, Garage
<strong>Roof - </strong> Tile
<strong>Lot Size Acres - </strong> 1.601
<strong>Waterfront Features - </strong> Canal Front, Lake Front
<strong>Body of Water - </strong> Lake Austin
Bedrooms - 5
<strong>Main Level Bedrooms - </strong> 1
<strong>Bathrooms - </strong> 5
<strong>Full - </strong> 4
<strong>Half - </strong> 2
<strong>Living Rooms - </strong> 4
<strong>Dining Rooms - </strong> 2
<strong>Fireplaces - </strong> 2
Living Room, Outside
<strong>Pool on Property- </strong> None
<strong>Spa on Property- </strong> None
School District
<strong>School District - </strong> Austin ISD
<strong>Elementary - </strong> Highland Park
<strong>Middle - </strong> Lamar (Austin ISD)
<strong>Senior High - </strong> McCallum
Home Owners Association
<strong>Home Owners Association - </strong> Island at Mt. Bonnell
<strong>Fee - $</strong> 3000
<strong>Frequency - </strong> Annually
<strong>Includes - </strong> Common Area Maintenance
Amenities and Features
Other Features
Balcony
Boat Dock - Private
Boat Lift
Boat Slip
Bookcases
Breakfast Bar
Built-in Features
Built-In Oven(s)
Crown Molding
Dishwasher
Disposal
Double Oven
Double Vanity
Electrical Utility Available
Entrance Foyer
French Doors
Garage Attached
Gas Cooktop
Has Garage
Has Waterfront
High Ceilings
Home Owners Association
Interior Steps
Kitchen Island
Multiple Dining Areas
Multiple Living Areas
Pantry
Primary Bedroom on Main
Private Yard
Refrigerator
Soaking Tub
Stainless Steel Appliance(s)
Stone Counters
Study/Home Office
Walk-In Closet(s)
Wet Bar
Utilities
Heating: Central, Natural Gas Cooling: Central Air Electricity Available, Natural Gas Available, Underground Utilities
Sewer: Public Sewer Water: Public
Additional Details
<strong>Faces - </strong> East
<strong>Flooring - </strong> Stone
<strong>View - </strong> Hill Country, Lake, River
<strong>Lot Features - </strong> Trees-Large (Over 40 Ft), Waterfall
Based on information from the Austin Board of REALTORS® for the period 10/06/2026 through 10/06/2026. All information provided is deemed reliable but is not guaranteed and should be independently verified. The Austin Board of REALTORS®, ACTRIS and their affiliates provide the MLS and all content therein “AS IS” and without any warranty, express or implied.