4400 Island Ave, Austin, TX

$6,500,000

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5

Beds

4.2

Baths

7,219

Square feet

1.60

Acres

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.

Features of 4400 Island Ave

MLS® # 9276221
Price $6,500,000
Bedrooms 5
Bathrooms 6.00
Full Baths 4
Half Baths 2
Square Footage 7,219
Acres 1.60
Year Built 1996
Type Residential
Sub-Type Single Family Residence
Status Active
Has Pool No

Water Feature/View

View Hills,Lake,River,Lake Austin
Is Waterfront Yes
Water Body Lake Austin

Community Information: Austin

Address 4400 Island Ave
Area 1B
Subdivision Island At Mount Bonnell Shores
City Austin
County Travis
State TX
Zip Code 78731

Amenities of 4400 Island Ave

Utilities Electricity Available, Natural Gas Available, Underground Utilities
Features Gated
Parking Attached, Garage
# of Garages 3

Interior of 4400 Island Ave

Interior Stone
Appliances Double Oven, Dishwasher, Gas Cooktop, Disposal, Refrigerator, Stainless Steel Appliance(s), Built-In Oven
Heating Central, Natural Gas
Fireplace No
# of Fireplaces 2
Fireplaces Living Room, Outside
# of Stories 2
Stories Two

Exterior of 4400 Island Ave

Exterior Features Balcony, Private Yard, Boat Lift, Boat Slip, Dock
Lot Description Trees Large Size, Waterfall
Roof Tile
Construction Masonry
Foundation Slab

School Information

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

Additional Information On 4400 Island Ave

Days on Market 49
Foreclosure No
Short Sale No
RE / Bank Owned No
HOA Fees 3000
HOA Fees Freq. Annually
Gated Community Yes

The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing Data Provided By: Moreland Properties(512) 480-0848. Based on information from the Austin Board of REALTORS® (alternatively, from ACTRIS) from August 19th, 2026 at 3:45am CDT. Neither the Board nor ACTRIS guarantees or is in any way responsible for its accuracy. 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. Data maintained by the Board or ACTRIS may not reflect all real estate activity in the market. All information provided is deemed reliable but is not guaranteed and should be independently verified.

Map to 4400 Island Ave, Austin

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