4400 ISLAND AVE

Austin, 78731
Updated Sep 28, 2026 • On market 124 days
$6,250,000
$866/sq ft
5 Beds
4 Full Baths
2 Half Baths
7,219 Sq Ft
1996 Built
124 Days on Market

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.

Property Details

Interior

  • Bedrooms 5
  • Full Baths 4
  • Half Baths 2
  • Living Area 7,219 Sq Ft

Property

  • Year Built 1996
  • Property Type Residential
  • Sub Type Single Family Residence
Listed by Moreland Properties
MLS# 9276221

Neighborhood

See what's nearby. Tap any of the buttons below to drop color-coded markers on the map — combine as many as you like. Tap a marker for its name, rating, and address. Use the + / − on the map to zoom.

The information being provided by Unlock MLS is for the consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the consumer may be interested in purchasing. Any information relating to real estate for sale referenced on this website comes from the Internet Data Exchange (IDX) program of Unlock MLS. Real estate listings held by brokerage firms other than Adam Timothy Group at Compass are marked with the IDX/MLS logo. Information deemed reliable but is not guaranteed accurate by Unlock MLS. All information should be independently reviewed and verified for accuracy. Some IDX listings may have been excluded from this website. Data last updated: Sep 28, 2026 10:37 PM GMT+0000.
Alejandro Your ATG AI assistant
My Favorites 0