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Austin · Island At Mount Bonnell Shores

$6,500,000 25 days on market

4400 Island Ave, Austin, TX 78731

  • 5bedrooms
  • 5bathrooms
  • 8,526sqft
  • 1.6acres
  • 1996year built

About this home

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

Type
Single Family Residence
Levels
Two
Year built
1996
Lot size
1.60 acres
Subdivision
Island At Mount Bonnell Shores
MLS #
ACT9276221

Inside

Bedrooms
5
Bathrooms
5
Living area
8,526 sqft
Fireplaces
2

Outside / parking

Garage spaces
3
Waterfront
Yes

Schools

Elementary
Highland Park
High school
McCallum
District
Austin ISD

Costs

HOA
$3,000 / annually
Est. annual taxes
$114,304 (2026)

Listing

First listed
Jul 1, 2026
Days listed
25
Status
Active

Listed by Eric Moreland, Moreland Properties · [email protected] · MLS# ACT9276221 · Active

Estimate your monthly payment

Loan

Down payment
%
0%10%20%30%40%50%
Loan term
Interest rate (%)
3%5%7%9%

Yearly costs

Monthly payment

$0

Total monthly

Principal & interest
$0
Property tax
$0
Insurance
$0
HOA
$0
Loan amount
$0

Estimate only. Tax / insurance defaults are typical Texas figures; your actual numbers will vary. Talk with a lender for a real quote — I can refer you to one I trust.

Where this home sits

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