$6,500,000
Beds: 5
Baths: 4 full, 2 half
Sqft: 8,626
Sqft lot: 69,739
Acre lot: 1.60
19 Days On Market

Property listed by Moreland Properties 512-480-0848 (512) 480-0848

Status: Active
Property Type: Singlefamilyresidence
Year Built: 1996
Neighborhood: Island At Mount Bonnell Shores
Days On Website: 19

Property Details for 4400 Island Avenue, Austin, TX 78731

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.

Bathrooms

  • 2 half bathrooms
  • 4 full bathrooms
  • 6 total bathrooms

Bedrooms

  • 5 total bedrooms
  • Bedroom on main level

Building

  • Built in 1996
  • Stories: 2
  • 8,626 sqft living area
  • Masonry
  • Two

Community

  • Gated

Exterior Features

  • Boat Lift
  • Balcony
  • Boat Slip
  • Dock
  • Private Yard

Fireplaces

  • 2 fireplaces
  • Living Room
  • Outside

Floors

  • Stone

Foundation

  • Slab

Garage

  • 3 garage spaces

Water Features

  • Water Body Name: Lake Austin
  • Waterfront
  • Canal Front
  • Lake Front
  • Boat Ramp Lift Access

Heating

  • Central
  • Natural Gas

Home Owner's Association

  • Fee: $3,000
  • Fee Frequency: Annually
  • Common Area Maintenance

Interior Features

  • Wet Bar
  • Breakfast Bar
  • Bookcases
  • Built In Features
  • Crown Molding
  • Separate Formal Dining Room
  • Double Vanity
  • Entrance Foyer
  • French Doors Atrium Doors
  • High Ceilings
  • Interior Steps
  • Kitchen Island
  • Multiple Living Areas
  • Multiple Dining Areas
  • Main Level Primary
  • Pantry
  • Stone Counters
  • Soaking Tub
  • Study
  • Walk In Closets

Laundry

  • Main Level
  • Laundry Room

Listing

  • Property Subtype: Single Family Residence
  • First day on market
  • Listed on 2026-07-01

Location

  • County: Travis
  • Subdivision: Island At Mount Bonnell Shores

Lot

  • 1.601 acres
  • Area: 1.601
  • Trees Large Size
  • Waterfall

Parking

  • 3 covered spaces
  • Attached
  • Garage

Possession

  • Closing And Funding
  • Close Of Escrow

Property

  • Resale
  • Hills
  • Lake
  • River

Roof

  • Tile

Schools

  • Elementary School: Highland Park
  • Elementary School District: Austin ISD
  • Middle School: Lamar ( Austin ISD)
  • Middle School District: Austin ISD
  • High School: Mc Callum
  • High School District: Austin ISD

Sewer

  • Public Sewer

Taxes

  • Annual Amount: $114,304
  • Year: 2026

Utilities

  • Electricity Available
  • Natural Gas Available
  • Underground Utilities

Map View


$6,500,000 - 4400 Island Avenue, Austin, TX 78731

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4400 Island Avenue
Austin, TX 78731
County: Travis