4400 Island Ave, Austin, TX 78731

• 5 beds |
• 6 baths |
• 8,626 sqft

Property Description

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.

Listing Status:

Active

Data Last Updated:

July 6, 2026 at 5:19AM

Listing Office:

Moreland Properties : (512) 480-0848

Listing Agent:

Eric Moreland : (512) 480-0844

MLS ID:

9276221

Interior

• General: BookcasesBreakfast BarBuilt-in FeaturesCeiling-HighStone CountersCrown MoldingDouble VanityEntrance FoyerInterior StepsKitchen IslandMultiple Dining AreasMultiple Living AreasPantryPrimary Bedroom on MainSoaking TubStudy/Home OfficeWalk-In Closet(s)Wet Bar
• Appliances: Built-In Oven(s)DishwasherDisposalGas CooktopDouble OvenRefrigeratorStainless Steel Appliance(s)
• Laundry: Laundry RoomMain Level
• Flooring: Stone
• A/C: Central Air
• Heating: CentralNatural Gas
• Fireplace: Living RoomOutsideFireplaces: 2
• Eco/Green Feature: NoneNone

Exterior

• General: BalconyBoat LiftBoat SlipBoat Dock - PrivatePrivate Yard
• Other Structures: PatioCovered
• Pool: None
• Parking: AttachedGarageParking spaces: 6

Construction

• Roofing: Tile
• Windows: Window Treatments
• General: TwoSlab

Location

• HOA Amenities: GatedCommon Area Maintenance3000.0Annually
• Originating MLS: actris
• School District: Austin ISD
• County: Travis

Lot

• Zoning: LOT 1-A BLK B ISLAND AT MT BONNELL SHORES THE AMENDED PLAT OF LOTS 1&201290705100000
• View: Hill CountryLakeRiver
• Fencing: None

Utilities

• Utilities: Electricity AvailableNatural Gas AvailableUnderground Utilities
• Water: Public
• Sewer: Public Sewer

Financial

• Source: actris