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Active
    • $6,500,000

    4400 Island Ave, Austin, TX 78731

    5beds
    8,626sqft
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    Single Family Residence
    Built in 1996
    1.6 Acres Lot
    $-- Zestimate®
    $754/sqft
    $250/mo HOA

    What's special

    Waterfront estateGenerous acreageGuest accommodationsSerene canalOpen floor planFive bedroomsYear-round gathering space
    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.
    12 days
    |
    922
    |
    51
    |

    Likely to sell faster than

    Zillow last checked:

    Listing updated:

    Listed by:

    Eric Moreland (512) 480-0848,

    Moreland Properties (512) 480-0848

    Source: Unlock MLS,MLS#: 9276221MLS Logo

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 6
      • Full bathrooms: 4
      • 1/2 bathrooms: 2
      • Main level bedrooms: 1
      Heating
      • Central, Natural Gas
      Cooling
      • Central Air
      Appliances
      • Included: Built-In Oven(s), Dishwasher, Disposal, Gas Cooktop, Double Oven, Refrigerator, Stainless Steel Appliance(s)
      Features
      • Bookcases, Breakfast Bar, Built-in Features, High Ceilings, Stone Counters, Crown Molding, Double Vanity, Entrance Foyer, French Doors, Interior Steps, Kitchen Island, Multiple Dining Areas, Multiple Living Areas, Pantry, Primary Bedroom on Main, Soaking Tub, Study/Home Office, Walk-In Closet(s), Wet Bar
      • Flooring: Stone
      • Windows: Window Treatments
      • Number of fireplaces: 2
      • Fireplace features: Living Room, Outside
      Interior area
      • Total interior livable area: 8,626 sqft

      Property

      Parking
      • Total spaces: 3
      • Parking features: Attached, Garage
      • Attached garage spaces: 3
      Accessibility
      • Accessibility features: None
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: Covered, Patio
      • Exterior features: Balcony, Boat Lift, Boat Slip, Boat Dock - Private, Private Yard
      • Pool features: None
      • Spa features: None
      • Fencing: None
      • Has view: Yes
      • View description: Hill Country, Lake, River
      • Has water view: Yes
      • Water view: Lake,River
      • Waterfront features: Canal Front, Lake Front
      • Body of water: Lake Austin
      Lot
      • Size: 1.6 Acres
      • Features: Trees-Large (Over 40 Ft), Waterfall
      Details
      • Additional structures: None
      • Parcel number: 01290705100000
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • Foundation: Slab
      • Roof: Tile
      Condition
      • Resale
      • New construction: No
      • Year built: 1996

      Utilities & green energy

      • Sewer: Public Sewer
      • Water: Public
      • Utilities for property: Electricity Available, Natural Gas Available, Underground Utilities

      Community & HOA

      Community
      • Features: Gated
      • Subdivision: Island At Mount Bonnell Shores
      HOA
      • Has HOA: Yes
      • Services included: Common Area Maintenance
      • HOA fee: $3,000 annually
      • HOA name: Island at Mt. Bonnell
      Location
      • Region: Austin

      Financial & listing details

      • Price per square foot: $754/sqft
      • Tax assessed value: $5,585,378
      • Annual tax amount: $114,303
      • Date on market: 7/1/2026
      • Listing terms: Cash,Conventional
      • Electric utility on property: Yes

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        7/1/2026Listed for sale$6,500,000+44.4%$754/sqft
        Source: Unlock MLS #9276221 Report a problem
        12/26/2022Listing removed--
        Source: Zillow Rentals Report a problem
        12/5/2022Listed for rent$10,000$1/sqft
        Source: Zillow Rental Manager Report a problem
        12/28/2020Sold--
        Source: Agent Provided Report a problem
        12/3/2020Pending sale$4,500,000$522/sqft
        Source: Kuper Sotheby's International Realty #9389903 Report a problem
        8/15/2020Price change$4,500,000-9.8%$522/sqft
        Source: Kuper Sotheby's International Realty #9389903 Report a problem
        3/25/2020Listed for sale$4,990,000-0.1%$578/sqft
        Source: Kuper Sotheby's International Realty #9389903 Report a problem
        10/11/2019Listing removed$4,995,000$579/sqft
        Source: Kuper Sotheby's Itl Rlty #6090359 Report a problem
        7/15/2019Pending sale$4,995,000$579/sqft
        Source: Kuper Sotheby's International Realty #6090359 Report a problem
        6/12/2019Price change$4,995,000-11.6%$579/sqft
        Source: Kuper Sotheby's International Realty #6090359 Report a problem
        10/18/2018Price change$5,650,000-10.2%$655/sqft
        Source: Kuper Sotheby's International Realty #6090359 Report a problem
        8/31/2018Listed for sale$6,295,000$730/sqft
        Source: Kuper Sotheby's International Realty #6090359 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$114,304 -4.6%$5,585,378 -7.6%
        2024$119,755 +44.5%$6,042,676 +32%
        2023$82,853 -17.5%$4,579,397 -20.2%
        2022$100,487 $5,735,795 +25.3%
        2021-- $4,575,831 +22.6%
        2020$53,736 +3.1%$3,733,400 -4.8%
        2019$52,140 +7.8%$3,923,100 +9.6%
        2018$48,367 $3,579,370 +0.1%
        2017$48,367 +3.6%$3,575,921 +6.2%
        2016$46,691 $3,367,430 +10%
        2015$46,691 $3,061,300 +10%
        2014$46,691 $2,783,000 +10%
        2013-- $2,530,000 +10%
        2012-- $2,300,000
        2011-- $2,300,000 -20.5%
        2010-- $2,892,133 +10%
        2009-- $2,629,212 +10%
        2008-- $2,390,193 +10%
        2007-- $2,172,903 +10%
        2006-- $1,975,366 -5.4%
        2002$43,488 $2,088,801
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: Highland Park

        Getting around

        12 / 100
        Car-Dependent
        0 / 100
        No Nearby Transit
        17 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Highland Park
        • Middle: Lamar (Austin ISD)
        • High: McCallum
        • District: Austin ISD

        Source: Unlock MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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