An extraordinary opportunity to own the largest private waterfront property on Lake Austin—a rare combination of acreage, privacy, and panoramic views along this most coveted stretch of Mount Bonnell. Spanning 7.31 acres with an astonishing 1,857 feet of prime waterfront, this one-of-a-kind estate offers endless possibilities for an iconic lakefront retreat. Lake Flato Architects have envisioned a breathtaking design for a contemporary main residence and guest house, complete with a private tram and two-slip boat dock, blending natural materials and timeless architecture with the site’s dramatic topography. This offering represents an unprecedented opportunity to create a generational legacy estate with unmatched scale and beauty on Lake Austin.
Active
$16,000,000
3412 Mount Bonnell Rd, Austin, TX 78731
0beds
0baths
7.31Acres
Unimproved Land
Built in ----
7.31 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Prime waterfrontLargest private waterfront propertyTwo-slip boat dockTimeless architecturePanoramic viewsDramatic topographyNatural materials
- 134 days |
- 1,965 |
- 60 |
Zillow last checked: 7 hours ago
Listing updated: March 16, 2026 at 12:22pm
Listed by:
Kirk Lewis (512) 422-2495,
Kuper Sotheby's Int'l Realty (512) 831-6577
Source: Unlock MLS,MLS#: 4364733
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 0
- Bathrooms: 0
Property
Features
- Has view: Yes
- View description: City Lights, Hill Country, Neighborhood, Panoramic, River
- Has water view: Yes
- Water view: River
- Waterfront features: Lake Front, Waterfront
- Body of water: Lake Austin
Lot
- Size: 7.31 Acres
- Features: Sloped Down, Steep Slope, Views
Details
- Additional structures: None
- Has additional parcels: Yes
- Parcel number: 01250701190000
- Special conditions: Standard
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Sewer Available
Community & HOA
Community
- Features: See Remarks
- Subdivision: Mt Bonnell Terrace Sec 04
Location
- Region: Austin
Financial & listing details
- Tax assessed value: $3,004,951
- Annual tax amount: $59,552
- Date on market: 11/12/2025
- Listing terms: Cash
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 11/12/2025 | Listed for sale | $16,000,000 |
Source:  Unlock MLS #4364733 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $61,496 -29.2% | $3,004,951 -31.4% |
| 2024 | $86,829 +18.2% | $4,381,265 +7.9% |
| 2023 | $73,463 -14.3% | $4,060,444 -6.5% |
| 2022 | $85,771 | $4,342,991 +71% |
| 2021 | -- | $2,540,400 +10.1% |
| 2020 | $51,380 +3.8% | $2,307,500 |
| 2019 | $49,493 +10.5% | $2,307,500 -1.4% |
| 2018 | $44,795 | $2,339,318 +15.6% |
| 2017 | $44,795 -23.8% | $2,023,293 +2.6% |
| 2016 | $58,822 | $1,972,789 +12.6% |
| 2015 | $58,822 | $1,752,170 -29.1% |
| 2014 | $58,822 | $2,471,708 +136.1% |
| 2013 | -- | $1,046,691 +2.1% |
| 2012 | -- | $1,025,345 +13.5% |
| 2011 | -- | $903,264 -0.3% |
| 2010 | -- | $905,997 +6.4% |
| 2009 | -- | $851,758 +10% |
| 2008 | -- | $774,325 +10% |
| 2007 | -- | $703,932 +10% |
| 2006 | -- | $639,938 +10% |
| 2005 | -- | $581,762 -0.1% |
| 2002 | $8,066 | $582,092 |
Find assessor info on the county website
BuyAbility℠ payment
Estimated monthly payment
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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Neighborhood: 78731
Nearby schools
GreatSchools rating
- 9/10Casis Elementary SchoolGrades: PK-5Distance: 1 mi
- 6/10O Henry Middle SchoolGrades: 6-8Distance: 2.1 mi
- 7/10Austin High SchoolGrades: 9-12Distance: 3.1 mi
Schools provided by the listing agent
- Elementary: Casis
- Middle: O Henry
- High: Austin
- 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.
Local experts in 78731
- Texas
- Travis County
- Austin
- 78731
- 3412 Mount Bonnell Rd
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