3412 Mount Bonnell, Austin, TX 78731 | Col Realty  <div id="share-modal" class="share-modal-overlay" onclick="if(event.target===this)closeShare()"> <div class="share-modal-box"> <button class="share-modal-close" onclick="closeShare()">×</button> <h3 class="share-modal-title">Share this home</h3> <p id="share-modal-address" class="share-modal-address"></p> <div class="share-options"> <button class="share-opt" onclick="shareVia('copy')"><span class="share-opt-icon">🔗</span><span>Copy link</span></button> <button class="share-opt" onclick="shareVia('email')"><span class="share-opt-icon">✉️</span><span>Email</span></button> <button class="share-opt" onclick="shareVia('text')"><span class="share-opt-icon">💬</span><span>Text</span></button> <button class="share-opt" onclick="shareVia('facebook')"><span class="share-opt-icon" style="background:#1877f2;color:#fff;border-radius:50%;font-weight:700;font-size:16px;">f</span><span>Facebook</span></button> <button class="share-opt" onclick="shareVia('twitter')"><span class="share-opt-icon" style="background:#000;color:#fff;border-radius:50%;font-size:14px;font-weight:700;">𝕏</span><span>X / Twitter</span></button> <button class="share-opt" onclick="shareVia('whatsapp')"><span class="share-opt-icon">📱</span><span>WhatsApp</span></button> </div> <div id="share-copy-confirm" class="share-copy-confirm" style="display:none;">✅ Link copied to clipboard!</div> </div> </div> <script> const IS_AUTHENTICATED = false; // ── Favorites ────────────────────────────────────────────────────── function handleFavorite(btn, listingId) { if (!IS_AUTHENTICATED) { const modal = document.getElementById('login-modal'); if (modal) modal.style.display = 'flex'; return; } fetch('/accounts/favorite/' + listingId + '/', { method: 'POST', headers: { 'X-CSRFToken': 'YH9d0o8xYiIudVJ9Igk6NEycArBwkN6hBEVJPwlon7AgIrkJDVASTik6EN1Scf2g', 'Content-Type': 'application/json' } }) .then(r => r.json()) .then(data => { const saved = data.status === 'added'; btn.classList.toggle('saved', saved); const svg = btn.querySelector('svg'); svg.setAttribute('fill', saved ? 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Description

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.

Contact Agent

Col Realty

(512) 699-3810

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Property Details

Status	Active
MLS #	ACT211092278
Taxes	$59,553 (2025) / year
Type	Land
Lot Size	7.31 AC / 318,423 SF
County	Travis
Subdivision	Mt Bonnell Terrace Sec 04

Property Information

Community

See Remarks

🌊 Waterfront

Directions: Head south on State Hwy 1 Loop S, Take the 35th St exit, Take the 35th St W exit, Merge onto W 35th St, Turn right onto Mt Bonnell Rd, Destination will be on the left