
Set behind private gates along a protected stretch of open water on constant-level Lake LBJ, 507 Sandy Mountain Drive captures the rare balance of expansive lake views and calm waterfront living. Positioned just off the main body of the lake in a quiet enclave of Sunrise Beach, the property enjoys panoramic water vistas and a peaceful waterfront setting ideal for kayaking, swimming, and relaxed lakeside enjoyment. The Mediterranean-inspired Savant smart home blends timeless stone architecture, arched passageways, and limestone accents across 3,617 sq. ft. The main living area centers around a dramatic limestone fireplace and opens to a covered patio overlooking the lake, while the kitchen features granite countertops, custom cabinetry, a professional-grade range, and wine alcove. The main-level primary suite offers private patio access and a spa-like ensuite bath with a whirlpool tub and walk-in shower, while upstairs, two private guest suites each feature fireplaces and private patio access. Outdoor living unfolds beneath a canopy of mature oaks with multiple patios, an outdoor kitchen, and custom lakefront water feature. The oversized dock with Trex decking features a covered gathering space, large boat lift, and dual PWC lifts with touchless covers, delivering a refined waterfront retreat in the heart of Sunrise Beach
Property Type
Residential
Year Built
2008
Lot Size
0.27 acres
$/Sq Ft
$552
Garage
2 spaces
Listed by RE/MAX HORSESHOE BAY RESORT SA
Property Details
Features
Appliances
Flooring
Features
Construction
Lot Features
Fencing
Foundation
Patio / Porch
Parking
Waterfront
Verified property facts
507 Sandy Mountain DR is listed at $1,995,000 with 3 bedrooms, 3 full, 1 half bathrooms, 3,617 square feet, 0.27-acre lot. This places it above the 78643 median of $495,000.
507 Sandy Mountain DR is zoned for Llano ISD with assigned schools: Llano (elementary), Llano (middle), Llano (high). School assignments should be verified directly with the district.
507 Sandy Mountain DR is a Residential built in 2008 featuring 3 bedrooms, 3 full, 1 half bathrooms, 3,617 square feet, 0.27-acre lot.
507 Sandy Mountain DR is presented by the Keenan Group at Compass Real Estate, the #1 Austin Board of Realtors Team (2024) with 1,000+ career transactions and $1B+ in career volume across Austin's luxury market.
The most recent annual property tax for 507 Sandy Mountain DR is $21,456. Texas has no state income tax, so property taxes are a primary revenue source. Rates vary by jurisdiction and exemptions. Verify current amounts with the county appraisal district.
#1 Austin Board of Realtors Team. Over 1,000 successful transactions with high-end expertise.
25+ years advising buyers and sellers in this community
Listed with current price, original ask, and market time.

Llano ISD
Zoned assignments come from the property school fields available to us. District context schools are shown only when an assigned tier is missing. Contact the school district directly to verify current boundaries and enrollment eligibility.
20% ($399K)
$1,995,000
Luxury property intelligence
A sourced read on Sunrise Beach pricing, timing, and property scale. No automated valuation claim.
List price
$1,995,000
Price per sqft
$552/sqft
Vs. Sunrise Beach median
Not available
Days on market
5 days
Original to current
No verified reduction
$2M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Aug 1, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
With 20% down ($399,000) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 507 Sandy Mountain DR is around $12,140 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
At $1,995,000, 507 Sandy Mountain DR is in the Sunrise Beach market where there are currently 33 active listings in 78643.
507 Sandy Mountain DR includes verified waterfront access: Lake Front,Waterfront. Buyers should confirm shoreline, dock rights, and floodplain status during due diligence.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
1 event on record
Current Price
$1,995,000
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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