#1 Austin Board of Realtors Team 2024#1 Austin Board of Realtors Team 2024
3 bed, 3 bath, 3,241 sqft on 0.75 acres in Castle Acres. Horseshoe Bay, TX 78657. $2,750,000. Marble Falls ISD.
Experience waterfront living on the shores of Lake LBJ, one of Texas’ rare constant level lakes. Situated on approximately .739 acres, this stunning lake house offers 3 bedrooms, 3 bathrooms, and 3,241 square feet of thoughtfully designed living space with elevated lake views that create an incredible backdrop from both inside and outside the home.
Inside, you’ll find beautiful travertine and wood flooring, soaring high ceilings, built-ins throughout, and a spacious family room anchored by a cozy fireplace. The kitchen is designed for entertaining with granite countertops, a large island, and ample cabinetry. The primary suite is a true retreat featuring a stand alone soaking tub and a massive sliding glass door that opens to breathtaking views of the pool and lake.
Step outside to enjoy the covered patio with solid wood beams, outdoor grill area, and resort style setting perfect for relaxing or hosting guests. Follow the gentle path down to the private beach area where you can sit by the water, take in the scenery, and fully enjoy the lake lifestyle. With its elevated position, stunning views, and direct access to constant level Lake LBJ, this property offers the perfect blend of luxury, comfort, and waterfront living.
Verified property facts
5100 W Fm 2147 RD is listed at $2,750,000 with 3 bedrooms, 3 full bathrooms, 3,241 square feet, 0.75-acre lot. This places it above the ZIP 78657 single-family closed-sale median price of $1,318,000 (ZIP 78657 geography · single-family closed sales · median sale price · trailing 12 months as of Sep 25, 2026).
5100 W Fm 2147 RD is zoned for Marble Falls ISD with assigned schools: Marble Falls (elementary), Marble Falls (middle), Marble Falls (high). School assignments should be verified directly with the district.
5100 W Fm 2147 RD is a Residential built in 2010 featuring 3 bedrooms, 3 full bathrooms, 3,241 square feet, 0.75-acre lot.
5100 W Fm 2147 RD is listed by Mungia Real Estate. Keenan Group at Compass presents this IDX listing and provides the accompanying market analysis using MLS Grid / Unlock MLS data reviewed as of Sep 25, 2026.
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1 record on file
Every recorded listing, sale, and lease at 5100 W Fm 2147 RD, whoever represented it.
Prices shown are list prices. Closed sale prices are available to registered clients in accordance with ACTRIS rules.
Price Change with current price, original ask, and market time.
Marble Falls 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% ($550K)
Adjustable assumption - not a lending recommendation.
$2,750,000
Luxury property intelligence
A sourced read on Castle Acres pricing, timing, and property scale. No automated valuation claim.
List price
$2,750,000
Price per sqft
$849/sqft
Vs. Neighborhood guide reference price
Not available
Days on market
137 days
Original to current
$25K reduction
$2.8M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Sep 25, 2026.
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#1 ABOR Team 2024 with $1B+ career sales volume
The most recent annual property tax for 5100 W Fm 2147 RD is $24,275. 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.
This page does not assume a mortgage rate or publish a monthly payment for 5100 W Fm 2147 RD. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.
As of Sep 25, 2026, 5100 W Fm 2147 RD is offered at $2,750,000. The current MLS snapshot shows 142 active listings in 78657.
The MLS listing marks 5100 W Fm 2147 RD as waterfront. The reported waterfront feature is Lake Front. Confirm shoreline access, dock rights, and floodplain status from current property documents during due diligence.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
2 events on record
Current Price
$2,750,000
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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