
*Open House: Sat Aug 29 11am - 1pm, Sun Aug 30 1pm - 3pm* Major price improvement—now offered at $2,299,000. Motivated seller and ready to review offers. This modern ranch on 1.5 private acres in Appaloosa Run offers Hill Country privacy just minutes from SH 45 and MoPac—and only 20 minutes from downtown Austin. The main residence features 4 bedrooms, 3.5 bathrooms, a dedicated office, flex space, and a 3-car garage, plus an attached 1-bedroom, 1-bathroom casita with a kitchenette and private entrance—ideal for guests, multigenerational living, or income potential.
Soaring ceilings, a floor-to-ceiling fireplace with a 72-inch insert, and 10-foot sliding glass doors connect the main living area to the covered deck, tiled pool surround, outdoor shower, and entertaining spaces. The kitchen features Italian Calacatta Monet marble, a commercial gas range, double ovens, custom hood, butler’s pantry, and a sink overlooking a lush interior atrium.
The primary suite is a true retreat with a spa-inspired bathroom, oversized shower, boutique hotel-style finishes, and custom closet details. Additional upgrades include solid-core doors, foam insulation, irrigation, gutters, and a private well. Mature trees, native wildlife, and peaceful acreage complete this rare offering.
Zoned to Baldwin Elementary, Gorzycki Middle, and Bowie High. Schedule your private showing today.
Property Type
Residential
Year Built
2026
Lot Size
1.50 acres
$/Sq Ft
$652
HOA
$25/year
Garage
3 spaces
Pool
Yes
Listed by RealTech Realty, LLC
Verified property facts
12104 Trailmaster DR is listed at $2,299,000 with 5 bedrooms, 4 full, 1 half bathrooms, 3,527 square feet, 1.50-acre lot. This places it above the ZIP 78737 single-family closed-sale median price of $858,000 (ZIP 78737 geography · single-family closed sales · median sale price · trailing 12 months as of Sep 3, 2026).
12104 Trailmaster DR is zoned for Austin ISD with assigned schools: Baldwin (elementary), Gorzycki (middle), Bowie (high). School assignments should be verified directly with the district.
12104 Trailmaster DR is a Residential built in 2026 featuring 5 bedrooms, 4 full, 1 half bathrooms, 3,527 square feet, 1.50-acre lot.
12104 Trailmaster DR is listed by RealTech Realty, LLC. Keenan Group at Compass presents this IDX listing and provides the accompanying market analysis using MLS Grid / Unlock MLS data reviewed as of Sep 4, 2026.
#1 Austin Board of Realtors Team. Over 1,000 successful transactions with high-end expertise.
25+ years advising buyers and sellers in this community
Property Details
Features
Appliances
Flooring
Features
Construction
Lot Features
Foundation
Patio / Porch
Parking
2 records on file
Every recorded listing, sale, and lease at 12104 Trailmaster DR, 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.
Public record data from county appraisal records. Market value can differ from assessed value.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-12.0% | — | $519,206 | — | — |
2024+3.6% | — | $589,697 | $300,000 | $216,834 |
2023+42.5% | — | $569,003 | $300,000 | $289,697 |
2022 | — | $399,260 | $300,000 | $269,003 |

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. Ratings from GreatSchools.org.
20% ($460K)
Adjustable assumption - not a lending recommendation.
$2,299,000
Luxury property intelligence
A sourced read on Appaloosa Run pricing, timing, and property scale. No automated valuation claim.
List price
$2,299,000
Price per sqft
$652/sqft
Vs. Neighborhood guide reference price
Not available
Days on market
94 days
Original to current
$191K reduction
$2.5M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Sep 4, 2026.
Request Private Market AnalysisZIP-level neighborhoods, schools, lifestyle, and Austin market context
District guide, nearby schools, and homes by attendance area
Private Austin CMA, TCAD context, and pricing strategy
Pricing, prep, launch timing, and Compass marketing strategy
#1 ABOR Team 2024 with $1B+ career sales volume
The most recent annual property tax for 12104 Trailmaster DR is $5,711. 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 12104 Trailmaster DR. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.
As of Sep 4, 2026, 12104 Trailmaster DR is offered at $2,299,000. The current MLS snapshot shows 103 active listings in 78737. Keenan Group has completed 16 verified transactions in 78737 within its 1,000+ completed transactions and $1B+ career volume across Austin.
The MLS listing reports HOA or association dues of $25 annual for 12104 Trailmaster DR. It does not establish included amenities, services, rules, reserves, or current assessments; verify those items in current association documents.
Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.
Car-Dependent
N/A
Somewhat Bikeable
Walk Score measures walkability based on distance to amenities. Transit Score measures public transportation access. Bike Score measures bikeability based on bike infrastructure and terrain.
10 events on record
Current Price
$2,299,000
Timeline data compiled from MLS records and public records. Information deemed reliable but not guaranteed.
| Year | Taxes | Total Assessment | Land | Additions |
|---|---|---|---|---|
2025-12.0% | — | $519,206 | — | — |
2024+3.6% | — | $589,697 | $300,000 | $216,834 |
2023+42.5% | — | $569,003 | $300,000 | $289,697 |
2022 | — | $399,260 | $300,000 | $269,003 |
Timeline merges MLS activity (when permitted) with public records. Some details may be restricted to registered VOW clients.
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