
This recently completed mid-century modern inspired home blends architectural design with natural beauty. Built in 2024, the home captures panoramic Hill Country views through angled glass walls and floor-to-ceiling windows, creating a seamless connection to the outdoors. With thoughtful details, smart technology, and spaces designed for both connection and retreat, every element was intentionally crafted. Inside, warm white oak accents and custom cabinetry anchor the open living areas. The kitchen includes built-in banquette seating, a bar with an ice maker and beverage fridge, and large sliders that open to the gorgeous landscape and views. Under-cabinet lighting, unique window placements, and a flowing layout bring light and function to every corner. Upstairs, a kitchenette with a sink, microwave, dishwasher, and fridge drawers offers additional convenience for guests or family. Outside, extensive professional landscaping complements the natural setting, with wooded walking areas, wet-weather creeks, and raised steel bed gardens adding to the sense of space and privacy. Properties like this don't come along often. Offered alongside 475 Happy Trail.
Property Type
Residential
Year Built
2024
Lot Size
7.78 acres
$/Sq Ft
$776
Garage
6 spaces
Listed by Compass RE Texas, LLC
Verified property facts
503 Happy TRL is listed at $2,950,000 with 4 bedrooms, 5 full, 1 half bathrooms, 3,800 square feet, 7.78-acre lot. This places it above the 78620 median of $867,000.
503 Happy TRL is zoned for Johnson City ISD with assigned schools: Lyndon B Johnson (elementary), Lyndon B Johnson (middle), Lyndon B Johnson (Johnson City ISD) (high). School assignments should be verified directly with the district.
503 Happy TRL is a Residential built in 2024 featuring 4 bedrooms, 5 full, 1 half bathrooms, 3,800 square feet, 7.78-acre lot.
503 Happy TRL 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 503 Happy TRL is $23,761. 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
Property Details
Features
Appliances
Flooring
Features
Construction
Lot Features
Fencing
Foundation
Patio / Porch
Parking
Waterfront
Listed with current price, original ask, and market time.

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% ($590K)
$2,950,000
Luxury property intelligence
A sourced read on K-Bar-Mac pricing, timing, and property scale. No automated valuation claim.
List price
$2,950,000
Price per sqft
$776/sqft
Vs. K-Bar-Mac median
Not available
Days on market
42 days
Original to current
No verified reduction
$3M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Jun 22, 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
With 20% down ($590,000) on a 30-year fixed mortgage at approximately 6.75%, the estimated monthly payment for 503 Happy TRL is around $17,287 including principal, interest, and estimated taxes. Actual payment varies by rate, down payment, insurance, and HOA fees.
At $2,950,000, 503 Happy TRL is in the K-Bar-Mac market where there are currently 248 active listings in 78620. The Keenan Group has completed 11 transactions in 78620 as part of 1,000+ career sales totaling $1B+ across Austin.
503 Happy TRL includes verified waterfront access: None. Buyers should confirm shoreline, dock rights, and floodplain status during due diligence.
503 Happy TRL sits on a 7.78-acre lot, providing substantial outdoor living space. Properties of this scale in Austin's luxury market typically feature pool areas, outdoor kitchens, and mature landscaping. Confirm specific amenities with the listing agent.
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
$2,950,000
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.
Best Match
Balanced against price, location, and layout so nearby lookalikes rise first. Similar properties in K-Bar-Mac
Recent sales for market context