
5 bed, 5 bath, 6,088 sqft on 12.45 acres in Round Mountain. Round Mountain, TX 78663. $6,000,000. Johnson City ISD.
On top of the ridge at RanchesAt Big Mountain, Lot 16 is an under-construction Hill Country showcase estate positioned on 12.45 private acres with rare 360-degree views stretching toward Packsaddle Mountain, Lake LBJ, Marble Falls, and the surrounding Hill Country. Carefully positioned and designed to take full advantage of its ridge-top setting, the 6,088-square-foot residence is being built by Keith Wing for luxury ranch living and large-scale entertaining. The home features 5 bedrooms, 5 full baths, 1 half bath, expansive indoor-outdoor living, a resort-style pool, screened outdoor living area, game room, study, and loft. The homesite offers privacy, native landscape, and long-distance views from one of the community’s premier ridge-top settings. RanchesAt Big Mountain is a private gated luxury acreage community spanning approximately 401 acres with only 27 homesites, offering the space and privacy of ranch ownership with the ease of gated access, private roads, underground utilities, and a cohesive community setting. Wildlife is present throughout the ranch, including blackbuck, Arabian oryx, fallow deer, and native whitetail. Lot 16 is part of the RanchesAt Reserve Collection, a limited offering of available showcase homes selected for their visibility, setting, and role in shaping the community’s architectural tone.
The ridge-top elevation at 3531 RM-3347, Lot 16 in Round Mountain captures 360-degree views across the Hill Country that stretch from Packsaddle Mountain to Lake LBJ and the Marble Falls horizon. The 12.45-acre homesite sits in Round Mountain, a gated luxury community of just 27 homesites spanning 401 acres in Blanco County, where native landscape and wildlife roaming grounds define the setting. This newly constructed 6,088-square-foot residence reflects the precision of high-elevation Hill Country architecture, positioned to pull light and sight lines through every room.
The home opens directly to water-view living through screened outdoor areas and an expansive patio designed for the flow between interior and landscape. Morning breezes move across the property unobstructed by neighboring structures. The resort-style pool sits integrated into the private yard, where the slope of the land creates natural sight corridors down across the Hill Country. Quartz counters and built-in stainless steel appliances anchor the kitchen, while a study, game room, and loft provide flexibility for how residents actually use their space. The 5-bedroom, 5-full-bath layout includes a primary suite with dual walk-in closets, screened living areas with mosquito systems, and covered patios positioned to capture views at different times of day.
Johnson City ISD serves the property, with Lyndon B Johnson Elementary, Middle, and High School all within the district. The private maintained roads throughout Round Mountain connect to RM-3347, reducing traffic while maintaining direct access. The home was completed in 2026 and listed at $5.78M, or $950 per square foot, reflecting the premium for ridge-top positioning and the limited selection of new construction in this gated community.
Ownership here means the kind of privacy that comes from 12.45 acres and a community designed to preserve sight lines and distance between residences. Wildlife native to the Hill Country, including blackbuck, Arabian oryx, and fallow deer, move across the ranches. The screened outdoor living and gas grills accommodate large-scale entertaining while the home's orientation keeps the focus on the landscape and the views that define life at elevation in the Hill Country.
Verified property facts
3531 RM-3347 - Lot 16 is listed at $6,000,000 with 5 bedrooms, 5 full, 1 half bathrooms, 6,088 square feet, 12.45-acre lot. This places it above the ZIP 78663 single-family closed-sale median price of $1,490,000 (ZIP 78663 geography · single-family closed sales · median sale price · trailing 12 months as of Oct 2, 2026).
3531 RM-3347 - Lot 16 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.
3531 RM-3347 - Lot 16 is a Residential built in 2026 featuring 5 bedrooms, 5 full, 1 half bathrooms, 6,088 square feet, 12.45-acre lot.
3531 RM-3347 - Lot 16 is listed by Compass RE Texas, LLC. Keenan Group at Compass presents this IDX listing and provides the accompanying market analysis using MLS Grid / Unlock MLS data reviewed as of Oct 2, 2026.
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1 record on file
Every recorded listing, sale, and lease at 3531 RM-3347 - Lot 16, 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.

Johnson City 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% ($1.2M)
Adjustable assumption - not a lending recommendation.
$6,000,000
Luxury property intelligence
A sourced read on Round Mountain pricing, timing, and property scale. No automated valuation claim.
List price
$6,000,000
Price per sqft
$986/sqft
Vs. Neighborhood guide reference price
Not available
Days on market
137 days
Original to current
No verified reduction
$5.8M original
Active inventory context
Ask for current inventory
Source: MLS Grid / Unlock MLS and Keenan Group review as of Oct 2, 2026.
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This page does not assume a mortgage rate or publish a monthly payment for 3531 RM-3347 - Lot 16. A property-specific estimate requires a current lender rate, chosen down payment, taxes, insurance, and any verified association dues.
As of Oct 2, 2026, 3531 RM-3347 - Lot 16 is offered at $6,000,000. The current MLS snapshot shows 8 active listings in 78663.
The MLS listing reports HOA or association dues of $1,800 annual for 3531 RM-3347 - Lot 16. 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.
3 events on record
Current Price
$6,000,000
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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