$774,000
House228 Deertrail, San Marcos, TX
Listings presented by Erik Applegate, REALTOR®Rudder Realty








140 Gustav Ln, San Marcos, TX 78666
Why Koti picked this home
Custom-built 5-bedroom home in San Marcos features smart technology, a private yard, and an expansive open floorplan.
Luxury Meets Country Living in San Marcos! Welcome to 140 Gustav Ln, a stunning custom-built home offering the perfect blend of upscale finishes, modern technology, and peaceful Texas living. Situated on a spacious 1-acre lot, this beautifully appointed 5-bedroom, 3-bathroom home also features a dedicated office, providing flexibility for it all! Step inside to discover an impressive open-concept layout filled with natural light, soaring 10-foot ceilings, 8-foot doors, designer finishes, and a striking floor-to-ceiling wood-burning fireplace anchoring the expansive living room. The chef-inspired kitchen is the heart of the home, showcasing Level 6 Calacatta quartz countertops, custom soft-close cabinetry, premium stainless steel appliances, smart double ovens, induction cooktop, pot filler, oversized pantry, large center island, and a custom vent hood with designer backsplash. The private primary suite offers a luxurious retreat with tray ceilings and a spa-inspired bath featuring dual vanities, an oversized walk-in shower with dual shower heads, rain shower, bench seating, and a spacious custom walk-in closet. Built with comfort and efficiency in mind, this Energy Star-certified smart home includes spray foam insulation, an 18 SEER two-stage HVAC system, smart home technology package, built-in speakers, security system, pre-wired camera system, water softener, sprinkler system, and backup generator connection. Enjoy seamless indoor-outdoor living with oversized picture windows overlooking the backyard and a covered patio featuring vaulted wood ceilings, built-in speaker zones, and space pre-plumbed for an outdoor kitchen. The fully fenced property offers a 3-car side-entry garage, detached shop/garage with 220V service, seamless gutters, and extensive irrigation. A rare combination of luxury finishes, advanced technology, energy efficiency, and wide-open space, this exceptional property offers what you've been searching for while located near San Marcos!

IDX data provided by Unlock MLS, distributed via MLS GRID.Listing courtesy of Christopher Marti, Keller Williams City-View.
IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This data is deemed reliable but is not guaranteed by MLS GRID. Based on information submitted to the MLS GRID as of Sep 6, 2026, 9:01 AM UTC. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Listing agent (MLS attribution)
Christopher Marti
Keller Williams City-View
Listed— $849,990
Jun 9, 2026
Price reduced— $834,990
Previously $849,990
Oct 12, 2026 (approximate)
Price reduced— $824,990
Previously $834,990
Sep 5, 2026
Price history reflects changes Koti has observed through its MLS data feed and may not capture every change to this listing. Dates marked "approximate" reflect when Koti first recorded the value, not necessarily when the change actually occurred.