3424 S Old Bastrop Highway, San Marcos, TX 78666

This expansive 10+ acre property includes multiple residences and a workshop. House and rooms are labeled on top right of the pictures. ---- Main Home (3424 B): The primary residence features two living areas, a formal dining room, a breakfast nook, a sunroom, and a covered patio. Additional highlights include a spacious three-car garage, three bedrooms, two bathrooms, and an office/flex space. ---- House C (located directly behind the main home): This home offers a covered patio, a large living area, a shared kitchen and dining space with a small laundry space. It includes three bedrooms and two bathrooms. ---- House D (newest home, located on the far right side of the property): Designed with a welcoming foyer, this home opens into a centrally located living room. It also features a dining area, kitchen, laundry room with access to a two-car garage, and a covered patio. The layout includes three bedrooms, three full bathrooms, and one half bath. ---- Workshop: A versatile two-room workshop with its own covered patio. The asphalt slab has an RV connection with water, power and septic to support 2 RVs. ---- Property notes: Each home has it's own fiber internet line, and the back 8 acres are under AG exemption. ---- Appliances: Dishwasher, Free-Standing Gas Range, Gas Water Heater, Microwave, Stainless Steel Appliance(s) All appliances are electric. Water/Heating/AC is electric as well, with option to move to gas but not currently using gas, Interior Features: Crown Molding, Open Floorplan, Pantry, Workshop, Parking Features: Asphalt, Attached, View: Panoramic, Rural, Water Source: Public, Tax Rate: 1.52, Unit 1Furnished: Unfurnished, Unit 2Furnished: Unfurnished, Unit 3Furnished: Unfurnished

Three separate income-producing homes on 10.1713 acres of raw opportunity in San Marcos put this property in a rare category: genuine multi-family real estate that functions as a working ranch, an investment asset, and a personal retreat all at once. Located on South Old Bastrop Highway just outside San Marcos city limits, 3424 represents the kind of land-rich holding that becomes harder to find as Hays County develops northward toward Austin.

The main residence anchors the property with two living areas, formal dining, sunroom, and office space across three bedrooms and two bathrooms. A five-car garage and covered patio create practical living space without cramping the footprint. Behind it sits House C with its own full layout: three bedrooms, two baths, shared kitchen and dining, laundry, covered patio. The newest addition, House D, flips the script with three bedrooms, three full baths, plus a half bath, two-car garage, and separate laundry room. Each unit runs on dedicated fiber internet. The workshop handles RV storage with full hookups for two vehicles, power, water, and septic independently connected.

San Marcos ISD schools serve the property, with Rodriguez Elementary, Miller Middle, and San Marcos High School anchoring the district. The back eight acres qualify for agricultural exemption, a significant tax advantage that keeps operating costs down while you hold the land.

This location sits equidistant from multiple employment centers. Apple and Dell operations in Austin run roughly 30-35 minutes north depending on traffic patterns and your destination campus. The proximity to I-35 means quick access to both Austin and San Antonio. Downtown San Marcos sits about five minutes south with retail, restaurants, and the emerging tech scene around the university district.

The 7,065 square feet of constructed space across three homes prices out to $212 per square foot. At $1.50 million, you're capturing land value that most single-family purchases in the region simply cannot offer. Whether you operate this as a triplex generating monthly income, consolidate it for a family compound, or hold it for future development when Hays County zoning inevitably shifts, the economics of per-acre cost become the real story here.