$450,000 Multifamily development opportunity at 734 Valley Street in San Marcos. Zoned MF-24 (Multi-Family Residential), this property offers strong potential for a new multifamily project in a convenient, established location. Site plans are available for review. 2690552 MLS Multifamily development opportunity at 734 Valley Street in San Marcos. Zoned MF-24 (Multi-Family Residential), this property offers strong potential for a new multifamily project in a convenient, established location. Site plans are available for review. 734 Valley St, San Marcos Listing courtesy of Keller Williams - Lake Travis. Contact: (512) 784-2345