San Marcos Housing Market: September 2026

Deals of the Week by price quartile. The quartiles come from the last 12 months of closed sales here. Each pick has the top ALEX deal score in its price range. Lower quartile: under $256,000 337 Trinity River HOLW, San Marcos TX 78666 · MLS #1966025 Listed at $178,999, 4 bed, 2 bath, 1,500 sq ft. Listed 10% below the ALEX valuation; 7% under the local price per sq ft; price reduced 14% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1187649556/337-Trinity-River-HOLW-San-Marcos-TX Lower-middle quartile: $256,000 to $320,000 129 Little Prairie VLY, San Marcos TX 78666 · MLS #7030655 Listed at $298,499, 4 bed, 3 bath, 2,669 sq ft. Listed 10% below the ALEX valuation; 13% under the local price per sq ft; price reduced 14% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1184697010/129-Little-Prairie-VLY-San-Marcos-TX Upper-middle quartile: $320,000 to $440,000 123 Lions Tail CV, San Marcos TX 78666 · MLS #3883854 Listed at $328,935, 3 bed, 2.5 bath, 1,960 sq ft. Listed 8% below the ALEX valuation; 15% under the local price per sq ft; price reduced 21% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1187669084/123-Lions-Tail-CV-San-Marcos-TX Upper quartile: $440,000 and up 109 Possumhaw LN, San Marcos TX 78666 · MLS #1816646 Listed at $545,625, 4 bed, 3 bath, 3,050 sq ft. Listed 4% below the ALEX valuation; 9% under the local price per sq ft; price reduced 17% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1185026696/109-Possumhaw-LN-San-Marcos-TX