San Marcos September Market Recap and Outlook

Deal of the Week

340 Navidad River DR, San Marcos TX 78666
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 $256,000 340 Navidad River DR, San Marcos TX 78666 · MLS #4925570 Listed at $172,999, 3 bed, 2 bath, 1,380 sq ft. Listed 12% below the ALEX valuation; price reduced 14% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1184684834/340-Navidad-River-DR-San-Marcos-TX Lower-middle quartile: $256,000 to $320,000 105 El Mirage RD, San Marcos TX 78666 · MLS #2500731 Listed at $265,999, 4 bed, 2 bath, 2,014 sq ft. Listed 11% below the ALEX valuation; price reduced 18% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1182553068/105-El-Mirage-RD-San-Marcos-TX Upper-middle quartile: $320,000 to $440,000 1013-1015 Sagewood TRL # 1015, San Marcos TX 78666 · MLS #7565068 Listed at $420,000, 3 bed, 2.5 bath, 3,192 sq ft. Listed 6% below the ALEX valuation; 27% under the local price per sq ft; price reduced 15% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1185800507/1013-1015-Sagewood-TRL-1013-1015-San-Marcos-TX Upper quartile: $440,000 and up 328 Bundleflower WAY, San Marcos TX 78666 · MLS #7464017 Listed at $474,900, 4 bed, 3 bath, 2,529 sq ft. Listed 6% below the ALEX valuation; 5% under the local price per sq ft; price reduced 19% from original. See it on alex.realestate: https://www.alex.realestate/listing-detail/1186060641/328-Bundleflower-WAY-San-Marcos-TX

Key figures · San Marcos · September 2026

Source: Unlock MLS, September 2026. Homes only (single-family, condo, townhome). Information deemed reliable but not guaranteed.

All San Marcos market figures and ALEX agents

San Marcos saw a notable shift in September as the median sale price climbed to $342,500, up 9.1% from August and 2.4% higher than September 2025. This increase occurred across 50 closed sales, with the typical home size growing slightly to 1,926 square feet. While prices strengthened, homes took longer to sell, with the median days on market rising to 74 days, a 15.6% increase from the prior month and 2.8% higher than last year. The pace of sales slowed compared to the previous month, dropping from 61 closings in August to 50 in September. However, this volume remains comparable to the 51 homes sold in September 2025. Buyers continued to negotiate below asking prices, with 92% of transactions closing under the original list price, a slight uptick from the prior month. The average home sold for 90.6% of its original list price, down slightly from the previous period. Inventory levels remain steady with 410 active listings and an estimated 6.2 months of supply, indicating a balanced market where neither buyers nor sellers hold a distinct advantage. New construction activity accounted for nearly half of all closings, with 23 new homes sold in the month. As we move into October, the data suggests a market that is stabilizing after a summer slowdown, with prices holding firm despite longer selling times and reduced sales volume. Want a closer look? Reply or call George at 713.918.9951 and we'll set up a showing. Data from Unlock MLS. Information deemed reliable but not guaranteed. Model outputs are ALEX Intelligence estimates, not appraisals. Read more Central Texas market data on the ALEX blog: https://alex-companies.com/blog MIT, Nvidia, Google & IBM-Trained. Cross Domain-Expert: Quantum, AI, Ethics, Sovereignty, Intelligence, Philanthropy. Solepoint Planning. VUI AI Cloud Architect. AI Certifications Development. Quant/AI Instructor. Castor Venture Club Member. Associate Broker. George Arnold Alexander III, MPA Director, ALEX Companies Associate Broker, Alexander Tiffany Southwest, LLC dba ALEX.realestate, et.al. Texas License #574878-B · Broker License #565194-BB Broker, ALEX Real Estate · North Carolina License #367733 Independent Broker, ALEX Real Estate · Colorado License #II.100112456 [email protected] · +1 713.918.9951
Source data: Unlock MLS closed sales, September 2026, n=50
Cover photo: San Marcos River by Larry D. Moore, CC BY 4.0, via Wikimedia Commons; darkened, cropped and text added.
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Licensed by the Texas Real Estate Commission. Broker: Alexander Tiffany Southwest, LLC · License #565194-BB.
Diane Hart Alexander, Chair & CEO, ALEX Companies · Designated Broker · #574877-B  ·  George Arnold Alexander III, Director, ALEX Companies · Associate Broker · #574878-B
Texas Real Estate Commission Information About Brokerage Services · TREC Consumer Protection Notice · trec.texas.gov