| George Arnold Alexander III, MPA |
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San Marcos September Market Recap and Outlook
By George Arnold Alexander III, MPA · Associate Broker · 2026-10-29
Deal of the Week

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
Key figures · San Marcos · September 2026
- 51 homes sold in San Marcos in September 2026 (down 25.0% on a year earlier).
- Median sale price: $335,000 (up 0.1% on a year earlier).
- Median price per square foot: $183.
- Median days on market: 75.
- Median sale price as a share of the original list price: 90.4%.
- 395 homes for sale now, about 6.0 months of supply at the pace of the last six months.
Source: Unlock MLS, September 2026. Homes only (single-family, condo, townhome). Information deemed reliable but not guaranteed.
San Marcos saw median home prices climb to $335,000 in September, a 7.2% increase from August across 51 closed sales. This marks the highest monthly price point since early 2025, even as the number of homes sold dropped 17.7% compared to the prior month. The market remains active with new listings rising to 77, though total sales volume remains below the 68 transactions recorded in September 2025.
ALEX Intelligence analyzed the full year of data to identify seasonal patterns and current trends. Homes spent an average of 75 days on the market, up 17.2% from August but still slightly higher than the 72 days seen last year. Buyers negotiated a median close-to-original list ratio of 90.4%, with 92.2% of sales closing below the original asking price.
Inventory levels stand at 5.95 months, indicating a balanced market where supply and demand are relatively stable. The median home size grew to 1,929 square feet, reflecting a 3.8% increase in living area compared to August. While new construction accounted for nearly half of the closed sales with 24 units, the overall pace of transactions suggests buyers are becoming more selective as mortgage rates hold near 7.32%.
Looking ahead, the data shows price resilience despite lower transaction volume. The median price per square foot rose to $183, up 5.8% from August, signaling continued value in the current inventory. With 395 active listings and a steady flow of new supply, the market appears poised for gradual stabilization rather than rapid shifts in either direction.
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
Source data: Unlock MLS closed sales, September 2026, n=51
Cover photo: San Marcos River by Larry D. Moore, CC BY 4.0, via Wikimedia Commons; darkened, cropped and text added.
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, Partner, ALEX Companies · Associate Broker · #574878-B
Texas Real Estate Commission Information About Brokerage Services · TREC Consumer Protection Notice · trec.texas.gov
Diane Hart Alexander, Chair & CEO, ALEX Companies · Designated Broker · #574877-B · George Arnold Alexander III, Partner, ALEX Companies · Associate Broker · #574878-B
Texas Real Estate Commission Information About Brokerage Services · TREC Consumer Protection Notice · trec.texas.gov










