| George Arnold Alexander III, MPA |
| Partner, ALEX Companies |
| Associate Broker, Alexander Tiffany Southwest, LLC |
| Licensed Broker in TX, CO, NC, AL |
| [email protected] · +1 713.918.9951 |
| TREC Information About Brokerage Services · TREC Consumer Protection Notice |
San Marcos Market Heat Score: Cooling in October
By George Arnold Alexander III, MPA · Associate Broker · 2026-11-10
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 $255,000
345 Trinity River HOLW, San Marcos TX 78666 · MLS #6851093
Listed at $181,499, 4 bed, 2 bath, 1,500 sq ft. Listed 11% below the ALEX valuation; 6% under the local price per sq ft; price reduced 13% from original.
See it on alex.realestate: https://www.alex.realestate/listing-detail/1187649563/345-Trinity-River-HOLW-San-Marcos-TX
Lower-middle quartile: $255,000 to $311,000
820 Cardenas ST, San Marcos TX 78666 · MLS #8263574
Listed at $269,210, 3 bed, 2 bath, 1,644 sq ft. Listed 8% below the ALEX valuation; 9% under the local price per sq ft; price reduced 13% from original.
See it on alex.realestate: https://www.alex.realestate/listing-detail/1187918421/820-Cardenas-ST-San-Marcos-TX
Upper-middle quartile: $311,000 to $425,000
155 Little Prairie VLY, San Marcos TX 78666 · MLS #3302806
Listed at $333,999, 5 bed, 4 bath, 2,958 sq ft. Listed 2% below the ALEX valuation; 12% under the local price per sq ft; price reduced 9% from original.
See it on alex.realestate: https://www.alex.realestate/listing-detail/1186949327/155-Little-Prairie-VLY-San-Marcos-TX
Upper quartile: $425,000 and up
326 Singing Sumac WAY, San Marcos TX 78666 · MLS #4037342
Listed at $699,500, 4 bed, 3.5 bath, 2,545 sq ft. Listed 13% below the ALEX valuation; price reduced 15% from original.
See it on alex.realestate: https://www.alex.realestate/listing-detail/1180765804/326-Singing-Sumac-WAY-San-Marcos-TX
Key figures · San Marcos 78666 · October 2026
- 48 homes sold in San Marcos 78666 in October 2026 (down 11.1% on a year earlier).
- Median net sale price: $262,034 (down 22.0% on a year earlier).
- Median price per square foot: $176.
- Median days on market: 84.
- Median sale price as a share of the original list price: 90.6%.
- 379 homes for sale now, about 5.8 months of supply at the pace of the last six months.
Source: Unlock MLS, October 2026. Single-family homes; prices net of seller-paid concessions, the same figures as the ALEX market statistics pages. Information deemed reliable but not guaranteed.
What does a median price drop of 21.5% in one month mean for San Marcos? The ALEX Intelligence Market Heat Score, a composite index weighing days on market, sale-to-list ratio, inventory levels, and price cuts, indicates a significant cooling trend for October 2026.
The score reflects a shift from a balanced pace to a slower market. Median days on market rose 15.1% to 84 days across 48 closed sales, while the median close-to-original list ratio dipped slightly to 90.6%. With 379 active listings and 48 closings in the month, the market now holds 5.83 months of inventory, a level that favors buyers over sellers.
This composite view combines four key indicators: speed of sale, price negotiation strength, supply availability, and listing price reductions. The sharp decline in median price to $262,034 from $334,000 the prior month drove much of this shift. While 91.5% of homes sold below their original list price, the rate of reduction remained stable compared to last year.
The ALEX Intelligence estimate suggests that buyers in San Marcos currently have more leverage than they did a year ago, as properties linger longer and sell for less relative to asking prices. This data-driven score provides a clear snapshot of current market conditions without relying on subjective sentiment.
Want to see this home? Call or text George at 713.918.9951 for a private 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, October 2026, n=48
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










