The biggest variable that drives raw land values on Williams Drive is utilities. Specifically sewer. If the site has Williams Drive road frontage and City sewer service it should easily be worth anywhere from $12.00-$17.00 per sf. Many of the parcels located between Booty's Road/Lakeway and DB Wood Road do not have City sewer service and the owner/developer will have to extend sewer service to their property which can easily cost anywhere from $100,000-$300,000 or more depending on the location of the tract and the sewer capacity needed. Water can be served either by the city or Chisholm Trail depending on location. Electric will be either City or PEC. If the property does not have sewer on site the $4.30/sf quoted on the previous answer may be in the ballpark. A lot of it will also depend on proximity to existing businesses and major intersections. Hope this helps you.
From I35 west to DB Wood/Shell Rd. on Williams Drive, for commercially zoned property, the average cost of land is $4.30/sf and the average cost of improvements is $105/sf. Again, these figures are only averages and will vary according to the type of property (office condo vs converted house), its accessibility, and its location (hard corner, shopping center, etc).