If your homebuyers or sellers asked you which home improvements would get them the best return on their investment, would you recommend a bathroom addition or a new deck? What about a new garage or a major kitchen remodel?

Remodeling magazine's 2012-2013 Cost vs. Value Report offers the latest figures on what kinds of upgrades or additions offer the best return. In the West South Central region—composed of Texas, Oklahoma, Louisiana, and Arkansas—a steel entry door replacement has the highest return for a midrange project with 83.8% of its cost being recouped. According to the report, the upscale project with the highest percent recouped is new siding, followed closely by replacing the garage door.

Which project has the lowest return? A sunroom addition will only provide a 50.9% return, but still higher than the 2013 national average of 46.5%. And with only 57.6% of its cost recouped, a master suite addition has the lowest return for a large-scale project.