Architect for underground retention plan

Houston TX

Description

I need to hire a architect to draw up a SITE PLAN with a underground retention plan or refer me to someone that does I greatly appreciate it. Im putting up a 60x40 Pre fab building this summer on my lot for a Tire Shop,which is about 10,000 sq ft. Per city of Houston I need to have a retention plan amongst other things,but not enough room above ground so I need a underground retention plan. My City of Houston project number is 15027266 to see notes.Thx