In the following decades large expansion projects resulted in the creation of the new "Ortsteil" (suburb) "Hohenstange", north-east of the old village core, more than doubling Tamm's population (11,500 in 1990). This feat was possible mainly due to Tamm's very attractive position in direct proximity to both the Autobahn "A81" and the railway line between Stuttgart and Heilbronn. Continuing popularity led to another building phase in the early 21st century, finally connecting the old village ("Ortsmitte") with the "Hohenstange" borough, which had formerly been divided by a stretch of farmland.