Near the town square, SH 205 runs along a pair of one-way streets with northbound traffic traveling on Goliad Street and southbound on Alamo Road, intersecting SH 66 in downtown.

Heading towards the north, the highway continues to a junction with FM 552 before leaving Rockwall.

This route was designated on May 15, 1934, from Terrell to Rockwall,[2] and was extended north to Lavon on September 1, 1939.

[3] The route has been under heavy construction since 2006 as part of a new expansion and widening project, and was scheduled to be completed in 2011.

Planning for a bypass around Rockwall began in the early 2000s and opened to traffic on August 3, 2012.