TMC Planning, managing your planning application...Local Authority Plans Designed, Drawn, Submitted and Managed through the Planning Permission Process in Sunderland, Newcastle, Gateshead, Durham, Teesside and Northumberland, and all surrounding areasTMC Planning, Plans, Planning Permission, extensions. TMC Planning is located in the Sunderland area of Sunderland. There are at least 2 other listings in the SR3 postcode area. Architectural Services in Sunderland SR3