An area encompassing Bridge Street, from its junction with Newmarket Street up to and including the area around the junction with Castle Parade and Porthycarne Street.

An area encompassing properties along both sides of the High Street in Cymmer between the junctions with Brook Street and Glynfach Road.

The length of the A483 from the roundabout junction of A483 with A476 Ffairfach north along Towy Terrace across Llandeilo Bridge into Bridge St then Rhosmaen St through the town centre until the roundabout junction of the A483 with the A40T.