The B5099 is a short link road on the western edge of Wrexham.
The road starts in the shadow of the A483 Wrexham western bypass at the B5098 TOTSO by the Berham Heritage Centre and heads east, reaching traffic calming almost immediately. As we pass through the village of Berham there are many such chicanes on this road but eventually an NSL sign is met and the road enters open country.
A few hundred yards further on and the B5099 reaches the outskirts of Wrexham, with a 30 limit and a sign warning of speed humps for a distance equating to the rest of the road, although there are more chicanes as well. There is a sharp bend on either side of a bridge over the Shrewsbury to Chester railway line before the road skirts the cemetery.
The B5099 ends at a crossroads on the A5152 (former B5100) on the southwest side of the town centre. The road ahead is an unclassified residential road.