|From:||New Road (SN626225)|
|To:||Bridge Street (SN628223)|
|Length:||0.2 miles (0.3 km)|
|Met (1923):||A40, A474|
|Route outline (key)|
The original incarnation of the A4071 was a tiny link road in Llandeilo, east of Carmarthen, which ran between the then-A40 and A474 through the town along the western half of Carmarthen Street, George Street and King Street.
Later maps show the road straightened to use the full length of Carmarthen Street although it is unclear if the number A4071 still applied. Certainly the number was reused elsewhere in the 1960s and the road is now unclassified. The narrow King Street and George Street are now one-way heading towards Carmarthen Street.