|Location Map ( geo)|
|Distance:||2.3 miles (3.7 km)|
|Met (1923):||A544, A544|
|Now part of:||A546|
|Route outline (key)|
Originally the road started in Llanrhos and headed west along Bryn Lupus Road then south along Deganwy Road to Deganwy. It followed the railway line along the edge of the Conwy Estuary through town, to end in Tywyn on the same number road it started on.
By 1932 the northernmost section had been declassified. A new road had been built north from Deganwy which crossed the railway line to pass the West Shore at Llandudno, before turning east to end at the northern end of the A544 in the centre of town.
In 1935 the entire of the new route of the B5114 was upgraded to Class I status. It became the A496 and kept this number for many years but is now the A546. The road's original northern end to Llanrhos is still unclassified.