David Morgan's, best seen from the opposite side of the road was built in three sections. The northern part (1912) is of Portland stone with columns of black Larvikite from Norway. The middle part (1899) is white Portland Stone with red sandstone and Bath Stone and granite column to the first floor. The southern part (1904) is a grey Forest of Dean Stone with Bath Stone dressings. The porch is faced with a Roman travertine.

Mill Lane is the old route of the canal and was also the site of an open air market.

The Old Custom House, built using Bath Stone in 1780, was sited on the banks of the canal. This was an important hub within the city where imports and exports were controlled.

St Mary's Church

On the site of the Central Hotel was a ship yard, and just north of here was the site of the original St Mary's Church. The Taff originally ran along the west side of St Mary's Street and St Mary's church was sited on its banks.

St Mary's Church was founded at the beginning of the 12th century by the Benedictines of Tewkesbury Abbey. The monks had not chosen their site well - on a bend of the river Taff - and erosion was gradually removing the churchyard.

In 1607 there was a great flood across the levels around Cardiff and the foundations of St Mary's were weakened; the church went into a slow collapse. By 1620, St John's church was used for St Mary's services and in 1680 the tower collapsed.

The last service was held in 1701, in a roofless ruin, and St Mary's was abandoned. No trace remains today on the original site but the church was subsequently rebuilt on Bute Street, in 1846.