3-5, Warstone Lane

3-5 Warstone Lane is a small manufactory built in the late 19th century, with some alterations made in the 20th century. The exterior features painted channelled and lined out stucco on brick, with truncated gable stacks and a slate roof. The building has an L-shaped layout, including an angled addition for the rear workshop.

The street-facing side has a three-bay design, consisting of two storeys and an attic. On the left, there is a doorway with a bracketed shallow hood and a boarded 20th-century door, along with a blocked overlight. To the right, there are three sash windows, each with two over two panes, also featuring bracketed hoods. The first-floor openings have 20th-century replacement joinery beneath stepped voussoired heads, and there are shallow attic openings with 20th-century multi-pane frames. The eaves are dentilled.

At the rear, a three-storey, three-bay workshop range extends from the east side, positioned at an acute angle to the main frontage. This building is listed for its group value with No. 7 Warstone Lane and No. 6 Warstone Lane. It represents a small late 19th-century manufactory with a surviving integral workshop range, contributing to a significant street frontage of similar buildings in Birmingham's manufacturing district, which is now recognized for its international importance. The unusual shape of the rear workshop reflects the pressures of development in the area during the late 19th century, when even small plots were utilized for workshop space.