The mill had four double patent sails, and the Kentish-style cap is winded by a fantail.

[2] Baker Street Mill has an octagonal two-storey brick base, the walls of which are almost 3 feet (914 mm) thick at ground level.

The mill is 11 feet (3.35 m) diameter at the curb, the cant posts being about 10 inches (254 mm) square.

[3] Baker Street Mill has a cast-iron windshaft and four double patent sails.

[3] The wooden brake wheel is of clasp arm construction, 8 feet (2.44 m) diameter.