He moved to London at nineteen to work in the studios of first Leonard Stokes and then Arts and Crafts pioneer Philip Webb.
[3] His work spanned more than forty British counties and more than 300 buildings, including scores of small town and country churches.
He collaborated with many of the leading figures of the Arts and Crafts Movement such as William Morris, Ernest Gimson, Norman Jewson and Detmar Blow.
Weir's work at Dartington Hall, near Totnes, Devon consisted of the restoration of seriously depressed manor house buildings of about 1388.
The buildings consist of the three storey west range of the courtyard, where he removed external stairways to the upper floors and internalised all the vertical circulation.