The Historic Houses Association lists 21 Yateley Road, Edgbaston, Birmingham as being of special architectural interest. Tours of the house can be pre-booked for certain dates. Not sure whether you have to be a member of Historic Houses. See link below:
The architect of 21 Yateley Road, H.T. Buckland, was born in Barmouth, Wales and educated at King Edward's School, Birmingham and the school of architecture at Birmingham School of Art.