 At an unspecified later date, the adjoining house was added, using parts of the original manor.The woollen industry was central to the medieval economy of the Cotswolds, and in 1336, according to former R A Lister and Company employee A S Bullock, 5000 Cotswold sheep were shorn in the courtyard of Beverston Castle, which he thought might have been a record.The castle was remodelled in 1348–1349, the second phase of a renovation that began in the 1330s.