Shepperton Studios:Partly shot on Stages A, L, R, S, T at Shepperton Studios
A Stage (Moriarty's Study, Interior Swiss Chalet, Auction Rooms, Ravache cellar), L Stage, R Stage (Exterior Auction Rooms, interior of Sims Area Club, interior Watson's Study), S Stage (interior Gypsy tent), T Stage. Foley was completed in Theatre 2 at Shepperton by Glen Gathard and Luke Brown.
Leavesden Studios:Exterior of 221B Baker Street constructed at Leavesden
Elstree Studios:221B Baker Street interior of Holmes's Apartment
Pinewood Studios:F Stage and the Paddock Tank were used.