I found this advert in the 'Streatham News' dated 28th August 1964:
“NOW OPEN! THE RECORD CENTRE (BALham 1699) 2, MITCHAM ROAD (Next door to Tooting Broadway Underground). THE BEST SELECTION OF RECORDS AND ACCESSORIES IN SOUTH LONDON! Come and browse around our modern showroom equipped with individual listening facilities and everything to make record buying a pleasure! ALL THE LATEST POPS IN STOCK TOGETHER WITH A GOOD SELECTION OF CLASSICAL AND POPULAR L.Ps. ALSO CONTINENTAL, AFRICAN AND WEST INDIAN MUSIC.”
… along with this piece on the same page:
“LONDON'S newest record centre, which has just opened in Tooting, claims to have about 8,000 records in stock and normally to be able to supply any difficult-to-get record within 24 hours. The Record Centre is in Mitcham Road, next to Tooting Broadway Underground station.” Dave Harwood (2024)