Alexander House is a late 1980’s office building occupying the north-western end of the block bounded by Hatton, Frampton, Penfold and Boscobel Streets, between the Edgware Road and Lisson Grove within the Church Ward of the London Borough of Westminster. The building rises from the back of pavement line on four levels (G,1,2,3) with a lift, stair core and main entrance on Frampton Street and a service yard off Penfold Street.
Alterations made to facades of existing building, erection of extensions to rear and ground, first and second floors, removal of existing roof storey at third floor level and replacement with sheer storey and erection of new recessed roof storey at fourth floor level. Use of Class B1 office at ground, first and second floor levels and 9 No flats (3 x 1 bed, 3 x 2 bed, 3 x 3 bed and 1 x 4 bed) at third floor levels. Provision of 6 car parking spaces accessed from Penfold Street.