REMOVE

1. Building extensions
2. SMITH, Sidney R.J.

WHAT

1. Architecture -- 1800-1900 (8)
2. Architecture -- 1900-2000 (8)
3. Architecture -- England - … (8)
4. Art museums -- England -- … (8)

WHERE

1. ENGLAND, UK (8)
2. London (8)

WHO

1. STIRLING, James Frazer (8)
2. LLEWELYN-DAVIES, Richard (2)
3. ROMAINE-WALKER, W.H. (2)

WHEN

1. 1987 (8)