Complex sentence: It is located at 252 High Holborn in the Covent Garden neighbourhood of the West End and occupies a 1914 Belle Époque building designed by H Percy Monckton which was formerly the headquarters of the Pearl Assurance Company from 1914 to 1989.
Split into simpler sentences: It is located at 252 High Holborn in the Covent Garden neighbourhood of the West End. The property was formerly the headquarters of the Pearl Assurance Company from 1914 to 1989.