INSTITUTE OF BRITISH ARCHITECTS (ROYAL), 16, LOWER GROSVENOR STREET, GROSVENOR SQUARE. Founded 1834 for the advancement of architecture, and incorporated by royal charter, Jan. 11th, 1837. There are three classes of members: - 1. Fellows: architects engaged as principals for at least seven years in the practice of civil architecture. 2. Associates: persons engaged in the study of civil architecture, or in practice less than seven years, and who have attained the age of twenty-one. 3. Honorary Fellows. The meetings are held every alternate Monday at 8 p.m., from the first Monday in November till the end of June inclusive. Associate's admission fee, 1 guinea; Fellow's admission fee, 5 guineas. There is a good library of books on architecture.

Peter Cunningham, Hand-Book of London, 1850

ROYAL INSTITUTE OF BRITISH ARCHITECTS, 9 Conduit Street, Hanover Square, was established in 1834, incorporated in 1837, for the general advancement of civil architecture, and for promoting and facilitating the acquirement of the knowledge of the various arts and sciences connected therewith. Fellows (F.R.I.B.A.), who must be architects of seven years' standing, and pay an entrance fee of 51. Ss. and an annual subscription of 41. 4s.; Associates, who have been in practice for a shorter term, and pay an entrance fee of 1l. 1s., and an annual subscription of 2l. 2s.; honorary Members and honorary Fellows. The Library is full and comprehensive, but professional in character. Meetings are held on alternate Mondays, at 8 p.m., from November to June.

Cruchley's London in 1865 : A Handbook for Strangers, 1865