The RIBA's British Architectural Library is, in effect, the national collection for architecture, other parts of which are at RIBA in Portland Place.
The materials housed at the V&A include architectural drawings, written documents, models, drawing instruments, portraits, medals, furniture and objects associated with architects.
These archives are open to the public as a source for research, but access is by pre-booked appointment only. See the website for further details.
The archives are located next to The V&A + RIBA Architecture Gallery, a permanent exhibition encompassing artefacts that span 2,500 years of architecture from across the world.