The reference library contains an extensive range of books and periodicals relating to Irish architecture, architects, building and construction, local history, art, archaeology and general reference. Also included are an important collection of rare and early printed architectural treatises and texts, a substantial collection of pamphlets and ephemeral publications, and extensive press cutting files on Irish buildings and architects.

The Archive’s library is a reference library only. No material may be borrowed. Restrictions on photocopying reference library material are enforced on copyright and conservation grounds.