Information on historic buildings

Historic buildings will usually have evolved over time as fashions changed or as the need arose for additional accommodation. Understanding the different stages in a building’s development can help to explain why problems might occur, such as cracking at the joint between old and new parts of a building.

Old photographs, maps and documents can all provide useful information about the development of a building, and local archives as well as national collections may prove useful avenues for research.

Royal Commission on the Ancient and Historical Monuments of Wales

The Royal Commission on the Ancient and Historical Monuments of Wales (RCAHMW) coordinates records for the historic environment and makes available Cadw’s information about places of special historic significance on the internet via the Historic Wales Portal. It also maintains the national archive for the historic environment, the National Monuments Record for Wales, which can be consulted online at or through a free enquiry service and public reading room. For further information see the commission's website or contact:

Plas Crug
Aberystwyth SY23 1NJ

Tel 01970 621200
Fax 01970 627701


The National Library of Wales

The National Library of Wales holds a vast array of different materials within our collections, from books, periodicals and newspapers to manuscripts, maps, photographs, paintings, archives, films, CDs and electronic resources. The library has made extensive resources available online, and other materials may be consulted in its reading rooms.  For further information, see the library's website or contact:

The National Library of Wales
SY23 3BU

Tel 01970 632 800
Fax 01970 615 709

Archives Wales

The country record offices and other archives of Wales are treasure houses of historical information. The Archives Wales website is an online catalogue that allows you with a single search to obtain information about more than 7,000 collections of historical records in the holdings of 21 archives in Wales. These archives are open to the public and you can use this site to plan your visit and find out more. Archives Wales forms part of the UK's National Archives Network.