Nine Thom’s maps of the city and environs of Dublin from the collection of the School of Geography, Planning and Environmental Policy (GPEP). Printed by the Ordnance Survey for the Dublin publisher Alexander Thom from the six-inch map sheets 18 and 22, and dating from the late 19th century. The maps have been annotated with hand written dates made by Dr. Arnold Horner, formerly of GPEP, and based on information in J.H. Andrew’s article "Medium and message in early six-inch Irish Ordnance Maps: the case of Dublin city". These loose maps were originally published in Thom’s annual Almanac and Official Directory.

Photographic data regarding 444 builings in Dublin, Ireland, comprising primarily multi-layer images in Adobe PhotoShop (PSD) format. The majority of images consist of one or more photographic images that have been manpulated to create a single ortorectified image of a structure; a structure may be represented by more than one PSD file, such that 516 images in total are included in the dataset.

Data regarding 449 builings in Dublin, Ireland, comprising tables of building characteristics and attributes and an assessment of building status by a range of criteria.