Todays Irish Times has an article on creating increased floor space by excavating a basement. Allister Coyne of Ailtireacht, provides some insight in the the costs and design decisions involved. The photographs are from a where I  photographed the interior and exterior.

For the full article : http://www.irishtimes.com/life-and-style/homes-and-property/interiors/digging-deep-to-create-extra-space-1.1664399

For details on Ailtireacht: http://www.ailtir.net/