In architecture a halpace is a raised floor in a bay-window, before a fire-place, or in similar situations. The floors in such places are often a step higher than the rest in old English houses. The term halpace is also given to the dais in a hall and also to a raised stage or platform, and a landing in a flight of stairs. Found on http://www.probertencyclopaedia.com/browse/TH.HTM