The Rates (Amendment) (Northern Ireland) Order 2006
art. 4
art. 1(3)
SCHEDULES
SCHEDULE 11PROPERTIES NOT TO BE TREATED AS HEREDITAMENTS
2
Any structural feature of, or alterations or improvements to, a hereditament (not being the addition of any such room or other part as mentioned in paragraph (1)) made solely for the purpose of affording air-raid protection.