VCONST08220 - Zero-rating the 鈥榓pproved alteration鈥� of a 鈥榩rotected building鈥�: is the work to a 鈥榩rotected building鈥�: identifying the building
Group 6 of Schedule 8 refers to a 鈥榩rotected building鈥� in the singular (but check VCONST08240 for garages). To qualify for zero-rating, the works in question must be to that building.