Commentary on Sections Glossary Background
943.The broad theme underlying the legislation is to give relief for capital expenditure on a new building provided that the building is used in particular ways – mainly for manufacturing or processing.
944.There are significant differences from the provisions for plant and machinery allowances in Part 2 of this Act. For example:
	there is normally a single amount of qualifying expenditure, allowances on which may be shared between successive “owners” of the building;
	expenditure is not “pooled” for the purposes of working out allowances and charges;
	writing-down allowances are made on what is generally known as a “straight line” basis. See paragraph 27 above; and
	balancing adjustments are not normally made more than 25 years after the first use of the building.