Paragraph 3 Altered hereditament: base liability for 2010-11
The base liability for the relevant year beginning in 2010 for an altered hereditament shall be found by applying the formula Y x Z, where—
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Y is the amount mentioned in sub-paragraph (2), and
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Z is the small business non-domestic rating multiplier for the financial year beginning in 2009.
The amount referred to in sub-paragraph (1) is the amount certified by the appropriate valuation officer as the rateable value which would have been shown for the hereditament for 31st March 2010 in the list on the assumption that—
the hereditament had come into existence on 31st March 2010; and
the matters referred to in paragraph 2(7) of Schedule 6 to the Act as respects the hereditament were as they were assumed to be on the day on which it was shown for the first time in a local list as mentioned in paragraph 2(b) of this Schedule.