Western Australian Consolidated Acts Western Australian Consolidated Acts Within 35 days
after the completion of work which a building owner is by this Division
authorised or required to execute, and the expense of which is in whole or in
part to be borne by an adjoining owner, the building owner shall deliver to
the adjoining owner an account in writing of the particulars and expense of
the work, specifying deductions, if any, to which the adjoining owner is
entitled in respect of old materials, or in other respects, estimating and
valuing the work at fair average rates and prices, according to the nature of
the work and the locality and the market price of materials and labour at the
time.