PPS 12 Housing in Settlements·Page 23·65
Windfall Allowance Assessment Method
The windfall allowance scale varies by area and should be justified by examining past windfall trends and estimating future potential, with justification documented in supporting technical documents.
The scale of the allowance for windfall housing will vary from area to area and may depend on the approach taken in the urban capacity study. Allowance can be made on the basis of examining past trends in windfalls coming forward for development and estimating likely future windfall potential. The justification of the windfall allowance should be included in the technical documents supporting the development plan.
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