PPS 4 Planning and Economic Development·Page 27·PED 3
Policy PED 3: Expansion of an Established Economic Development Use in the Countryside
Expansion of established economic development uses in the countryside is permitted where the scale and nature does not harm rural character, there is no major increase in site area, and proposals are normally accommodated through reuse or extension of existing buildings. New buildings may be approved only if reuse is not possible and they are proportionate and integrated.
The expansion of an established economic development use in the countryside will be permitted where the scale and nature of the proposal does not harm the rural character or appearance of the local area and there is no major increase in the site area of the enterprise.
Proposals for expansion will normally be expected to be accommodated through the reuse or extension of existing buildings on site. Where it is demonstrated that this is not possible, new buildings may be approved provided they are in proportion to the existing building(s) and will integrate as part of the overall development.
Any extension or new building should respect the scale, design and materials of the original building(s) on the site and any historic or architectural interest the original property may have.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 4 - Planning and Economic Development.pdf