SPPS Strategic Planning Policy Statement Edition 2 (December 2025)·Page 100·6.290
Retail impact assessment threshold
Applications for retail or town centre developments exceeding 1000 square metres gross external area outside town centre locations must include a retail impact and need assessment, unless in accordance with the Local Development Plan. Planning authorities may set a lower threshold locally or up to 2500 square metres in the Local Development Plan.
All applications for retail or town centre type developments above a threshold of 1000 square metres gross external area which are not proposed in a town centre location and are not in accordance with the LDP should be required to undertake a full assessment of retail impact as well as need. This includes applications for an extension/s which would result in the overall development exceeding 1000 square metre gross external area. Where appropriate the planning authority may choose to apply a lower threshold taking into account local circumstances such as the size, role and function of their town centres. In preparing a LDP councils will have flexibility to set an appropriate threshold for their area, above which all applications for such development should be accompanied by an assessment of retail impact and need. This threshold can be up to, but must not exceed 2500 square metres gross external area.
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