Development within the Green Belt is inherently considered as an inappropriate form of development, however, the following exemptions provide a non-exhaustive list of some that apply and we come across on a regular basis at Warner Planning:

• Development or buildings which would support a use for agriculture and forestry.
• Extending, altering, reusing or replacing an existing building, subject to this not resulting in disproportionate additions over and above the size of the original building. A replacement building must be for the same use and not materially larger than the original building. 
• Limited residential infilling in villages, which basically fills in gaps in the built form within settlements, but typically the plot would need to be well contained/encompassed by development to be deemed acceptable.
• Provision of affordable housing for identified local community needs under policies set out in the development plan (including policies for rural exception sites).
• The partial or complete redevelopment of previously developed land (including a material change of use to residential or mixed use including residential), whether redundant or in continuing use (excluding temporary buildings), which would not cause substantial harm to the openness of the Green Belt.
• A newer form of exemption for consideration would be Grey Belt, where the development is meeting an unmet need, is sustainably located and does not fundamentally undermine the Green Belt purposes (a, b & d).

Additionally, major development which provides 50% affordable housing, can be provided significant weight in the balancing exercise.