Question to the Ministry of Housing, Communities and Local Government:

To ask His Majesty's Government, under the new National Planning Policy Framework, where an authority has a five-year supply and scores above 75 per cent in its most recent Housing Delivery Test, under what conditions a need for affordable housing would permit a development outside the local plan and settlement envelope; and what the percentage of affordable housing would need to be for such a development to be considered.

The new National Planning Policy Framework (NPPF), published in August 2026, introduces a revised presumption in favour of sustainable development which, in combination with new policies on development inside and outside of development boundaries, promotes a sustainable pattern of development. It does this by steering proposals to appropriate locations: maximising the use of suitable land within urban areas and taking a more selective approach to the types and locations of development outside settlements.

The Housing Delivery Test (HDT) and five-year housing land supply (5YHLS) policies are important mechanisms within the planning system to ensure homes are delivered in line with needs. Where an authority can demonstrate a 5YHLS and has achieved a HDT result of at least 75%, the presumption in favour of sustainable development would not be engaged through those policies.

While failing against either HDT or 5YHLS is a strong indicator of housing need in an area not being sufficiently met, it does not mean that planning permission for housing will be automatically granted, and local planning authorities must consider a range of factors when determining planning applications.

The NPPF also sets out that substantial weight should be given to the benefits of providing accommodation that will contribute towards meeting the evidenced needs of the local community, including those who require social and affordable housing.