Best and most versatile agricultural land
The National Planning Policy Framework (NPPF) suggests best and most versatile as being "Land in grades 1, 2 and 3a of the Agricultural Land Classification (ALC). ALC is graded from 1-5 and based on yield, range and versatility of use, and need for input." The second sentance does not appear in the 2024 version of the NPPF but was added in the version issued December 2025.
For further information regarding development on agricultural land refer to the UK Gov and Natural England document: Guide to assessing development proposals on agricultural land.
[edit] Related articles on Designing Buildings
- Agricultural tenancy.
- Article 4 direction.
- Change of use class.
- Local development order.
- National planning policy framework.
- Permitted development.
- Permitted development rights for the change of use of agricultural buildings.
- Planning enforcement.
- Planning permission.
- Prior approval.
- Small holding.
- Town and Country Planning (General Permitted Development) (Amendment) (England) Order.
- Use class.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Recognition, influence and growth
SocEnv identifies three strategic pillars in new strategy to 2045.
Discover the future of roofing, cladding and insulation.
New guidance for professional practice, cultural change and regulation in social housing.
The heritage of nuclear and conventional power stations.
New measures to stop people being ripped off
Government to protect families from cowboy builders and aggressive bailiffs.
New Futurebuild showcase brings an innovation-first approach.
National Planning Policy Framework
Understanding the 2026 changes.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.

















