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 and news
New Scottish and Welsh governments
CIOB stresses importance of construction after new parliament elections.
The sad story of Derby Hippodrome
An historic building left to decay.
ECA, JIB and JTL back Fabian Society call to invest in skills for a stronger built environment workforce.
Women's Contributions to the Built Environment.
Calls for the delayed Circular Economy Strategy
Over 50 leading businesses, trade associations and professional bodies, including CIAT, and UKGBC sign open letter.
The future workforce: culture change and skill
Under the spotlight at UK Construction Week London.
A landmark moment for postmodern heritage.
A safe energy transition – ECA launches a new Charter
Practical policy actions to speed up low carbon adoption while maintaining installation safety and competency.
Frank Duffy: Researcher and Practitioner
Reflections on achievements and relevance to the wider research and practice communities.
The 2026 Compliance Landscape: Fire doors
Why 'Business as Usual' is a Liability.
Cutting construction carbon footprint by caring for soil
Is construction neglecting one of the planet’s most powerful carbon stores and one of our greatest natural climate allies.
ARCHITECTURE: How's it progressing?
Archiblogger posing questions of a historical and contextual nature.
The roofscape of Hampstead Garden Suburb
Residents, architects and roofers need to understand detailing.
Homes, landlords. tenants and the new housing standards
What will it all mean?



















