In the UK, property subdivision (splitting a single property into multiple units or plots) interacts closely with the planning system, since it can affect housing supply, infrastructure, and community character. Here’s an overview:

 

Types of subdivision include the subdivision of land (plot splitting) A large garden or parcel of land is split into smaller plots for new houses/flats. Usually requires planning permission because it creates new dwellings and may affect access, parking, and local services.

 

Subdivision of a building includes converting a house into flats, or splitting commercial premises into smaller units. Also normally requires planning permission, unless it falls within specific permitted development rights (PDRs) building regulations approval is needed to ensure fire safety, insulation, and soundproofing.

​

The UK Planning Framework Town and Country Planning Act 1990 is the core legislation. Local planning authorities usually the district, borough, or unitary councils make decisions. National Planning Policy Framework (NPPF) provides guidance, but each council has its Local Plan and Supplementary Planning Documents (SPDs).

​

Full Planning Permission is needed for new dwellings from subdivision. Lawful Development Certificate (LDC) are sometimes sought to confirm if subdivision is PDR or exempt. Building Control approval is always required for physical works, even if planning isn’t. Section 106 agreements / CIL (Community Infrastructure Levy) may apply to larger subdivisions.

​

Applications may be refused for reasons like overdevelopment, inadequate amenity, or parking pressure. Refusals can be appealed to the Planning Inspectorate, however unauthorised subdivisions risk planning enforcement action.

​

Please do not hestitate to contact us shpoudl you wish to dicuss a prpety sub-divison project and let us show you how our Planning Consultancy and Architectural Services can work in unison to deliver sucess in the Planning System.

​