Understanding Permitted Development and Use Classes

There are three key pieces of planning legislation which control the development and use of land in Northern Ireland.

These are:

• The Planning (Northern Ireland) Order 1991 (‘the 1991 Order’)
• The Planning (Use Classes) Order (Northern Ireland) 2004 (the ‘UCO’)
• The Planning (General Development) Order (Northern Ireland) 1993 (‘the GDO’)

Following these links will help you understand what these pieces of legislation do and the relationship between them.