You must check if you need approval before you construct or change buildings in certain ways. You might also need building regulations approval for many alteration projects.
You can find out more on our Find out if you need building regulations approval pages.
Choose a type of application
You must decide on the type of application for your planned build, extension or alteration work.
This is the most thorough option. You can expect a decision within 5 weeks, or 2 months with your consent.
You'll get a completion certificate within 8 weeks of completion of the building work as long as it complies.
This type of application is only for smaller projects. You can start work 2 days after your notice has been submitted. You don't get formal approval like you do with full plans.
You can apply for 'regularisation' - retrospective approval for work already carried out without consent