A clear starting point for residential projects. The right route depends on your property, the proposal and local constraints.
HOME project · Design in context01
Planning or permitted development?
Some home extensions can use permitted development rights, subject to conditions and limits. Restrictions and previous alterations may affect what is possible. Larger rear extensions can require prior approval.
Planning permission and building-regulations approval are different. A project may need both, and most extensions require building-regulations approval. Technical drawings and structural information help explain how the work will comply.
Permitted development does not remove obligations under other regimes. A lawful development certificate can help establish that a proposal is lawful. We identify the next checks for your site and bring in specialist advice where needed.
General starting-point guidance for England, checked 29 September 2026. Confirm the requirements for your particular project before starting work.
YOUR NEXT STEP
Give your proposal the right starting point.
Tell us what you want to change. We’ll help define the right drawing package. You can appoint HOME for drawings independently of our building services.