Permitted Development Extensions in Merton

We provide clear, professional guidance on permitted development extensions in Merton and surrounding areas. Whether you’re planning a rear, side, or two-storey extension, understanding local planning constraints and national permitted development limits is essential before work begins.

Common Permitted Development Issues in Merton

• Permitted development rights removed by planning condition
• Extension within a conservation area in Merton
• Incorrect measurement from original dwelling
• Overlooking concerns from upper floor windows
• Prior approval required but not obtained
• Eaves height exceeding 3 metres near boundary

Property Types We Advise On in Merton

• Edge-of-settlement homes
• Bungalows
• Victorian properties
• Townhouses
• 1930s suburban homes

Frequently Asked Questions

What is the difference between planning permission and building regulations?

Planning permission controls development impact, while building regulations ensure structural safety and compliance.

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

Can I extend in a National Park?

National Parks have stricter controls and reduced permitted development rights.

What happens if permitted development rights have been removed?

If rights have been removed by planning condition or Article 4 Direction, you will likely need to submit a full planning application before building.

Are side extensions allowed under permitted development?

Side extensions are permitted in some cases, but must not exceed half the width of the original house and must meet height limits.

Do I need prior approval for a larger extension?

In some cases, larger home extensions require a prior approval process where neighbours are notified and the council assesses certain impacts.

If you're planning an extension in Merton and want to confirm whether it qualifies under permitted development rules, request a free assessment today and get clarity before you build.