Step-by-Step Guide to Planning Permission in the UK

Planning a home extension or major renovation? One of the first questions homeowners ask is: Do I need planning permission?

Here’s a step-by-step guide to help you understand the process.

Step 1: Check if Your Project Falls Under Permitted Development

Many extensions and loft conversions fall under Permitted Development (PD), meaning you may not need full planning permission.

However, this depends on:

• Property type

• Location (e.g. Conservation Area)

• Size of extension

• Previous alterations

Always verify before starting.

Step 2: Consult an Architect or Planning Specialist

Even if your project seems straightforward, professional advice ensures:

• Compliance with regulations

• Accurate drawings

• Reduced risk of rejection

Early planning prevents costly redesigns.

Step 3: Submit Your Application (If Required)

If planning permission is needed:

• Architectural drawings are submitted

• Local authority reviews the proposal

• Neighbours may be consulted

The decision process usually takes 8–10 weeks.

Step 4: Building Regulations Approval

Planning permission is separate from Building Regulations — which are almost always required.

These ensure:

• Structural safety

• Fire compliance

• Insulation standards

• Electrical and plumbing safety

Final Thoughts

Planning permission may seem complex, but with proper guidance, it becomes manageable.

A well-prepared application significantly increases approval chances and keeps your project on schedule.