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Garden Room Regulations Assessment Tool

Find out if your garden room needs planning permission or building control approval – in minutes

Thinking about adding a garden room, home office or outbuilding to your property? Before you start, it’s important to understand whether your project requires planning permission or building regulations approval.

Our free assessment tool helps you check your project against UK Permitted Development Rights (Class E) and Building Regulations 2010. Simply answer a few questions about your proposed garden room and we’ll provide an instant indicative assessment.

How to Use This Tool

  • Enter your desired dimensions — Tell us the height, width and depth of your proposed garden room.
  • Add property details — Let us know about your property type, location and any special designations.
  • Describe the intended use — Home office, entertainment space, gym or something else?
  • Get your assessment — Receive an instant report showing whether planning permission or building control approval may be required.
  • Download your report — Save or print your results as a PDF for your records.

What This Tool Checks

  • Permitted Development Rights eligibility.
  • Height and boundary distance requirements.
  • Garden coverage limits (50% rule).
  • Building Regulations exemptions.
  • Special conditions for designated land, listed buildings and more.

This tool is designed and provided by Bexley Garden Rooms to help you understand the regulatory requirements for your project. For a personalised quote or to discuss your garden room plans, contact us today.

Disclaimer: This tool provides an indicative assessment based on standard regulations. Local constraints (Article 4 directions), listed building status or specific local by-laws are not checked. Always consult with your Local Planning Authority or a professional surveyor when planning and before starting work. Bexley Garden Rooms accepts no liability for any errors, omissions or inaccuracies in this assessment.

Sources: Planning information is based on the official Planning Portal – Outbuildings Guide, the national reference used by councils and planning officers for Permitted Development Rights (Class E). Building Control information is based on the Planning Portal – Building Regulations for Outbuildings guide.

Why choose Bexley Garden Rooms?

Fully Bespoke

Every one of our garden rooms are made bespoke and onsite, making perfect use of the space available – no matter the size or shape of the plot

Five-Star Service

We pride ourselves on delivering immense customer service, as illustrated by our Which? Trusted Trader status and many positive reviews on Google

Turnkey Builds

From the initial build through to plastering, electrics, and those all-important finishing touches, we can look after every aspect of your bespoke room

Sustainability

We use only the best materials and innovative construction techniques to ensure your garden room is stylish, durable, and energy efficient

Ready to transform your home with BGR?

If you’re considering a bespoke garden room for your home, or are interested in any of our other services, simply get in touch using the details below or the contact form, including a phone number.

We require your number to take more thorough details from you and therefore provide a more accurate estimate; we won’t use it hound you with unwarranted calls. 

A member of our team will then be in touch to help you start your Bexley Garden Rooms journey.

Please note our office hours are Monday–Friday, 8:30am–5:30pm