Permitted Development Extensions in Hounslow

We provide clear, professional guidance on permitted development extensions in Hounslow 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 Hounslow

• Article 4 Direction restrictions
• Extension built beyond original rear wall line
• Prior approval required but not obtained
• Rear extension exceeds permitted projection limits Hounslow
• Side extension exceeds half the width of the original house
• Two-storey extension too close to rear boundary

Property Types We Advise On in Hounslow

• Properties with outbuildings
• Properties with previous extensions
• Detached houses in Hounslow
• Corner plot homes
• Victorian properties

Frequently Asked Questions

What is the 45-degree rule?

The 45-degree rule is a guideline used by some councils to assess impact on neighbouring properties, particularly in relation to light and outlook.

Does building regulations approval still apply?

Yes. Even if planning permission is not required, building regulations approval is usually still necessary.

How much does a planning application cost?

Fees vary depending on project type and local authority charges.

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

Can I build right up to my boundary?

It depends on height and location. Boundary proximity affects allowable eaves height.

What is the difference between planning permission and building regulations?

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

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