Permitted Development Extensions in Gerrards Cross

We provide clear, professional guidance on permitted development extensions in Gerrards Cross 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 Gerrards Cross

• Materials not matching existing dwelling
• Side extension exceeds half the width of the original house
• Extension covering more than 50% of garden area
• Extension built beyond original rear wall line
• Two-storey extension too close to rear boundary
• Prior approval required but not obtained

Property Types We Advise On in Gerrards Cross

• Chalet-style houses
• Edge-of-settlement homes
• Rural properties
• Bungalows
• Semi-detached houses

Frequently Asked Questions

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.

Can I extend a house that has already been extended?

Permitted development limits are cumulative, so previous extensions may reduce what is still allowed.

How long does a Lawful Development Certificate take?

Most councils determine applications within eight weeks, though timescales may vary.

Can I convert my garage into living space?

Garage conversions are often permitted development, but planning restrictions may apply depending on conditions attached to the original approval.

What measurements are used for height?

Height is typically measured from the highest ground level adjacent to the building.

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.

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