Permitted Development Extensions in Marlow

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

• Extension within a conservation area in Marlow
• Article 4 Direction restrictions
• Overlooking concerns from upper floor windows
• Eaves height exceeding 3 metres near boundary
• Rear extension exceeds permitted projection limits Marlow
• Raised decking exceeding permitted height

Property Types We Advise On in Marlow

• Properties with previous extensions
• Townhouses
• Edge-of-settlement homes
• Semi-detached houses
• Rural properties

Frequently Asked Questions

Can I extend a house that has already been extended?

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

What is the maximum rear projection allowed?

Detached houses may extend up to four metres under standard rules, or eight metres with prior approval. Smaller limits apply to other house types.

How high can my extension be?

Height limits vary, but rear extensions under permitted development generally cannot exceed four metres for detached houses or three metres for others.

Will neighbours be notified?

Under prior approval procedures or planning applications, neighbours are typically notified.

Can I extend my house in a flood zone?

Extensions in flood risk areas may require additional assessments and possibly planning permission.

Are basements covered by permitted development?

Basement development may require planning permission, especially if it alters the external appearance.

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