Permitted Development Extensions in Sevenoaks

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

• Outbuilding positioned forward of principal elevation
• Prior approval required but not obtained
• Article 4 Direction restrictions
• Extension covering more than 50% of garden area
• Extension on a flat or maisonette
• Rear extension exceeds permitted projection limits Sevenoaks

Property Types We Advise On in Sevenoaks

• Detached houses in Sevenoaks
• Properties with outbuildings
• Townhouses
• Terraced houses
• New build developments

Frequently Asked Questions

How close can I build to my neighbour’s boundary?

Extensions built close to a boundary must meet height and eaves restrictions, especially if within two metres of the boundary.

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.

Can I build over a sewer?

Building near or over a public sewer may require a build-over agreement from the relevant water authority.

Can I build right up to my boundary?

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

Can I extend onto agricultural land?

Residential permitted development rights apply only within the residential curtilage.

What is retrospective planning permission?

Retrospective applications seek approval for work already carried out.

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