Single Storey Extension Planning Permission in Cotswold

This guide explains planning permission rules affecting single storey extension developments in Cotswold.

Permitted Development

Most householder development follows national permitted development rules unless local restrictions apply.

Height Rules

Development must comply with national permitted development height limits.

Depth Rules

Extensions must comply with national permitted development depth limits.

Boundary Rules

Development near boundaries must follow national permitted development rules.

Roof Alterations

Roof alterations must comply with national permitted development rules.

Materials

Materials should be similar in appearance to the existing house.

Local Restrictions

Find out if you are in a conservation area and how it will affect your plans, listed building consent

Find out if you are in a conservation area and how it will affect your plans, listed building consent

Last verified 2026-01

Single Storey Extension Planning Rules in Cotswold vs National Permitted Development

UK permitted development legislation allows many single storey extension projects without planning permission provided certain limits are followed.

However local planning authorities such as those covering Cotswold may impose additional planning controls through conservation area policies or Article 4 directions.

Planning Permission Questions in Cotswold

Do I need planning permission for single storey extension in Cotswold?

Many single storey extension projects in Cotswold may fall under permitted development rights if they remain within national planning limits.

What height can a single storey extension be without planning permission?

Development must comply with national permitted development height limits.

How close can a single storey extension be to a boundary?

Development near boundaries must follow national permitted development rules.

Do conservation areas affect planning permission?

Yes. Additional planning restrictions may apply in conservation areas or where Article 4 directions remove permitted development rights.

Nearby Planning Guidance

Planning Authority

Planning applications for single storey extension projects in Cotswold are handled by the local planning authority covering Cotswold, Gloucestershire.

For official planning advice consult the council planning portal for your area or visit the UK Planning Portal.

Visit the UK Planning Portal

Sources and Planning Guidance

Planning Disclaimer

This guide summarises planning rules affecting single storey extension developments in Cotswold.

Planning regulations may change and additional local planning policies may apply. Always confirm planning requirements with your local planning authority before starting development.

Last updated March 2026