Granny Annexe Planning Permission in Cirencester (Gloucestershire)

Cirencester Annexes: Caravan Act, Permitted Development, Or Full Application

A granny annexe in Cirencester can follow three genuinely different routes. A structure that meets the legal definition of a caravan under the Caravan Sites Act 1968, capable of being moved by road in one or two sections and within maximum dimensions of 20 metres by 6.8 metres with an internal height of 3.05 metres, can often be sited without planning permission provided it remains ancillary to the house.

An outbuilding used incidentally to the enjoyment of the house, a home office, gym, or storage, can fall under Class E permitted development, but the moment it includes genuine sleeping accommodation used independently, it’s no longer considered incidental, and permitted development stops applying.

Where neither route fits, a full planning application is the reality for Cirencester properties, and we confirm this honestly rather than assume. A Cirencester annexe needing full planning permission usually needs both, our Building Regulations drawings in Cirencester service covers the technical compliance side, and our structural calculations in Cirencester service covers the engineering detail.

Right Route Confirmed

Caravan Act, permitted development, or full planning

Caravan Act Route

Movable structures that may need no permission at all

PD Size & Siting

Permitted development limits checked properly

Council-Ready

Applications built to be approved

How We Help in Cirencester (Gloucestershire)

We begin every Cirencester annexe project with an honest assessment of the actual plans, size, mobility, and intended use, before any design work begins.

Where the Caravan Act or permitted development genuinely applies to your Cirencester project, we confirm that properly, usually via a Lawful Development Certificate, rather than defaulting to a full application that isn’t needed.

Where genuine self-containment means a full application is required, we build that around what Cirencester’s council specifically expects to see.

What Cirencester Annexe Clients Actually Get

We tell Cirencester families honestly whether their annexe genuinely qualifies for the Caravan Act or permitted development routes, rather than defaulting every enquiry to a full application.

Getting the self-containment question right matters more than almost anything else for a Cirencester annexe, and we assess this honestly rather than assume either way.

Structural and building regulations detail is built into every Cirencester annexe project from the start, whichever planning route applies. If you need help with a granny annexe, give us a call on 0330 133 5316 or fill in the form below.

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Cirencester Annexe Planning Questions Answered

What determines if my Cirencester annexe needs planning permission?

This genuinely depends on your specific plans for Cirencester, we check whether the structure is mobile, incidental, or self-contained before advising either way.

What size limits apply to a caravan-style annexe in Cirencester?

The Caravan Sites Act 1968 sets the limits, 20 metres long, 6.8 metres wide, 3.05 metres internal height, and the structure must be moveable by road in one or two sections, we check whether your Cirencester plans genuinely meet this.

What outbuilding rules apply to a Cirencester annexe?

It depends on genuine use, an incidental Cirencester outbuilding can qualify under Class E, but introducing real sleeping accommodation used independently takes it outside permitted development regardless of size.

What makes an annexe a separate dwelling in Cirencester?

Genuine independence is the test in Cirencester, if the annexe could function as a separate home on its own, full planning permission is almost always the realistic route.

Is a Lawful Development Certificate worth it in Cirencester?

Strongly recommended for Cirencester annexes, an assumption that a structure qualifies isn’t the same as formal confirmation, and a Lawful Development Certificate closes that gap.

Can you manage everything for my Cirencester annexe project?

Yes, we coordinate every part of a Cirencester annexe project, from establishing the correct route through to building regulations sign-off, so nothing falls through the gap.