Help With Planning
Caravan Act, PD & Full Planning Explained

Granny Annexe Planning Permission in
Sittingbourne

Sittingbourne families often assume a granny annexe automatically needs full planning permission, in reality a structure that qualifies as a caravan under the 1968 Act, or a genuinely incidental outbuilding, can sometimes avoid that route entirely. We establish which applies to your specific Sittingbourne project.

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Local to Sittingbourne
Three Routes Explained
Council-Ready Applications

What Sittingbourne Families Need To Know About Annexes

A granny annexe in Sittingbourne 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 Sittingbourne properties, and we confirm this honestly rather than assume. A Sittingbourne annexe needing full planning permission usually needs both, our Building Regulations drawings in Sittingbourne service covers the technical compliance side, and our structural calculations in Sittingbourne 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

Granny annexe planning permission

How We Help in Sittingbourne

We start every Sittingbourne annexe project by establishing the real starting point, a mobile structure within Caravan Act limits, an incidental outbuilding, or genuine independent living space, since that single distinction shapes everything that follows.

Your Sittingbourne application or certificate, whichever applies, is built around what your local council specifically expects to see, not a generic template.

Structural and building regulations work for Sittingbourne annexe projects is handled properly from the outset, informed by real experience with this kind of project.

Why Sittingbourne Families Trust Our Annexe Specialists

We tell Sittingbourne 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 Sittingbourne annexe, and we assess this honestly rather than assume either way.

Structural and building regulations detail is built into every Sittingbourne 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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Sittingbourne Granny Annexe Questions Answered

Can I build a granny annexe in Sittingbourne without planning permission?

Not automatically, a mobile structure meeting the Caravan Act’s size and mobility test, or a genuinely incidental outbuilding, can potentially avoid it in Sittingbourne, but a self-contained annexe with its own facilities used independently usually can’t.

Can my Sittingbourne annexe qualify as a mobile home?

Yes, potentially, if your Sittingbourne annexe meets the legal size limits, 20 metres by 6.8 metres by 3.05 metres internal height, and is genuinely capable of being moved by road, it may qualify as a caravan under the 1968 Act.

Does Class E cover a granny annexe in Sittingbourne?

Class E permitted development in Sittingbourne covers incidental structures like a home office or gym, subject to height and coverage limits, but not genuine independent living accommodation with its own bedroom, bathroom, and kitchen.

When does my Sittingbourne annexe need full planning permission?

Once a Sittingbourne structure functions as independent living space, its own facilities, used separately from the household, it’s no longer incidental, and neither permitted development nor the Caravan Act route typically applies.

Should I get written confirmation for a Sittingbourne annexe?

Yes, this is genuinely worth having for Sittingbourne projects, confirming the position in writing protects you if the classification is ever questioned, especially at the point of sale.

Do you coordinate the full annexe process for Sittingbourne properties?

Absolutely, Sittingbourne annexe clients get the planning classification and building regulations detail handled together, not as separate, disconnected pieces of work.