Help With Planning
Caravan Act, PD & Full Planning Explained

Granny Annexe Planning Permission in
Ardingly

Ardingly homeowners considering a granny annexe are often surprised to learn a mobile home route exists alongside the usual planning permission and permitted development options. We give you an honest read on all three for your specific Ardingly property.

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Local to Ardingly
Three Routes Explained
Council-Ready Applications

The Three Routes For A Ardingly Granny Annexe

A granny annexe in Ardingly 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 Ardingly properties, and we confirm this honestly rather than assume.

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 Ardingly

Every Ardingly annexe enquiry starts with establishing the real facts, is the structure genuinely mobile within Caravan Act limits, is it staying incidental to the house, or is it a self-contained dwelling, since that shapes the whole route.

From there, we prepare exactly what your Ardingly project needs, whether that’s a Lawful Development Certificate confirming caravan or permitted development status, or a full planning application.

Structural and building regulations input runs alongside the planning process for Ardingly annexe projects, whichever route applies.

The Real Requirements For Ardingly Granny Annexes

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

Structural and building regulations detail is built into every Ardingly 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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What Ardingly Families Ask About Garden Annexes

Can I build a granny annexe in Ardingly 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 Ardingly, but a self-contained annexe with its own facilities used independently usually can’t.

Can my Ardingly annexe qualify as a mobile home?

Yes, potentially, if your Ardingly 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 Ardingly?

Class E permitted development in Ardingly 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 Ardingly annexe need full planning permission?

Once a Ardingly 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 Ardingly annexe?

Yes, this is genuinely worth having for Ardingly 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 Ardingly properties?

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