Help With Planning
Caravan Act, PD & Full Planning Explained

Granny Annexe Planning Permission in
Paisley

Paisley 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 Paisley project.

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Local to Paisley
Three Routes Explained
Council-Ready Applications

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

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

We begin every Paisley 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 Paisley 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 Paisley’s council specifically expects to see.

What Paisley Annexe Clients Actually Get

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

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

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

Can my Paisley annexe qualify as a mobile home?

Yes, potentially, if your Paisley 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 Paisley?

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

Once a Paisley 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 Paisley annexe?

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

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