Granny Annexe Planning Permission in Bushey

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

The planning position for a Bushey annexe comes down to two questions, is it genuinely mobile within the Caravan Act’s size limits, and is it genuinely ancillary to the house rather than a separate, independent dwelling.

A structure meeting the caravan definition, movable by road, built in no more than two sections, within 20 metres by 6.8 metres by 3.05 metres internal height, can often be sited in a Bushey garden without full planning permission, provided it stays ancillary.

Where a Bushey annexe is permanently fixed, or genuinely self-contained with its own facilities used independently, the caravan and permitted development routes generally don’t apply, and a full application becomes the realistic path. A Bushey annexe needing full planning permission usually needs both, our Building Regulations drawings in Bushey service covers the technical compliance side, and our structural calculations in Bushey 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 Bushey

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

What Bushey Annexe Clients Actually Get

Honesty about what your Bushey annexe actually needs comes before any recommendation, not after we’ve quoted for the more expensive route.

We understand the genuine legal distinction between incidental and self-contained use for Bushey annexe projects, which is exactly what most generic guidance gets wrong.

A Lawful Development Certificate, where your Bushey annexe genuinely qualifies for it, gives you written confirmation rather than a risky assumption. 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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Bushey Granny Annexe Questions Answered

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

Can my Bushey annexe qualify as a mobile home?

Yes, potentially, if your Bushey 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 Bushey?

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

Once a Bushey 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 Bushey annexe?

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

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