Louth granny annexe projects range from a straightforward incidental outbuilding to a genuinely self-contained dwelling, and the planning route differs enormously between the two. We work out which applies to you honestly.
Get Your Free Route CheckThe planning position for a Louth 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 Louth garden without full planning permission, provided it stays ancillary.
Where a Louth 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 Louth annexe needing full planning permission usually needs both, our Building Regulations drawings in Louth service covers the technical compliance side, and our structural calculations in Louth service covers the engineering detail.
Caravan Act, permitted development, or full planning
Movable structures that may need no permission at all
Permitted development limits checked properly
Applications built to be approved
We begin every Louth 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 Louth 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 Louth’s council specifically expects to see.
Honesty about what your Louth 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 Louth annexe projects, which is exactly what most generic guidance gets wrong.
A Lawful Development Certificate, where your Louth 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.
Not automatically, a mobile structure meeting the Caravan Act’s size and mobility test, or a genuinely incidental outbuilding, can potentially avoid it in Louth, but a self-contained annexe with its own facilities used independently usually can’t.
Yes, potentially, if your Louth 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.
Class E permitted development in Louth 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.
Once a Louth 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.
Yes, this is genuinely worth having for Louth projects, confirming the position in writing protects you if the classification is ever questioned, especially at the point of sale.
Absolutely, Louth annexe clients get the planning classification and building regulations detail handled together, not as separate, disconnected pieces of work.