A Braintree annexe built to qualify as a caravan under the 1968 Act, moveable in one or two sections within strict size limits, can sometimes avoid planning permission altogether, provided it stays genuinely ancillary to the house. We confirm whether that route fits your plans.
Get Your Free Route CheckThree routes exist for a Braintree granny annexe, and which one applies depends on genuine facts about the structure, not assumptions. The Caravan Sites Act 1968 defines a caravan by size, 20 metres by 6.8 metres, 3.05 metres internal height, and mobility, capable of being moved by road in one or two sections.
Class E permitted development covers incidental outbuildings in Braintree, but excludes anything used as separate, self-contained living accommodation, the introduction of sleeping facilities used independently changes everything.
Where your Braintree annexe doesn’t fit either of the simpler routes, a full planning application is the honest answer, and we confirm this properly rather than guess. A Braintree annexe needing full planning permission usually needs both, our Building Regulations drawings in Braintree service covers the technical compliance side, and our structural calculations in Braintree 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 Braintree 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 Braintree 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 Braintree’s council specifically expects to see.
Getting the classification right for a Braintree annexe, mobile, incidental, or self-contained, matters as much as the design itself, and we treat both with equal seriousness.
Every Braintree annexe project gets an honest assessment against all three routes, not a default assumption that the most complex one applies.
We coordinate structural and building regulations work for Braintree annexes properly, since getting this wrong can hold up an otherwise straightforward project. If you need help with a granny annexe, give us a call on 0330 133 5316 or fill in the form below.
It depends on three things, whether the structure genuinely qualifies as a caravan under the Caravan Sites Act, whether it stays incidental to the house under permitted development, or whether it’s a self-contained dwelling, which almost always needs a full application in Braintree.
Under the Caravan Sites Act 1968, a structure qualifies as a caravan if it’s capable of being moved by road in no more than two sections, and doesn’t exceed 20 metres in length, 6.8 metres in width, or 3.05 metres in internal height, Braintree annexes meeting this can often avoid planning permission if they stay ancillary to the house.
Only if it stays genuinely incidental to the house, Braintree outbuildings under Class E permitted development cannot be separate, self-contained living accommodation, the moment sleeping facilities are used independently, permitted development stops applying.
A Braintree annexe with its own bedroom, bathroom, and kitchen, used independently of the main house rather than as shared accommodation, is generally treated as self-contained, which usually means full planning permission is needed.
We recommend it, even where your Braintree annexe genuinely qualifies as a caravan or permitted development, a Lawful Development Certificate gives you written confirmation rather than an assumption that could cause problems later, particularly when selling.
Yes, we handle the full picture for Braintree annexe projects, the planning route, whichever applies, and building regulations compliance, as one coordinated service.