Whether it’s a mobile annexe under the Caravan Act or a permanent structure needing full planning permission, Newmarket projects of this scale benefit from a Lawful Development Certificate confirming the position in writing, not just an assumption.
Get Your Free Route CheckNewmarket homeowners considering a granny annexe need to understand what actually changes the planning position, self-containment. An outbuilding used incidentally, for storage, a home office, or a hobby room, can be permitted development in Newmarket, subject to height and coverage conditions.
Introduce a genuine bedroom, bathroom, and kitchen used independently of the main house, and that outbuilding stops being incidental, taking it outside permitted development regardless of size.
A mobile structure meeting the Caravan Sites Act 1968 definition offers a third route for Newmarket annexes, but only where it genuinely remains ancillary to the household, not a separate residence in its own right. A Newmarket annexe needing full planning permission usually needs both, our Building Regulations drawings in Newmarket service covers the technical compliance side, and our structural calculations in Newmarket 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 Newmarket 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 Newmarket 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 Newmarket’s council specifically expects to see.
We treat every Newmarket annexe project as needing a genuinely honest assessment first, not a sales pitch toward the most expensive route.
Real experience with the Caravan Act, permitted development, and full application routes is what we bring to every Newmarket project, not a one-size answer.
Structural and building regulations detail for Newmarket annexes are handled properly from the outset, whichever route your project actually takes. 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 Newmarket, but a self-contained annexe with its own facilities used independently usually can’t.
Yes, potentially, if your Newmarket 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 Newmarket 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 Newmarket 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 Newmarket projects, confirming the position in writing protects you if the classification is ever questioned, especially at the point of sale.
Absolutely, Newmarket annexe clients get the planning classification and building regulations detail handled together, not as separate, disconnected pieces of work.