North Norfolk homeowners considering a granny annexe are often surprised to learn a mobile home route exists alongside the usual planning permission and permitted development options. We give you an honest read on all three for your specific North Norfolk property.
Get Your Free Route CheckA granny annexe in North Norfolk 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 North Norfolk properties, and we confirm this honestly rather than assume. A North Norfolk annexe needing full planning permission usually needs both, our Building Regulations drawings in North Norfolk service covers the technical compliance side, and our structural calculations in North Norfolk 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
Every North Norfolk annexe enquiry starts with the same honest question, mobile caravan, incidental outbuilding, or genuine separate dwelling, since the answer determines everything that follows.
From there, we confirm the correct route for your North Norfolk project and prepare exactly what’s needed, a Lawful Development Certificate or a full planning application.
Structural detail and building regulations compliance for North Norfolk annexes are handled properly throughout, not bolted on at the end.
We tell North Norfolk 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 North Norfolk annexe, and we assess this honestly rather than assume either way.
Structural and building regulations detail is built into every North Norfolk 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.
Not automatically, a mobile structure meeting the Caravan Act’s size and mobility test, or a genuinely incidental outbuilding, can potentially avoid it in North Norfolk, but a self-contained annexe with its own facilities used independently usually can’t.
Yes, potentially, if your North Norfolk 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 North Norfolk 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 North Norfolk 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 North Norfolk projects, confirming the position in writing protects you if the classification is ever questioned, especially at the point of sale.
Absolutely, North Norfolk annexe clients get the planning classification and building regulations detail handled together, not as separate, disconnected pieces of work.