The planning position for a Blaenau Ffestiniog granny annexe hinges on genuine self-containment, an incidental outbuilding used as a home office or gym is treated very differently to independent living accommodation with its own bedroom, bathroom, and kitchen. We assess your specific plans honestly.
Get Your Free Route CheckThree routes exist for a Blaenau Ffestiniog 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 Blaenau Ffestiniog, but excludes anything used as separate, self-contained living accommodation, the introduction of sleeping facilities used independently changes everything.
Where your Blaenau Ffestiniog 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 Blaenau Ffestiniog annexe needing full planning permission usually needs both, our Building Regulations drawings in Blaenau Ffestiniog service covers the technical compliance side, and our structural calculations in Blaenau Ffestiniog 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 start every Blaenau Ffestiniog annexe project by establishing the real starting point, a mobile structure within Caravan Act limits, an incidental outbuilding, or genuine independent living space, since that single distinction shapes everything that follows.
Your Blaenau Ffestiniog application or certificate, whichever applies, is built around what your local council specifically expects to see, not a generic template.
Structural and building regulations work for Blaenau Ffestiniog annexe projects is handled properly from the outset, informed by real experience with this kind of project.
Getting the classification right for a Blaenau Ffestiniog annexe, mobile, incidental, or self-contained, matters as much as the design itself, and we treat both with equal seriousness.
Every Blaenau Ffestiniog 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 Blaenau Ffestiniog 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 Blaenau Ffestiniog.
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, Blaenau Ffestiniog annexes meeting this can often avoid planning permission if they stay ancillary to the house.
Only if it stays genuinely incidental to the house, Blaenau Ffestiniog 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 Blaenau Ffestiniog 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 Blaenau Ffestiniog 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 Blaenau Ffestiniog annexe projects, the planning route, whichever applies, and building regulations compliance, as one coordinated service.