Double garage/shed?

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crofty1984

Original Poster:

15,858 posts

204 months

Monday 19th August 2019
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Hello all,

I could do with some assistance to understand planning permission and building regs for a shed I'm thinking of making.
The plan is "almost" a wooden double garage. 20 foot wide by 16 foot deep. Half for keeping motorbikes in, half as a workshop for when I break them.
It'll be at the bottom corner of my garden, so next to the boundary with my neighbours and the rear boundary of the house, which backs onto an access lane.

I'm aware that as it is less than 2m from a boundary, I have to keep the roof below 2.5 metres. Or if I can't possibly keep the roof that low I have to get planning permission. Or move it 2m from the boundary, which I don't want to do. The garden is long, but narrow.

What's confusing me is that it seems buliding regs may or may not apply.

It looks like as the area will be over 15 square metres but below 30 square metres, some building regs may come into play, unless:
I build it 1m from the boundary
I build it out of "substantially non-combustible materials"

Is that right? And if I build it out of wood, less than 1m from the boundary, what sort of planning permission and/or building regs might I have to consider? Is it even possible?
If it's going to be a lot more expensive to go for block & render instead of wood (I've already discounted brick built for cost reasons) I may just move it in that 1m.

Cheers!


Equus

16,883 posts

101 months

Monday 19th August 2019
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crofty1984 said:
What's confusing me is that it seems buliding regs may or may not apply.

It looks like as the area will be over 15 square metres but below 30 square metres, some building regs may come into play, unless:
I build it 1m from the boundary
I build it out of "substantially non-combustible materials"

Is that right?
Correct.

If you build it within 1m. of the boundary, it needs to be 'substantially non combustible', which if you're building it in timber effectively means that it would have to be built from timber that has been treated with an suitably certified fire retardant... which for external timber effectively means factory treated, since most of the site-applied treatments leach out with weathering over time, and are only certified for internal use.

Easiest and cheapest solution is definitely to keep it more than 1m. from the boundary.

sjg

7,452 posts

265 months

Monday 19th August 2019
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Planning for something similar, also have a narrowing garden and an access road at the back. Fireproofing can be using something like cedral board cladding which looks like wood but is made of cement instead.

I’d be inclined to go the planning route too for a pitched roof, particularly if that access road serves other garages of a similar design and your neighbours aren’t likely to object.