Permitted Development
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Discussion

52classic

Original Poster:

2,634 posts

234 months

Monday 11th July 2011
quotequote all
Been planning a small extension for some time. Only 3 Sq Metres on each of 2 floors but it will greatly improve the useful space in what is (and was built as) a dormer bungalow.

Sure to be OK for permitted Development I thought.... But the council have other ideas and say that because my garage is within 5 metres of the house the volume of the extension must be added to the volume of the garage and that will exceed 70 cubic metres!

Seems to me that most ordinary houses have their garage within 5 metres with a displacement of around 50 cubic metres so there is very little left for 'permitted development.'

AFIK my garage was built at the same time as the house around 1954.

Have I missed something here?

Busa mav

2,816 posts

178 months

Monday 11th July 2011
quotequote all
volume has nothing to do with PD for an extension nowadays .

The conversation you had with the planners must have been over 3 years ago.

herbialfa

1,489 posts

226 months

Monday 11th July 2011
quotequote all
^^^^^^ What Busa mav said ^^^^^^^

The only volume issue nowadays is converting lofts with dormers.

Have a look on the planning portal website. It should give you all the answers you need.

If its a single storey rear extension on a detached property you can go out 4 metres as long as you keep the height under 4 metres - in principle.

If its a semi then its 3 metres!!!

From what I understand you are talking 2 storeys, so yes that will need planning!

A lot of people have been confused over these new PD rights thinking if you apply you will be refused.

The answer is NO not neccessarily so. It just means that if you now go over what you are allowed to have under PD then you need an application.

Where are you based???

52classic

Original Poster:

2,634 posts

234 months

Monday 11th July 2011
quotequote all
Thanks lads. Typical L shaped detached dormer bungalow, imagine a triangular 'fillet' in the crook of the L.

Ground and first floor with a Norfolk hipped roof tied in to the existing ridge. Therfore the length and breadth of the building is unchanged. The triangular fillet is 2.5metres both sides so 3.1 Sq. M.
on each floor.

The extra space gives us a bigger hall and landing but more importantly a proper stair flight. Currently it is steep and narrow.

Apparently the property has always been a dormer bungalow.

I'm in Cardiff. The enquiry to Planning was only last week! My plans are not CAD but I could reduce and scan 'em. Seems that it's not the fact of the extension being 2 storey which bothers them, just the volume.


Busa mav

2,816 posts

178 months

Monday 11th July 2011
quotequote all
If you post up sketches , you will also need to measure from the boundary to the side elevation as this is a determining factor for a 2 storey extension under PD.

Have a look at the planning portal for the PD allowances .

I can only think the planner you are in talks with has been asleep 3 years , quite possible , or is considering it is solely a roof extension,

as Herbialfa says , this is about the only part of PD that is controlled by volume nowadays

52classic

Original Poster:

2,634 posts

234 months

Tuesday 12th July 2011
quotequote all
Busa, I'd be glad to post some sketches as soon as my son can tell me how to do such a technical thing!

However, The Planning Officer says that his decision is based on the 1995 ste of rules because the Welsh Assembly have never accepted the changes put into place in England!

Busa mav

2,816 posts

178 months

Tuesday 12th July 2011
quotequote all
I have learnt something new smile

Then the 70 m3 does indeed come into the equation , and the proximity of the existing garage is counted.

You will need full householder planning permission .