Building an extension....

sdfuk

sdfuk

sdfuk

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Hi any buiders/architects out there!!!

I've seen a house that I would like to buy but the kitchen is too small. The kitchen itself (and room above) are already part of a two storey extension that was bult 25 years ago. My question relates to the 30% rule for extentions and when it was introduced.

Can I increase the size of an existing extension if this was built prior to the introduction of the 30% rule or does this rule apply retrospectively?

Failing the extension route am I right in thinking that you can add a conservatory of up to 30m sq without planning consent?

Boring question I know but thanks for any help

S
 
sdfuk said:
Failing the extension route am I right in thinking that you can add a conservatory of up to 30m sq without planning consent?
Click to expand...

No, this applies to Building Regulations.

You will not need building regulations if you do the following:

- keep the conservatory under 30m2
- most of the walls are glass, i.e. 50% is the figure (I think) you are allowed a dwarf wall.
- you keep an external quality door separating it from your house. e.g. you have to open the door from your house to walk into the conservatory
- the roof must be transluscent/let light through.
- must be constructed at ground floor level.

You can find further information here, here and here

Also agree with electric ant, you should ring your local planning and building control.

Hope this helps.
Kirbz
 
Hi

Thanks for the advice/links

Just realised that the 30% rule applies in National Parks - e.g. New Forest. Will talk to planners and see what they say
 
There is not a 30% rule when extending domestic properties

You can extend your house up to 70 cubic metres without requiring planning permission unless it is a terraced house and then its 50 cubic metres.

As you already have a large extension you will need planning permisison for the conservatory im afraid and likewise if you extend the extension again you will require planning permission and then its an 8 week determination date from the registration of your planning app

If you just go for a conservatory you wont require building regs :)
 
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Will it matter if the extension was built approx 25 years ago - does the planning apply retrospectively? Or will they just say no its already been extended.
 
It goes against the "original" house

It doesnt matter if the old extension is 2 years ago or 50 years ago mate.

It will only cost you £150 to apply for planning permission anyway

I'd refer you to the town and country planning act ;)

http://www.opsi.gov.uk/si/si1995/Uksi_19950418_en_4.htm#IDARND3D

Development is not permitted by Class A if—

(a) the cubic content of the resulting building would exceed the cubic content of the original dwellinghouse—

(i) in the case of a terrace house or in the case of a dwellinghouse on article 1(5) land, by more than 50 cubic metres or 10 %, whichever is the greater,
(ii) in any other case, by more than 70 cubic metres or 15%, whichever is the greater,
(iii) in any case, by more than 115 cubic metres;
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Ok - cheers - need to have a chat with the seller to see if they're happy to accept an offer subject to planning permission - they're in no hurry to move. Mind you by the time all thats sorthed out prices may have tumbled even more....I think I'll start a new thread on that

Cheers
S
 
Have you got dimensions of the proposed extension/works you'd like to do?

Bear in mind after you've submitted an application it would be 8 weeks to get a determination.

You could submit a "pre app enquiry" which the council would have to reply to within 28 days. It wont be a cast iron yes or no but they will give you an indication of whether you would be likely to get planning permission.

This is free of charge by the way
 
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