We want to build a conservatory 21ft by 21ft at the end of our property do we need planning in Lancashire?
Question:Does anybody know how many cubic feet this is? The exact measurements are 21ft by 21ft but there is a square chunk out of the top left corner measuring 11ft by 10ft square (existing utility room with external door).
Answers:
As others have said, it depends how big your house is (or was, before any extensions were made to it). The floor area is easy to calculate from your figures - in square feet, it's 21 x 21 = 441, less 11 x 10 = 110. 441 - 110 = 331 square feet of floor area. To get its volume in cubic feet, you need to multiply the floor area by the height, and you haven't told us that. Also, the height isn't easy if you have a sloping roof. But, if the "average" height is 10', your cubic footage will be 331 x 10 = 3310 cubic feet. Now, as the planners work in metric, you need to do the whole calculation again, using metres. My example of 3310 cubic feet would work out to just under 94 cubic metres.
However, your floor area, at 331 square feet, is very slightly over 30 square metres. Under 30 square metres, you don't need Bulilding Regulation consent for a conservatory (as long as there's a proper door between it and the house, it's predominantly glass, and the glass is toughened in vulnerable areas). At 30 sq m or over, you DO need Building Regs consent, whether or not planning permission is also needed. Odd that the criterion for Building Regs is floor area, not volume, but that's the way it is. Consider reducing to 20' x 21'.
If in doubt, ask the planners and the building inspectors. Don't rely on conservatory companies to get any consents which are needed - they often fail to do this. And make sure they are qualified to give a "FENSA certificate" on the job. The Building Inspector will tell you what that's about - it would take too long on here.
Make sure your deeds don't contain any restrictions on alterations or additions to your house, especially if it is long leasehold.
you do need planning and building regulations.
You probably do need planning permission but check with your council. I had one built and was given consent without any problem.. If you just go ahead without,they can make you take it down so best go the proper route...
It depends on your house dimensions.
# A detached / semi detached house can add up to 70 cubic metres or 15% of the un-extended house volume up to a maximum of 115 cubic metres
# A terraced property can add up to 50 cubic metres or 10% of the un-extended house volume up to a maximum of 115 cubic metres
You must also subtract the size of any extensions that have been added to the house.
Depends whether or not you live in Lancashire. You sure you're not a crap maths teacher because you are obviously not a builder.
Seem to recall, from the ether, new ruling on planning permission was announced. Some things that previously required it, extensions etc., are now exempt unless they bother neighbours. Contact you local Planning Dept., for clarification of new rules
yes
Definitely check with your local town/city/borough council planners (Development Control) before you do anything.
It's not a black or white answer. It depends on your property's development rights, if its in a conservation area and if you have made any other alterations.
Make sure you talk to Building Control too. Some Councils don't operate a joined up service where they cross check applications, but most do.
Blackpool Council has a lot of info on their website, but check with your own Council to make sure...
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