Splitting an existing planning permission

7 Dec 2016
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United Kingdom
This is probably a stupid question... I have planning permission to convert my garage to a bedroom, add a pitched roof on the garage and build a flat roofed utility linking the garage and the house. Now we have got quotes in it is looking too expensive to do the whole thing, so I was thinking of just doing the utility which is the most important bit for us and leaving the garage as is.

I know you have to re-apply if you make substantial changes to your plans, but do you have to re-apply if you are just doing half the work? I will probably have to re-do the building regs plans as there will be some internal changes - the wall between the garage and the utility will need insulating now, but I could do without going back to PP.

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No, believe it or not, provided you actually start within the three year period, you have the rest of time to finish it off.
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Yes once "Implemented" (started substantially) you have an indefinite period to finish within planning rules. There are some powers the council could use to enforce completion but they are rarely used apart from in extreme circumstances.

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