Building on top of existing single storey extension.

Hi Helen, Generally most single storey extensions would have foundations adequate to accomodate an additional floor, however, this is all dependant on the age of the cottage. Period cottages were generally built on just a slab which would then require underpining and therefore be costly. I would to ensure the budjet is within reach contact a local engineer or surveyor, who will ask for a small trial hole to be dug to expose the foundation and then offer guidance with regard the requirement of any foundation or the capibility of the existing foundation. This is the main point on such a small development. Two storey would require planning and also check if you are in a conservation area or is the building listed.

Hi Helen, I don't know where in the UK you are. I'm in Glasgow . You will require building warrant and probably planning permission to carry out your proposals. Best way forward is contacting someone like myself who can advise you on the practicalities of the works Ian

Hi Helen It really depends on the make up of the foundations of the existing extension, you will need to have a trial hole dug to see if the foundations go down deep enough and are strong enough for a second storey, if the extension is recent enough in most cases they would be sufficient as architects / structural engineers usually seem to go well over the top on footings etc. You would need planning consent, if any of the neighbors have done the same should be no problem Access on to the new planned area would be fine, as I would expect you are taking the wall down or window out to extend your bedroom

Hi Helen It depends on a few factors 1. is the foundation to the existing single storey enough to take a second storey. ( you would have to dig down to see how far the foundation go). 2 accesses to the second floor extension. 3 planning consent. Hope this helps Many thanks Olly