I have an existing one storey extension which I would like to build upon but the foundations are insufficient.
I would like the minimum amount of disruption to life as this extension contains kitchen etc.
The existing extension has two rooms on either end which are non essential and I was wondering whether these could be partially demolished to allow some deep corner foundations to be made. Then pillars could be used and a large joist to span the existing extension. Further joists attaching to the existing building.
Possible but dependant on loading and ground conditions as to whether its economical. Nothing on a building site is ever straight forward so do not go into a project like this thinking there will not be complications. There always are. The only person who can give you a difinitive answer on this is an architect on site.
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