You'd probably need to knock down the existing kitchen unless the foundations were adequate which they probably won't be.
Unless you are buying the kitchen from clerkenwell and have an architect called Julian pming the whole thing you won't get much change from 100k I would have thought.
I had a 6.1x3.5m ground floor extension done recently and excluding the kitchen which cost me about 8k , the work cost me 45k. I cut every conceivable corner known to man though where possible and the builder was cheap.
Loads of variables but £2k per sqm is likely your absolute bare minimum for a square box, no fancy details, cheapest materials, simple electrics etc. from a keen builder.
£2500 is probably much more likely. And £3000 if you want the good shit.
You'd probably need to knock down the existing kitchen unless the foundations were adequate which they probably won't be.
Unless you are buying the kitchen from clerkenwell and have an architect called Julian pming the whole thing you won't get much change from 100k I would have thought.
I had a 6.1x3.5m ground floor extension done recently and excluding the kitchen which cost me about 8k , the work cost me 45k. I cut every conceivable corner known to man though where possible and the builder was cheap.