We've just had our purchase of a house fall through and thinking of putting in an offer on this house (the other house we were going to buy was completely done - in terms of extensions etc). This is a lovely end of terrace but a bit tatty. I think the obvious thing would be to knock down the lean to and put in a side return and open up the kitchen-dining space (so no rear extension needed). Anyone have a rough estimate of how much this kind of project would cost? I'm not keen on the big bifold doors onto the garden on a Victorian house so maybe that would save some money. Thanks!