The building survey report landed yesterday and it makes for grim reading. It's looking like we may need to pull out.
An accumulation of many different issues, topped off by a catastrophic one (at least in my eyes). The extension which was formally the garage and is now the kitchen, does not meet current building regs and is technically not habitable. It's built out of a single skin of brickwork, with missing sections or no insulation at all, missing timber inside and possibly no fireproofing. This is suitable for a garage or store area but not a habitable area such as a kitchen. The surveyor has indicated that the property would not be a suitable purchase if the extension doesn't have planning permission, which unfortunately it doesn't. Searches revealed no planning permission a few weeks back, but I honestly didn't expect there to be serious construction issues also.
Aside from the obvious issues with our mortgage offer, I'm not sure how we can even proceed forward. It'll immediately need the kitchen ripping out and then structural changes of some sort made to ensure it meets current building regs so it can be deemed habitable. This combined with all the other issues, such as a flat roof that needs replacing immediately, damp in various rooms, lintel replacements, re-pointing and failed glazing, I just don't think it's worthwhile pushing on. We'll stand to lose about £1k if we pull out now.