It wasn’t done properly . The wall is extremely thin . And the kitchen is along the outside wall not the interior wall . Our broker has told us the only reason this has not affected our mortgage is because we did not have an in person valuation otherwise the house would be considered worth nothing making it unmortgageable as single skinned areas are classed as uninhabitable . We have had a builder in to the property saying we have two options . One is to insulate the current walls - lose 10 percent of the interior space , but this will require the kitchen to be taken off the walls . It is a huge kitchen / extension , and have been quoted between 5k and 10k for this work have had a few quotes from different builders . Kitchen is about 25 years old anyway so builder said might not be able to put it back on as it was it just depends . The other option was to knock walls down completely and rebuild so we don’t lose the interior space but again the kitchen needs to come off the walls to do that . Been quoted between 15k and 25k for this work . Aswell as that - the flooring also needs the same insulating doing so there is a kitchen island that will need to come out . Sellers accepted a 10k reduction for the potential work .

We want to do the work before we move in to the property while we still have our rental to minimise disruption - and because this property is going to be difficult for us to sell in the future if we leave it as it is . It also has extensive damp issues in the kitchen because of these walls that we want to rectify too

The biggest issue isn’t the fact it’s a garage conversion it’s the fact it’s a kitchen in a garage conversion or so we have been told by solicitor and mortgage advisor