So when we finally turned up at the house I was apprehensive to say the least. Our builder revealed the problem - a hole in the floor. Hmm. There was more. The hole essentially extended underneath the entire slab in the downstairs living area. Sigh.
Don't get me wrong, it's ultimately a good thing they found it under the layers of tiles they were lifting up, but a new slab won't be cheap and will delay things. Given we're being kicked out of our rental in a frighteningly short amount of time, delays are less welcome than ever.
On the upside, it's going to be cheaper to polish the new slab as the downstairs floor than it will be to have wooden floors, so I'm definitely going to get my polished concrete floors downstairs!