Hi everyone, I'm just looking for some advice on what my options are please. I entered into a building contract with a builder under the understanding that my house would be built on a raft slab, but since signing I have been told they made a mistake and the engineering was actually done on a wafflepod slab. My contract states slab as per engineering, however at the time I signed it I had been told in an email that the engineering required a raft slab, and given the costs associated with that. The energy report was completed (by an assessor organised by the builder) on the basis of a raft slab. I had also requested a raft slab in the quoting process. Whilst looking at some documents for the permits application, I noticed a reference to a 400mm waffle pod slab, which obviously rasied some questions. On speaking to my builder, so far they have basically said oops we made an error, the number we gave you was for a wafflepod slab so it will probably cost you more to go to a raft slab.
Do I have any recourse here? It seems very unfair to me that I have signed the contracts being told that was the costs for a raft slab and now they are saying otherwise. A brief chat to Consumer Affairs today suggested that the builder is bound under the Domestic Building Contracts Act (1995) to take due care when determining the foundations and cost associated with them, and the builder is at fault, but I am not sure how to approach this. Any suggestions would be very gratefully appreciated. I'm happy to give details from my soil report, or anything else that will help.