Planning an extension to knock through our current kitchen and make it a big open plan kitchen/diner/family room. The extension is 6m x3m and within permitted development so apparently quite a small project but it's still our life savings! We've just received the final building regs plans back and have been advised to start getting quotes.
This is where i am stuck! I just dont feel we have enough for the builders to quote so i've been putting it off since xmas 
Other than the plans what other info would i need for the builders to quote as accurate as possible?
Any other advice on what i should ask the builder for in the quote?
We're new to the area so dont really know many people to ask for recommendations for builders so have been looking online. I have a shortlist for builder to ask to quote but any other suggestions on how to find good ones?