@GingerAndTheBiscuits I tried to get indicative costs before getting plans done and it wasn't successful. One builder came over and said send me the plans. Another builder that my neighbour used refused to come over until we had plans.
I should have drawn my own for that first step, as we didn't need planning for our work, just building control.
I know my builder now won't quote without a detailed spec of work. He said it takes him 2 weeks to cost each major renovation, so he wants to know that the potential client has skin in the game before he spends the time. Actually he just charged a prospective client £1k to cost a job without plans (at the client's insistence that he quoted now), but it's refundable if he wins the tender. They're so busy. I suppose it's similar to EAs insisting you're under offer before you can view properties.
Good luck!! Also, make sure you have a healthy contingency. Our material costs have gone up, but there's a fair bit of remedial work we didn't anticipate until everything was stripped out!! Joists running the wrong way, leaking pipes, pipes in a different position to expected, hidden public sewer access under a tiled floor and electrics that we thought were good, but wouldn't now pass inspection, so needed a major upgrade.
This is on a house that looked perfect and I thought needed only cosmetic upgrading and a bit of structural work to open up 😂
Good luck!! Recommendation on builder is really key to a successful project. Mine are on site every day, it's the same crew for the past 3 months. The labourers are all kind and tidy. And most importantly, they are really calm when I make last minute changes! The delays we've faced are primarily due to suppliers I've sourced. I couldn't fault them actually, which is a big positive and I'll use them again.