This might be long!
We have just finished 2yrs of renovating. Structurally its finished, but now need furnishing, a garden, curtains- I could go on.
Are you living in the property currently, or planning to buy it? If it hasn't been lived in for 2+yrs, there is a little known government scheme to get it back into a livable home with reduced VAT on repairs.
Will you try living inside the house whilst renovating or elsewhere? We lived in a static van in the garden. No dust and less noise than the main house. If no space for a van, could you use a garage?
You can have a draftsman draw up plans, if you don't need an architect and have a fair idea of what you want.
We put in underfloor heating which is great. We also looked into radiators which are hidden behind the skirting boards- so nothing on the wall. I can't recall why we decided against it- but its an alternative you might not be aware of.
Keep your neighbours on side! If I knew we were expecting noisy work, I'd text them to warn them. They'd let us park on their drive when we had lots of trade vans on site or large deliveries and we are all still talking!
Will you be doing the renovations yourself or know local trades people? We hadn't lived in the area beforehand, but did have a few recommendations. We found that once we found good trades people, they would usually recommend equally good ones, that had often worked together.
Plus sockets- twice the amount you think you'll need. Put them at least knee heigh up the walls, not down by the floor. I vaguely think the electrician told us that in new builds now, they legally have to put them XX cm's up the wall for disabilities. It also saves bending down!
DH installed a system called home assist, which means can turn lights and certain switches on and off remotely. We installed dimmer switches and lights everywhere. There is a mode, so say, after 10pm, the bathroom lights are only at 50% brightness.
We bought tiles from an independent shop that mainly buys from Italy and Spain. They recommended a brilliant tiler. He said that often tiles from say tops tiles/B&Q can not only be wonky but not square, so many go to waste or break when being cut. Larger tiles can make a small bathroom look even bigger- plus less grout means less cleaning.
Happy to answer any questions you have.