Hi Daniel, Try Storm Windows - they specialise in secondary glazing and working with historic and listed buildings, and have done a number of national trust properties. Depending on your budget, it might be worthwhile only focusing on the principle habitable rooms to start with. You could try plastic film on other windows - I recall that this is self adhesive and sometimes uses a vacuum to suck air out to form airtight seal. One final option is to look at a system called Magnaglaze which adheres thin acrylic sheets to the window frame via magnetic strips. All of which is reversible so should not have LB implications. However, the first suggestion (Storm) will have best acoustic and thermal properties, so I'd start there! Good luck with it all, K

Victorian plumbing have loads of black bathroom fittings. https://www.victorianplumbing.co.uk/bristan-prism-inline-dual-control-shower-pole-w-diverter-kit-black https://www.victorianplumbing.co.uk/taps?FT=5013&filtSeq=Colour&Sort=BS Matt black seems pretty popular at the moment so I'm sure other online bathroom stores may sell them too. Victorian plumbing is reasonably priced too, as I've been looking and comparing lots of sights and prices for my own bathrooms. Good luck :)

Christine, wow, that's a ton of ideas, thank you very much! We already thought of these sockets with USB included, and will definitely get those for all desk and bed areas. It's such a small improvement but I am so excited about it already! Also love your suggestions for hiding cables. I hope we won't have to (rather have all cables in the walls and have them come out where we want them to) but if that's not possible, in particular around the fireplace area then this will be very valuable, so thank you. Not so concerned about soundproofing the floor - we live in a similar flat right now, hardwood floors and underfloor heating, and we walk around in socks with no issues. It is more the kids' bedrooms that are facing the fireplace that I am concerned with. Son is playing online games with kids from around the world and well, yes, there is a lot of screaming that comes with that. Sitting right in front of the doors won't be very relaxing for us when he yells on top of his lungs "FXCK YOU!!!" (and yes, I do tell him off). I love the partitioning, wall slider, shelves gallery - definitely something to investigate later. I think we may have to move in first to get a feel of the space. I don't want to cram it with furniture and create a maze if not needed. But it may help regulate the space and make it cosier. As for the TV placement, if you have a look at the photo I just shared, we are thinking about either having a TV shelf with a smaller TV (not 55 inch as we have now) or maybe a bracket or pole solution which we mount to the side of the fireplace if the brickwork (I believe it's bricks, will need to check) does support it. This would allow us to move the TV set around so that we can watch from different angles. But when looking at the fireplace as it is right now I think the architect envisioned the TV mounted right there on top.

Hi Minnie- thanks- excellent suggestions. I will look for a brass vanity with a depth of 15-18cms in that case to be positioned over the sink- it will tick many boxes ( storage, shaving area) and I won't really need another mirror in that case. I think however, based on my search so far, it's going to be challenging finding one that is only that deep ( I only have 18cms from the wall till the windows edge) If I don't find any, would you have any other suggestions to accommodate some storage and a mirror in the room? Thanks for your time and suggestions. Will get on with my search now ☺️