what kind of music/arts school is it? Obviously as you will presumably have people coming in it's important that you avoid any trip hazards so this must be a nightmare for you!.. The only solution that i can think of, other than biting the bullet and sorting the floor out, would be to use the straight lines you have - the walls. I would get tables that can fold out from the walls (not sure how to describe them but they are attached to the wall with a hinge and fold out and legs fold out onto the floor but the main support comes from the wall) and then for seating go with firm bean bags with the leathery type fabric that you can wipe down easily. To lighten up the space, large mirrors will reflect the light coming in from the window, some spot lights in the ceiling or floor might be a good idea. Matthew Decorator's idea of lino is very good - my mum had an uneven floor in her kitchen and the builder simply plastered over the floor to make it level and then put lino down on top of her existing tiles which would have been costly to take up. I hope it goes well for you!

Hi Lee, No problem : ) With the LED tape, it depends upon how happy you are with soldering : / The tape can be cut at set marked places. It is then possible to solder wires on at these points and then extend the tape. Personally, in your case, I wouldn't cut the tape yet but wait until the integrated dishwasher arrives. Depending upon the model of the dishwasher, it may be possible to fit the aluminium extrusion to the underside of the units and run it past the dishwasher without the door catching. If this isn't possible, you may need to cut the tape and use a joint to fit the extrusion to the plinth under the dishwasher. If you use a slightly deeper extrusion, you can mount the extrusion onto the plinth under the dishwasher by putting the double sided tape onto the side of the extrusion. I think that I probably need to do you a drawing of this to show you what I mean! Do you know which model of integrated dishwasher you're going to fit? Can you remind me where in the country you're based? With the projectors, I've heard of Benq but haven't seen either of the models in the flesh. Are you going to be using a screen with them or just beaming onto a wall? With a screen, the brightness of the projector isn't as important as the screens have a higher 'gain' than a white painted wall - meaning more of the light is reflected back to you. You will also need some way of blackening the room out as this will improve the image quite a bit. We have a projector at home after getting rid of the TV. We found that it totally changed our viewing and gaming habits. The lounge is now dark purple (with the white room we had before, the reflections off the side walls were quite noticeable) and we have thick curtains over the window. You won't regret gaming on a projector : ) We use ours mainly for Skyrim : ) Projectors don't hold their value very well, (we bought ours used), but there should still be bargains to be had with new ones. If you can't get to see one in the flesh, then try to find one that's reviewed well and buy from a shop that will either let you demo the unit or has a good returns policy. We have a JVC X-7 which we are very pleased with. For a surround sound system, do you want the speakers too or just the processor? It may be easier to go through this on the phone. My numbers on my profile : ) Thanks Peter

Tracey, those are encaustics which tend to be 18-20mm in depth, your wood will most likely be engineered ply if you have underfloor heating and depths vary 12mm upward. If one or the other substrate needs to be built up to accommodate the other that is possible. Be aware there will be some movement between the two, more so if you are using long boards, less with parquet, so consider how best to deal with any movement or expansion between the two. There are plenty of products available for this. Make sure your encaustics are sealed correctly. You could also find the cleaning regimen of the two finishes may be very different. Lithoflin for encaustics - and oil/wax for an oiled floor, that's not a great combination, so perhaps an easy maintenance wood might be better in the long run.

@Victoria - Many thanks , Can you please tell me if the special board was put on top of the floorboards or on top of the joists ? @Nathan Oliver I have heard about Omnie TorFloor and seen a few videos as well. Do you know how much they might cost per Sqm ?