I'm extending my house and reconfiguring most rooms so have the perfect opportunity to get in cables and some home automation. I'll get into some other areas in a moment, but my most basic need is to install a multi-zone heating system and lighting. The heating includes radiators, heated towel warmers and under floor heating (mostly water based, but 1-2 rooms likely to be on electric as they are upstairs and water based is downstairs and am not sure where manifold would go upstairs). Separately, I installed Alexa in most rooms of my existing home last year and am enjoying some of the capabilities (e.g. calling kids in their rooms) and have started to use for my home cinema with Harmony Elite & hub (despite using more advanced Nevo systems for many years prior) and like the idea of voice integration, but am also open to changing this. I have many Apple devices, so also expecting phone and/ or iPad to be possible control device. For heating, I initially looked into over 1 year ago and the main options that stood out to me as a standalone system were Honeywell Evohome, Heat Genius or Tado. I understand there may also be some more, but these systems I mention only deal with the heating. My initial question is can I get a dedicated heating system and separate lighting system and then integrate them together with something else on top (possibly Alexa, but also open to anything else), or do I need to plan everything with a single system from the outset (i.e. same system for heating and lighting)? Are there any particular advantages and disadvantages of the 2 options (assuming both are valid)? Can anyone recommend some good heating and lighting systems? For lighting, Lutron has always been a familiar name to me and looks great, but don't really know how to compare and what are the other alternatives. Aside from heating and lighting, I also want to take the opportunity to improve my home cinema setup in my lounge (which will be a completely new room as existing lounge will become the kitchen). I want this setup to include: 1. Ceiling mounted projector screen with remote control to open 2. Ceiling mounted projector (not sure if I should try to get something that hides in the ceiling and drops down when in use) 3. All power, video and audio cables hidden for TV/ projector/ speakers As the lounge will be covered in underfloor heating, I will not be able to get under the floor in future as I have done in past in existing areas of house when I have wanted to change cables. What advice do you have re how best to install cables? Should I be aiming to install ducting everywhere (up wall to TV, in ceiling for projector and underfloor for speaker cables) so that I can change cables in future? Just to add that I have an area under my stairs centrally located in my house that already acts as a hub for my cabling (TV, phone, networking, satellite TV, cable TV, amps, blur ray player, etc), but it is not on an external wall. I plan to continue using this area as hub and want to ensure I can get any future utility cables to it (e.g. if Virgin Media or Sky later need a different cable). I should also state that I am already 1 month into the build, so don't have lots of time to work out what to do, but everything is open at the moment and will be for several weeks yet as build still has months to go. As part of heating system, I am also currently deciding which boiler to buy but have decided on an unvented cylinder and system boiler. Anyway, I've now written a lot of questions. Hoping someone can help with some guidance. Thank you in advance.