Depends on the square footage of the house but in general.<p>I'd want a single closet/small room where I could put all the equipment for the media/entertainment, cable boxes etc. Then use IR extenders or better yet, one of those wireless remote control systems.<p>I'd do speakers in the ceilings/walls of most every room/area with zones and volume controls in them. Depending on the square footage, you may need multiple receivers to make it work nicely where everyone can listen to different tunes. Also, outdoor tunes have to be available too.<p>Wire the house for both wired network and of course wifi. Depending on budget and size of the house, fiber would be nice for at least interconnecting sections of the house.<p>Along the idea of the wireless remote system, turn an iPad into the house controller. Make life as easy as possible, something you could hand to your grand/parents and they would be able to push buttons and make it work. I have seen systems like this and drool at how nice it is, and it isn't like it is crazy expensive. No more 4 remotes or a "single" remote that works 95% of the way but takes a small training session to even turn on the TV.
I've thought about this often. I have the added experience that I've slowly gutted and remodeled every room of my house for the last 4 years so I've gotten an idea of what I want and don't want.<p>Network drops everywhere. Even in the ceilings of major rooms. 802.11N is great, but nothing trumps Cat5E over fiber.<p>In wall (or ceiling) speakers. atleast 1 in every room, 1 in the 2nd floor hallways. All with volume controls. All wired to a central network closet with multiple Airport Express inputs so the wife scan stream 1 music to the bedroom when shes dressing, and I can stream another station to the family room while I'm waiting.<p>Network closet should span 2 floors with future pipes into the attic and into the basement for new drops. Network closet is preferably close to the main family room TV for major components. Switches, routers, firewalls (i was a sys admin in a past life) can all go in here. Money willing, put network equipment in 2nd floor closet, tv equipment in first floor closet.
Do not underestimate the power of just simply wiring every room in the house with cat6. Instead of planning for every eventuality, you can just extend your house when you need to. Need a server rack - put it anywhere! Bought a new smart tv - just connect it to the open port!
Comprehensive security cameras outside<p>Integrated speakers (mostly in the bathroom, but through out the house and independently controllable would be nice).<p>This one just came into my mind today, but having a weather proof mic outside would be amazing, especially in conjunction with the built in speakers. I would love to have a natural rain/thunderstorm/birds played throughout my house (echoed from outside). Sure, windows are great but how often can you actually have them open.
Not really techy but, inspired by <a href="http://www.youtube.com/watch?v=f-iFJ3ncIDo" rel="nofollow">http://www.youtube.com/watch?v=f-iFJ3ncIDo</a>, I've always thought it would be interesting to suspend beds, tables and storage to the ceiling and then have a (rope+pullyy) system to only put the furniture in a room that you are actually using; freeing up the other space to walk/work/lie down. Plus it's probably real easy to keep clean.
Why not look to the Passivhaus standards to improve energy efficiency and reduce the house's environmental impact? Then the house would <i>be</i> a tech feature.
A tablet in each major room with a customisable UI that controls the following in each room:<p>* Lighting<p>* Heating<p>* Locks (windows & doors)<p>* TV<p>* Music<p>The one other primary feature I would want is an instant facetime type setup between each tablet so that you can communicate with others in the house without having to shout or get up off my lazy arse.