Building new house need advice on a dedicated room

Getting ready to build a new house, who would I consult to get plans to build a dedicated stereo room? Dedicated lines, size of room, sound proofing, etc. Please advise.
Be sure to place the entire foundation on seismic isolators prior to constructing the house. They will be very difficult to retrofit once the house is built.
How many times can the same question be asked?

In any case, has a whole section on it.
What's your budget. If you want the best, go with Riva. Don't ever use an installer or a regular contractor. Check out local brick and mortar audio stores for a referral, and do not make the mistake of using the store itself. Also, revise your forum query to include your zip code.
I would contact Art Noxon of Acoustic Sciences.
I'm also in the process of designing a dedicated listening room. Regardless of how you proceed I'd recommend getting the book Premium Home Theater by Earl Geddes so you're at least familiar with various design theories and approaches. Despite the name it's loaded with concepts and solutions that apply to a 2-channel listening room as well as HT. I bought a bunch of books on the topic and this one was by far the most useful and easiest to understand (at least for me). No matter which way you go you'll be glad you have an idea of how this should be done (and what shouldn't).

I spoke with some designers. They're expensive and I've heard results can be very hit or miss, and if it's a miss it's a really pricey one. After reading the Geddes book I feel confident enough (and I'm not a carpenter by any stretch) that I've decided to hire a contractor I know and trust to implement the construction techniques described in the book. In the end I'll save a lot of money and am fairly confident I'll have at least a very good sounding room (and if it sucks at least I know who to blame).

And I agree not to use a regular contractor. None of the ones I spoke to understand a thing about how to create a good sounding room. They all focus on how to sound "proof" so sound doesn't get out, but they have no idea how to design or build a room that sounds good on the inside. If you don't want to take my approach and/or don't know a good contractor I'd at least get a recommendation from a reputable high-end dealer for someone who specializes in this area who can give you references from past clients.

Best of luck and hope this helps.
I would agree with the posts above about getting as much education as possible before you start. My brother and I built a recording studio and there are many opinions about that topic. "Studio Tips" is a good source for acoustic information

You can spend a whole bunch of money chasing "theories". What we found is that having a room with the proper dimensions and acoustic isolation from other rooms and high quality construction techniques is key. Most contractors don't have the knowledge or desire to construct a proper space (too sloppy with air gaps for example). If you can help manage your room construction and are vigilant about using acoustic calk for air gaps, I think you will have success!
Call Bob Hodas.
His rooms at RMAF were extremly well done.
I agree with Soix's recommendation of the Geddes book. Don't let the title put you off - the chapters dealing with acoustics and room construction are totally applicable to two-channel.

If you'd like to engage a top-tier professional who is still affordable, I suggest award-winning acoustician Jeff Hedback of Hedback Designed Acoustics. His day job is designing recording studios (many of which are used by grammy-winning artists and producers), but he does work in the home audio world as well.