Well-padded/soundproofed TV room (or hard-wired to wireless headphones) and/or well-soundproofed sleep rooms with every door in the house and every rafter in the roof and floor oiled to within an inch of their respective lives. Anti-slam mechanisms on the doors, all of them.
No doorbell. An anti-solicitor vaporizer raygun that nails anyone attempting to sell something or hang doortags without the proper code to enter the SFH's perimeter.
No telephone.
High-speed internet with a router that kicks any IP off that hasn't used it within 30 minutes.
No smoking near air intakes for the house.
Air curtains at each door, to keep the flying insects out.
Lightproof Warm-Window coverings on the windows in the sleep rooms. A little expensive, yes, but you'll save a ton on heating and a/c bills, plus it'll keep things quieter and a lot darker allowing those with the need to sleep in the daytime.
Whole house A/C with thermostats (Nest?) in the sleep room and public area.
Gun locker(s).
A room with tables and chairs for study, work, or whatever without the TV noise/distraction.
All that other stuff listed above would be nice, too.