I am 47 years old and have been in a custom home for 16 years and I can tell you for sure if it was me I would save my money and build a 1000 sq ft simple square ranch house with nice outdoor kitchen and zero maint landscape and pay cash. All the stuff and add ons and bling I was for sure was important to me when I built is pretty much just a selling point now and I could easily do without any of it. I would much rather have the money and time to roam rather than be a slave to the 3000 sq ft empty nest.
They make tankless combi units. I put a Navien NCB-150 in my carriage house / detached ADU / AirBnB.A lot of really good ideas on this thread. A few of my suggestions, some of which have already been said, but I'd do long overhangs on the rafter tails if possible (3-4') which really help with keeping sun off the siding and keep water/snow further from the building. If you're in a cooler climate radiant heat is really nice and gives tons of flexibility with heat zones, for example I like my bathroom about 80 degrees, but sleep better with my bedroom about 67 or so. That's no problem with radiant. if you have extra bedrooms, you can turn the heat of completely in those areas. I do like the on demand (tankless water heater), but if doing raidiant there is no way I would because you can just have an indirect tank right off the boiler which you'd need anyway. Something that I don't think I've seen posted is the use of ICF (insulated concrete forms) from the footings to the roof. I don't think there's a better wall system available with other products and it offers advantages that are not possible with wood no matter how well you insulate. If water table permits, I don't understand why people don't do full basements because it adds so much square footage for not that much more cost. Related, if you do basements, pouring suspended slabs on attached garages doesn't cost a ton either. If zoning permits, planning areas to be used as an ADU (Accessory Dwelling Unit) and creating a separate livable area can be nice. My brother did this with his basement and rents it for $1300/month. He doesn't need the space and usually rents to a single professional and hardly even knows they're home except for he sees their car. You can use it as your own space if necessary or if you have house guests they're totally sperate and can stay for month(s) and it won't cramp your style.
I'm so glad I didn't have to get past the first page to see this. I work in the kitchen and bath industry and it's honestly the most important afterthought: living/aging in place. Wider halls and doors, backing for grab bars (or just install nice ones now and be done with it) quality lighting design, zero threshold doorways. Dont plan your home for tomorrow....make it place you'll be comfortable in for 30 years no matter the circumstances.I have an aunt that is paralyzed. Their hallways are one and half standard size, all doors are one and half standard and their light switches are lower so she can reach them from her wheel chair. I highly suggest contemplating each one of those. The hallways and doors are nice, even not being in a wheel chair.
Ability to age gracefully in the home is important if its your forever home. We kept this in mind designing my parents home i just built. Wide hallways, wide doorways, master bedroom on the main level etcI'm so glad I didn't have to get past the first page to see this. I work in the kitchen and bath industry and it's honestly the most important afterthought: living/aging in place. Wider halls and doors, backing for grab bars (or just install nice ones now and be done with it) quality lighting design, zero threshold doorways. Dont plan your home for tomorrow....make it place you'll be comfortable in for 30 years no matter the circumstances.
If OP wants some cabinet tips, I'm happy to offer what I know. Custom is spendy but if your shop is decent you can get some cool features. If you're not going custom, you can still get some neat additions.
Also, spring for Emtek (at least) on your door hardware...skip the home depot stuff. It's the only thing you touch in your house everyday and use for security
I use 1000 gallons of propane a year. Floor heat, hot water and cooking. 2000 square feet in USDA Zone 4a (cold climate). I keep the floor heat set at 67 in living areas and 60 in bedrooms. I can tell you that 67 is more comfortable with floor heat than a forced air furnace set at 70.For those who have done floor heating, how expensive is that to run?
New construction or remodel? And just under tile or are you asking about a whole radiant floor system? Ive only installed it in new construction situations personally and not a whole house. Its not crazy expensive to do a bathroom especially if you do it yourself, and you save on energy costs in the long run supposedly. The schluter kit i got for my bathroom was like $550 i think. Then you just run a wire for power to a metal box with flex conduit to the floorFor those who have done floor heating, how expensive is that