I think all these architects, designers, etc. read the same books.
Here, for upscale, Interior: stone and solid wood exposed beams
(cypress being one of the premiums) are favorites. Stucco exterior.
Quite a few arched windows & doors, rather than squared. Landscape:
Italian & Greek themes are popular... some western/ranch (USA), but
often a combo of different ones, for particular areas of the lawn.
For moderate housing, 250K - 500K, similar amenities as above, but
many of the homes are built 10' apart, in many subdivisions (as with
100K-250K homes)... no lawn to speak of. Packed in, this way, takes
away from all the expense put into the home, in my opinion.... It's
not a home, but simply a house.
For some with a bit of land, 2 - 5 acres in town or immediate
outskirts, the classic barn (smartly painted), for an outbuilding,
hasn't completely disappeared, yet, but its function is now for boat
storage, small tractor/mower, maybe a small flatbed trailer, air
compressor, misc storage, etc. .... electricity, plumbing....