I think it is plausible. Would make most sense in a community of buildings. Then your vendors get enough business to make it worthwhile and can charge a bit less. 

I serviced a lot of residential buildings when I owned my business. 2 buildings side by side were always better than one and another one a 20 min drive away. 

grayruby

I don't "really think" *anything* lol.

I was thinking about luxury in a non-traditional sense. I think this might be desirable even in a basic apartment complex sans floor to ceiling marble and windows.

You can make arrangements for these kinds of things anywhere you live for like 3-5k/mo. I'd guess doing it all in one building would provide some economy of scale so maybe it wouldn't be that expensive.

I think there are people who would pay. There might not be many of them though.

k00b

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saloon

There are luxury buildings that offer these types of concierge services. I used to service a building that offered services like this. I don't know about 2.5x the rent. If comparable rent for say a luxury condo building is 4k a month, do you really think people will pay 10k just to get all these amenities?