Premiums for property ‘perks’

How much of a premium are perks in a property worth today? Do they really add that much to the final price of a place? I realize this is a generalized question but I expect generalized answers.. some things I have seen highlighted as perks in open houses I have been at recently in Bk:
-views (of the manhattan skyline, parks etc.)
-brand new kitchen/bathroom appliances & surfaces,
-private terrace/roof deck
-parking
-gym
-doorman
-skylight
-southern exposure

and so forth..
Additionally for resale purposes is it worth upgrading an otherwise cookie-cutter residence with such perks?

-ah

By hazenyc |