The former Hotel Wales in Carnegie Hill completed. for interiors of private residences and private jets including Boeing BBJ 747-8s) and real estate development firm Adellco. Originally built in 1899, the historic building was shepherded through Landmarks Preservation. Landmarks allowed the construction of a new-build Penthouse above the original structure, now on the market for $21.5M and setback from street sight lines. Corcoran Sunshine Marketing Group has the listing. Furnished by Pembrooke & Ives, the decor of the five- bedroom mansion in the sky, with five full baths and two striking powder rooms, is serene and sophisticated. The turn-of-the-century structure at 1295 Madison Avenue offers an exceedingly rare opportunity to own something brand new within the historic district. One of the standout elements of this master-of-the- universe abode is its massive private rooftop and wraparound terrace spanning 3,114 SF across two levels with an outdoor kitchen complete with a wet bar, a fireplace, and a butler’s pantry. The Penthouse features an elegant entry gallery, with a dedicated elevator and curved stair to the roof terrace. This leads to a gracious corner great room with an elegant fireplace, coffered ceilings, captivating southwestern corner windows, and terrace access on two exposures through grandly scaled French doors. A sun- filled windowed eat-in-kitchen features white lacquer cabinetry designed with an Art Deco-inspired geometric relief pattern and inset stainless steel and white oak details offset by crystal gray calcite slab countertops and backsplashes. You step into NYC history as you enter the gorgeous lobby with coffered ceilings, a custom walnut and marble concierge desk, and antique mirrored walls. Only 15 years ago, the hotel was the hotspot for celebrities to primp prior to their grand arrivals at the Met Ball.