Glass Rooftop Penthouse, London, United Kingdom

A penthouse apartment may have additional exclusive features not found in the majority of apartments in the building, such as a private entrance or elevator, or higher/vaulted ceilings. In buildings consisting primarily of single level apartments, a penthouse apartment may be distinguished by having two or more levels. They may also have such features as a terrace, fireplace, more square footage, over-sized windows, multiple owner suites, den/office space, jacuzzi, and more. They might be equipped with luxury kitchens featuring stainless steel appliances, granite counter-tops, breakfast bar/island and more.
Penthouse residents often have fine views of the city skyline. Access to a penthouse apartment is usually provided by a separate elevator. Residents can also access a number of building services, such as pickup and delivery of everything from dry cleaning to dinner; reservations to restaurants and events made by building staffers; and other concierge services.
Penthouses are usually luxuriously appointed, with meticulous interior design and the finest fittings, from high-end appliances to unique and costly flooring. For example: the top floor penthouse of Robert A. M. Stern’s 15 Central Park West 20-story apartment building in New York has the following luxurious features:
• Set on a rooftop terrace, the penthouse has a view of the midtown skyline and at its feet is the whole geometry of Central Park.