Penthouse 4B, a luminous duplex with 4 bedrooms and 2 baths, measures 1573 sq. ft. On the main floor there are three bedrooms and one bath. On the top floor, there is the primary bedroom with ensuite bath, and two private terraces, totalling 439 sq. ft. The combined common charges and taxes are only $911/month. That’s less than half the cost of most similarly-sized units. Natural light floods thi...