Penthouse on 2 floors. The unprecedented views and outlook from the top of 1111 ATWATER are simply exquisite. The penthouses for sale in downtown Montreal are located from the 30th to the 38th floor. Enjoy breathtaking 360° views of Montreal, the mountain, the river, Westmount and beyond from one of the many windows in your residence. Anything is possible. The exclusive 1111 ATWATER penthouses can be customized to suit your needs and lifestyle. Leaving each personalized living space second to none. Many remarkable leisure areas are available exclusively to the 25 owners of 1111 ATWATER.