The under-development Four Seasons Hotel & Private Residences One Dalton Street, destined to be New England’s tallest primarily residential building, will be visible on Boston’s skyline this fall, according to a representative of developer Carpenter & Co.

Construction of the 61-story Back Bay tower—which will be 742 feet at its highest point and 699 feet at its highest habitable spot—is proceeding at the pace of about one and a half floors a week.

These recent construction photos come courtesy of Carpenter & Co. A rendering of the finished product is at the bottom.

One Dalton will include 160 ultra-luxury condos on floors 26 through 61 and 215 Four Seasons hotel rooms.

Construction is supposed to wrap in the last quarter of 2018, though condo sales have already started.