139-141, PARK LANE W1

139-141 Park Lane is a block of flats built between 1913 and 1919 by Frank Verity. It features Portland stone ashlar with a rusticated ground floor, constructed on a steel frame, and has a slate roof. The building occupies a prominent corner site at Marble Arch, designed in Verity's sophisticated Parisian Beaux Arts Louis XVI style. It stands seven storeys tall, including a mezzanine and a dormered mansard roof.

The facade facing Park Lane has eleven windows, with the two end bays slightly advanced, single bay inset quadrant corners, and three window returns to Oxford Street and North Row. The channelled ground floor includes a central portal supported by Doric columns. The ground floor windows are three-light casements, deeply recessed under segmental arches. The mezzanine windows are set on a sill course and flanked by large elongated console brackets that support an iron balcony on the first floor, which has stone dies.

The windows on the first, second, and third floors are vertically linked within the same reveal and topped with cornice lintels over the third floor. The fourth floor windows echo the mezzanine style with similar consoles supporting a cornice-balcony. A deep projecting cornice crowns the attic storey, which is topped with a cast iron balustrade. The advanced end bays feature stone-faced cornices and blocked upper attics, as do the returns.