feature is the tetrastyle Ionic portico. The interior are equally fine, the most impressive being the staircase at the centre of the building, with its glazed dome and the upper floor is surrounded by Scagliola Corinthian columns. The main rooms have fine plaster ceilings and marble chimneypieces, these are the library, dining and drawings rooms. The small boudoir has a shallow apse screened by two Ionic columns of Scagliola imitating Lapis lazuli. Holland also designed the service yard behind the house with the laundry, dairy and stables as well as the entrance lodge to the estate in the form of a Triumphal arch. In 1788 Holland continued the remodelling of Broadlands in Hampshire for Henry Temple, 2nd Viscount Palmerston started by Brown. The exterior was re-clad in yellow brick and a three-bay recessed Ionic portico added on the north front, a tetrastyle Ionic portico was added on the south front, within he added the octagonal domed lobby, also by Holland are the ground floor rooms on the south front library (Wedgwood room), saloon and drawing room, and on the east front the dining room, all in the Adam style. Carlton House Holland first major commission for the Prince of Wales, later King George IV, was his celebrated remodelling of Carlton House, London (1783 – c. 1795), exemplified his dignified neoclassicism, which contrasted with the more lavish style of his great contemporary Robert Adam. Carlton House was his most significant work, built on a slope, the north entrance front on Pall Mall was of two floors, the south front overlooking the gardens and The Mall was of three floors. The large hexastyle Corinthian portico on the north front acted as a porte-cochère, after Carlton was demolished the columns were reused in the construction of the National Gallery by the architect William Wilkins. The principal rooms were on the ground floor as entered on the north front. The various floors were linked by the Grand Staircase, built c. 1786, this was one of Holland's finest designs. Carlton House was demolished in 1827, other significant interiors by Holland were the Great Hall, (1784–89), and the Circular Dining Room (1786–1794). After Carlton House was demolished many fittings including chimney-pieces were reused by John Nash in the construction of Buckingham Palace. Marine Pavilion, Brighton Holland is perhaps best remembered for the original Marine Pavilion (known as such from 1788) (1786–87) at Brighton, Sussex, designed for