• 1817 Appointed architect to complete design work on the
Old College, University of Edinburgh, on the basis of his proposals to complete the plans originated by
Robert Adam. The building was completed around 1831. • 1818 Commissioned to design
Dollar Academy: the original building which he created is now known as the
Playfair Building • 1818
City Observatory,
Calton Hill • 1820 East New Town (Calton Hill), Edinburgh (including
Regent,
Carlton and
Royal Terraces), built between 1821 and 1860 • 1821–24 Royal Terrace, East New Town, Edinburgh only completed in 1860 • 1822 Commissioned by the Institution for the Encouragement of Fine Arts in Scotland. The building was opened in 1826 and is now the
Royal Scottish Academy Building, Edinburgh • 1823 Royal Circus, New Town, Edinburgh • 1824 in collaboration with
Charles Robert Cockerell, designed an exact replica of the
Parthenon which was to be built on top of
Calton Hill as the
National Monument, Edinburgh. Due to lack of investment it was never finished. • 1825 Regent and Carlton Terraces, East New Town, Edinburgh, completed in the 1830s • 1826
John Playfair Monument, (he was William Henry's uncle), Calton Hill, Edinburgh • 1827 – 1828
St Stephen's Church, St Stephen's Place,
Silvermills, Edinburgh • 1829
Drumbanagher House, Armagh (demolished);
London Road Gardens, Edinburgh • 1830 – 1832 For the
Royal College of Surgeons of Edinburgh, Surgeons' Hall, Nicolson Street, Edinburgh • 1831
Dugald Stewart Monument, Calton Hill, Edinburgh • 1833
Brownlow House, Lurgan, Northern Ireland • 1835
Kirknewton House, West Lothian • circa 1837 renovations to
Floors Castle, outskirts of
Kelso, Scottish Borders • 1846 – 1850
New College, Edinburgh • 30 August 1850
Prince Albert laid the foundation stone of the
National Gallery of Scotland, adjacent to The Royal Scottish Academy. • 1851
Donaldson's College, Edinburgh • 1859 National Gallery of Scotland opened to the public two years after Playfair's death. ==Gallery of architectural work==