Macarthur House is a heritage-listed former residence and school building and now offices at 8 Melville Street, Parramatta, City of Parramatta, Sydney New South Wales, Australia. It was designed by James Houison (1850s house), Arthur William McKenzie Mowle (1923 wings) and David Sheedy (1981-2 works) and built from 1855 to 1856 by James Houison. It has also known as Morton House and Pemberton Grange. It was added to the New South Wales State Heritage Register on 2 April 1999.