White Young Green has appointed David Rollason as regional director at the new central London office in the Strand.
Jan Pietrzak has joined HOK International as vicepresident and head of office design.
Avanti Architects has moved to Top Floor,361-373 City Road, London EC1V 1AS, tel 020 7278 3060, fax 020 7278 3366.
Magyar Marsoni Architects has moved to 146-148 Cromwell Road, London SW7 4EF, tel 020 7373 8005, fax 020 7373 8006.
US Designers has appointed Yvonne Kirk as head of marketing and business development.
3D Architects has moved to Whitsundoles, Broughton Road, Salford, Milton Keynes MK17 8BU, tel 01908 325230, fax 01908 325231.
Steve Irving, director of research at FaberMaunsell, has been appointed a fellow of the Royal Academy of Engineering.
The West End offices of Dunlop Heywood Lorenz have moved to 10 Queen Anne Street, London, W1G 9LH.
The Institute of Planning Supervisors has appointed Hugh Henderson as its new chairman.He replaces Sir Mark Russell, who held the post for five years before his retirement.
Hoare Lea Consulting Engineers has appointed Eduardo Urinovsky as a senior partner.
lSend details of changes and appointments to Victoria Huttler, The Architects'Journal, 151 Rosebery Avenue, London EC1R 4GB, or e-mail victoria.
huttler@construct. emap. com