The charities, which include the Iraqi Association, Naz Project London and the Eritrean Association, are waiting to hear about Hammersmith & Fulham Council's plans for Palingswick House. The 19th-century building has hosted charities since the 1980s.
Peter Okali, chief executive of Community and Voluntary Sector Association Hammersmith and Fulham, with staff from other charities in the building) said the charities currently saved about a third in letting costs by renting from the council. A council spokeswoman said no decision had yet been taken on the future of the building.