Queen Mary's House. - Credit: Polly Hancock The future of the Queen Mary's House site in Hampstead remains unclear, but a document which could pave the way for 150 homes is expected to be published this summer. The Royal Free NHS Trust, which owns the site, has been looking to sell since 2018, but local groups are concerned at the potential for "unaffordable mansion flats". The former-hospital site, in Heath Street, is currently home to key worker accommodation. In February 2020, Camden Council consulted on a draft site allocations local plan (SALP) – a planning document which would designate the area as space for 150 homes.