English basement
An English basement is an apartment (flat in UK English) on the lowest floor of a building, generally a townhouse or brownstone, which is partially below and partially above ground level and which has its own entrance, separate from those of the rest of the building. == Realty == English basements are sometimes rented out separately from the main dwelling, either by a single landlord who owns both portions of the building or by a tenant of the building who is subletting.