A garden flat is a self-contained unit on the ground or lower ground floor with direct access to a private garden or yard. In Camden, Islington, Westminster and Hackney, garden flats are common in converted Victorian and Edwardian villas, with bathrooms and kitchens frequently below street level. Drainage characteristics often require pumped systems such as macerator units or full pump stations because gravity flow to the main sewer is not possible at lower levels. Common issues include pump failure leading to internal flooding, surface water flooding from inadequate yard gullies and back-pressure into shower trays during heavy rainfall. A non-return valve is often fitted on the connection to the public sewer to prevent sewer backflow during storm surcharge. CCTV surveys and pump servicing are essential maintenance routines for garden flat owners and landlords.
Garden flat (basement level)
Ground or lower ground flat with access to garden, often with pumped drainage.
