Crescent House,

Clapham, London

Completed: April, 2014

Services: Mechanical, Electrical & Public Health, Sustainability & Building Physics

Sector: Residential

Client: Galliard Homes

Value: Circa £3m

A permitted development involving the conversion of an existing 1930s three storey office block into 36 flats, with the inclusion of a five-storey extension to the rear of the central core.

Originally a two-storey office used by the Union of Post Office Workers, the building was extended via the addition of a mansard roof in 1976.

The Role of FHP

Galliard Homes Ltd employed the services of FHP to provide mechanical and electrical design up to RIBA Stage E, with the potential to progress the project through to construction.


As a permitted development the existing building required refurbishment to the latest Building Regulations Part L1B, with the central core extension to be to Building Regulations L1A.

A number of options for the mechanical services to the dwellings were considered, including central plant supplying the whole site; however, individual gas boilers to the extended central core and electric wet heating to the existing wings was chosen as the way to proceed.

The existing drainage system was extensively expanded to allow for additional soil stacks to all flats.

"FHP are one of the key companies on our shortlist of MEP Consultants. They have worked successfully with us on several Galliard projects. Based on our experience to date with they are a great Company to work with."

Head of M&E, Galliard Group