Ealing borough covers several distinct areas, each with a different dominant housing type and different structural characteristics that affect beam design, padstone sizing and foundation assessment.
W5 and W13: Edwardian semis (Ealing Broadway and West Ealing)
The large Edwardian semi-detached properties that line the roads off Ealing Broadway and through West Ealing are among the most structurally consistent housing type in the borough. Built between approximately 1895 and 1914, these properties have solid brick construction, usually two-leaf English bond on the external walls, and ground floors carried on suspended timber joists. Ceiling heights are generous, loft spaces are large, and hip-to-gable loft conversions are the most popular structural project type in this area.
The ground-floor wall between the front reception and the dining room is almost always a load-bearing party wall carrying the first-floor joists. Open-plan kitchen-diner projects in these properties require a carefully sized RSJ with padstones into the solid brick piers on each side of the opening. The wall thickness is typically 225mm or 275mm in these properties, which gives adequate bearing length for standard padstones. We confirm the construction from photos before specifying.
W3 and W7: Victorian terraces (Acton and Hanwell)
Acton and Hanwell have extensive Victorian terraced streets, many of which have been converted to flats over recent decades. The conversion history of these properties creates structural complexity: walls may have been altered, beams inserted, floor levels changed, and in some cases structural elements removed without Building Control approval. Before specifying any new structural element in a Victorian terrace in Acton or Hanwell, we review the available information to identify any previous alterations.
Party wall issues are more frequent in the Acton Victorian terrace stock because of the density of flat conversions. If the party wall between two converted flats is being altered, Party Wall Act obligations apply separately from Building Control requirements. We do not provide Party Wall Awards ourselves, but we can produce the structural drawings that your Party Wall Surveyor will need alongside the award. RSJ calculations for Acton and Hanwell Victorian terraces start from £245.
UB1 and UB2: Southall interwar terraces
Southall's housing stock is predominantly interwar terraced streets built between the wars, with a different construction approach to the Victorian and Edwardian properties elsewhere in Ealing borough. These properties use cavity wall construction rather than solid brick, with inner leaf blockwork that has different bearing characteristics from solid brick. Padstone sizing changes accordingly.
The ground floor slabs in many Southall interwar terraces are solid concrete rather than suspended timber, which affects chimney breast removal calculations: the chimney stack foundation at ground level must be preserved or a new load transfer arrangement provided at ground floor level as well as the upper floors. We include this check as standard for all chimney breast removal calculations in Southall properties.
UB5 and UB6: Greenford and Northolt 1930s semis
Greenford and Northolt were developed predominantly in the 1930s as London expanded westward along the Piccadilly and Central line extensions. The housing is mostly semi-detached with hipped roofs, built in cavity brick with concrete or suspended timber ground floors. The hipped roof design makes hip-to-gable loft conversions very common in this area: the conversion replaces the hipped end with a vertical gable wall, extending the ridge and significantly increasing usable floor area.
Extensions on Greenford and Northolt semis frequently extend into the side return plot that separates many of these properties. London clay ground conditions in this part of Ealing borough mean foundation depths for extensions need to account for clay shrinkage and tree proximity. We advise on the foundation specification at quoting stage and include it in the fixed fee where the information is available from drawings and site photos.