EICR certificates in Castelnau, SW13

North Barnes is the census neighbourhood behind the Castelnau page, with 4,177 households. Semi-detached houses are its most common home type, at 30% against 19% across London. Purpose-built flats follow at 28% and terraces at 24%. Council tax records date 24% of homes to 1919 to 1939 and 17% to 1973 to 1999, with only 3% from 2000 or later. Houses from before 1939 will have been rewired at some point, some more than once, so their installations often mix work from different decades. An EICR checks how those pieces join and how well each is protected.

Size is what stands out. 37% of homes have four or more bedrooms, about twice London's 18%, and 57% of households own their home. In a house this size, the installation may extend well beyond the original rooms: a loft room, a basement, a rear extension. Each part needs testing, and any second consumer unit is part of the inspection. If the house has been split into flats, the picture changes, with each flat usually having its own meter and consumer unit and a landlord supply for the shared parts.

Large houses take longer to test, so the number of bedrooms and any additions help plan the visit. In an older house, the meter and main switch may be in a basement or cellar, and the electrician needs clear access to them. Certificates from a loft conversion or extension show what was added and when. Remedial work the report requires must be finished within 28 days, or sooner if the report says so, which is easier to manage when the house is empty between lets. No buildings within 300 m of Castelnau are listed.