Electrical socket outlet distance from water source
300 mm
all socket-outlets are located at least 300mm horizontally from the edge of any sink or basin.
Electrical socket-outlets must be installed at a safe distance from sinks or other water sources to prevent splashes causing electrical hazard. A minimum clear distance of 300mm horizontally from the edge of a sink to the nearest part of a socket-outlet is typically required in domestic installations.
Basis in regulation
BS 7671
Read the source
How to check it on site
Verify that all socket-outlets are located at least 300mm horizontally from the edge of any sink or basin.
Common failure
Socket-outlets are sometimes installed too close to sinks, increasing the risk of water ingress and electrical shock.
Last updated 28 August 2026. This is our editorial summary of publicly available regulation, not building control approval or a warranty determination.