Plan this job
The decisions that
shape the work.
The finished room layout sets the socket, lighting and appliance positions. The existing installation and builder’s programme determine any associated electrical work and when routes need to remain accessible.
01Use and final layout
Use the drawings to show how each room will be furnished and used, including kitchen equipment, appliances and lighting groups. Settle the electrical positions around that layout before cable routes are fixed. The planned equipment also helps establish the capacity the extension will need.
02Existing installation and supply
Share any existing electrical information and the equipment planned for the whole project. Additional demand or new circuits may require associated work to the existing installation. The assessment should establish what is needed; a larger extension does not automatically mean a full-house rewire.
03Timing the work with your builder
Share the builder's programme, the dates when routes will close up and any heating or alarm requirements. Agree who provides each part of the work, including fire-stopping and repairs to finishes. Coordinate first fix, final fitting, power interruptions and electrical records with the wider build.