Plan electrical decisions before walls and floors close
Guidance reviewed 13 September 2026 · Planning information for homeowners in England
A renovation is an opportunity to review the electrical installation and how the household uses each room. It does not establish that every existing circuit must be replaced. Ask a competent electrical professional to assess the installation and explain the recommended scope, limitations and further investigation needed.
Start with the existing installation and proposed demand
Gather available inspection reports, circuit information and planned changes in use or equipment. Record future needs as well as the immediate scope, so the designer can consider them together. Ask which decisions affect the distribution arrangement, routing or space needed for equipment.
Keep electrical safety and design decisions with competent specialists. This guide supplies briefing questions; it does not explain isolation, testing, circuit design or installation.
Coordinate room use before first fix
| Room decision | Coordinate with |
|---|---|
| Lighting and controls | Furniture layout, daylight, switching preferences and access for replacing components. |
| Sockets and equipment | Actual intended equipment, furniture, desk/work areas and manufacturer requirements. |
| Kitchen and bathroom positions | Current room drawings, fittings, ventilation and service routes. |
| Data and controls | Equipment locations, user needs and responsibilities for any separate systems. |
| Bespoke joinery interfaces | Measured drawings, lighting/equipment provision and maintenance access. |
Agree the compliance and notification route
Approved Document P covers electrical safety in dwellings and explains relevant notification, inspection, testing and information requirements. Ask the electrical professional to confirm what applies to the proposed work and who will provide the required records. Do not infer qualification or scheme registration from a general building-service description.
Set the decisions that release first fix
Approve the coordinated room layout before positions and routes are fixed. Ask the contractor to include relevant specialist checks before concealment and to identify any work that cannot proceed without another design decision. Keep changes to positions or equipment in the drawing and change register.
For a flat, establish shared-service and consent constraints before assuming a route can pass through retained parts. In a house, coordinate retained fabric and any relevant heritage constraints with the design team.
Collect the installation records and user explanation
Agree the handover document list before completion and name the issuer of each item. Ask for the relevant certificates, circuit information, installed-equipment instructions and a demonstration of controls. Record outstanding actions and keep the final layout with the property records.
A finished socket or light does not show the work concealed behind it. Use the agreed inspection and test evidence, then follow the installed system’s care requirements.
Take the next step with a planning template
Open the editable HTML worksheets, print them or download a copy. No enquiry is needed to use them.