A socket plan is easiest to change before walls are closed, cabinets are fixed and finishes are complete. For a renovation in England, the useful starting point is not simply “add more sockets”, but to map how each room will actually be used and then have the electrical installation designed and checked against current safety requirements.
Start with the room layout, not the existing socket positions
Mark likely furniture, appliances, worktops, desks, televisions, charging areas and any equipment that may need a dedicated supply. This helps avoid relying on extension leads after the renovation is finished.
Electrical Safety First publishes guidance on adequate socket provision. Its current guidance recommends that socket-outlets are distributed around a room with furniture, equipment and future changes of use in mind. The guidance gives indicative minimum numbers by room size rather than a single number for every home.
Check the condition of the existing installation first
Adding new outlets to an old installation does not automatically make the system safer. Before extending circuits, a competent electrician may need to assess the consumer unit, earthing and bonding arrangements, RCD protection, cable condition and the capacity of existing circuits.
Part P of the Building Regulations in England requires reasonable provision to be made in the design and installation of electrical installations to protect people from fire or injury. Approved Document P explains when work must be notified and how compliance can be demonstrated.
RCD protection is a key part of modern socket safety
Electrical Safety First advises homeowners to use residual current device protection. Its socket guidance notes that, with limited exceptions, socket-outlets are required to have 30mA RCD protection under BS 7671.
If a renovation exposes that older circuits lack appropriate protection, the electrician should consider this as part of the overall design rather than treating each new socket as an isolated fitting.
Kitchens need more detailed planning
Kitchens combine water, fixed appliances and high electrical demand. Electrical Safety First advises keeping socket-outlets and switches a safe distance from a sink and says that, where possible, this should be at least 30cm horizontally.
For appliances installed under worktops, it also recommends arranging controls so they remain accessible, rather than leaving the only means of isolation behind a fitted appliance.
High-load appliances such as electric hobs or ovens may require a dedicated circuit and suitable connection arrangement. Do not assume that a higher-current appliance can simply be served by replacing a normal 13A socket with a “32A socket”. The circuit design, protective device, cable size, appliance instructions and installation method all need to be considered together.
Think about future use as well as today's devices
Electrical Safety First's socket-outlet guidance explicitly says provision should account for future changes of use. During a renovation this can mean allowing sensible outlets around likely furniture positions, home-working areas and media locations rather than clustering every socket where the previous owner happened to need one.
That does not mean installing the maximum possible number. It means reducing foreseeable dependence on multiway adaptors and trailing extension leads.
Some work may need building-control notification
Electrical work in dwellings is covered by Part P in England. Approved Document P explains which work is notifiable and how registered competent-person schemes can be used for certain work. The exact notification requirement depends on the type and location of the work, so homeowners should not rely on a generic rule such as “all socket changes are notifiable” or “none are”.
If you are unsure, ask the electrician how compliance and certification will be handled before work starts.
A practical renovation sequence
- Freeze the furniture, kitchen and appliance layout far enough to identify likely electrical loads.
- Have the existing installation assessed before assuming new outlets can simply be added.
- Mark general-purpose socket positions and any equipment likely to need dedicated circuits.
- Check RCD protection and consumer-unit implications.
- Coordinate socket positions with plumbing, cabinetry, insulation and wall finishes.
- Confirm which work is notifiable and what certificates will be provided.
- Photograph cable routes before walls are closed where appropriate, so future drilling and alterations can be planned more safely.
Warning signs that need investigation
Electrical Safety First advises not to ignore burn marks, buzzing or crackling sounds, repeated fuse operation or circuit-breaker trips, or sockets that feel hot. These are reasons to stop treating the issue as a layout upgrade and have the installation checked.
Sources and verification
- GOV.UK — Approved Document P: electrical safety in dwellings: Building Regulations guidance for England, including notification and compliance.
- The Building Regulations 2010 — Part P: statutory electrical-safety requirement for dwellings.
- Electrical Safety First — Adequate Provision of Socket-Outlets: indicative socket provision, distribution and RCD note.
- Electrical Safety First — Kitchen electrical safety: sink separation, appliance isolation and RCD guidance.
- Electrical Safety First — Plug and socket warning signs: overheating, arcing and circuit-trip warning signs.
Jurisdiction note: the Building Regulations references above relate to England. Electrical building-control rules differ elsewhere in the UK.