ePrivacy and GPDR Cookie Consent by Cookie Consent Building regulations and electrical work: The rules | Resi

What are the rules around building regulations and electrical work?

3 min read
Oct '25 • by Heather

Quick summary

In the UK, all electrical work in homes must meet building regulations since 2005. You need approval for installing new circuits, replacing fuseboxes, or altering circuits in rooms with baths, showers, or pools. To stay legal and avoid fines, hire a registered electrician or notify your local authority beforehand.

When you hear building regulations, you might suspect that such a thing couldn’t possibly apply to either your professional rewiring or DIY job. Surely building control is for big extension projects?

However, since 2005 all electrical work in UK homes must meet a set of requirements set out by building regulations - aka, standards the Government has set for all dwellings.

What work needs approval?

You’ll need to get building control approval if you are carrying out any of the following projects…

  • Installing a new circuit - even if its low voltage
  • Replacing a consumer unit, like a fusebox
  • Altering or adding to an existing circuit in a special location, such as a room containing a bath, shower, or swimming pool.

For the final point, you’ll only need approval from your council if your circuit alterations are in the space surrounding a bath or shower. However, if your home has a swimming pool or sauna, any electrical work in that room has to be flagged.

It’s worth noting, that it’s against the law for a homeowner or landlord not to be able to prove that their home meets building regulations. As a criminal offense, your local authority has the right to remove or alter any work within your home that does not meet the Government’s standards.

How much does an architect charge?