Can I install a power socket in my HDB bathroom?

Socket in bathroom HDB: what the rules say

No, a power point cannot go inside the bathroom of an HDB flat. On its electrical works page, HDB says power points should not be installed within bathrooms or toilets, which are wet areas under the Singapore Standard SS 638 code of practice. The wording covers bathrooms and toilets alike. The master bathroom and the common bathroom are treated the same, whether you live in an older resale flat or have just collected the keys to a BTO.

SS 638 is not an HDB-only reference. A circular from the Energy Market Authority (EMA) states that all new installations, replacements, upgrading or extensions shall comply with SS 638. That covers a full rewiring during renovation as much as a single extra point added years later.

The bathroom rule is one part of a wider set of renovation rules for flats. Before you finalise a plan, read our summary of HDB electrical renovation rules so every point is placed with the full picture in mind.

What can be wired in a bathroom

Keeping sockets out does not leave a bathroom without electrical items. Two fixtures can be wired in: the water heater and the exhaust fan.

The Consumer Product Safety Office (CPSO) says a water heater should not be connected to a 3-pin socket outlet. It should be wired directly to the mains through a double pole switch, with no extension cords or multi-way outlets. The CPSO also advises hiring a Licensed Electrical Worker to make sure the heater is properly wired. Storage or instant, it runs on fixed wiring and a switch, never a plug.

For ventilation, HDB's electrical works guidance says installation of an exhaust fan is only allowed in bathrooms, the mirror image of the socket rule. If your mirror stays fogged long after a shower, our bathroom exhaust fan guide explains what to consider.

Why wet areas and sockets do not mix

Picture a weekday morning in a four-room flat. One person showers, the next steps in while the floor is still wet, the mirror is fogged and someone reaches for a hairdryer with damp hands. A socket on that wall would sit where steam, splashes, bare feet and wet hands meet every day.

There is also a safety device to know about. EMA's electrical safety page says all residential premises must have a residual current circuit breaker (RCCB) or earth leakage circuit breaker (ELCB) with a rated residual operating current not exceeding 30mA. HDB flats built before 1985 did not come with one unless the owner installed it later, and owners without one should engage an LEW to install it. That protection is a safeguard, not a reason to bring sockets into wet areas, so learn how to test your RCCB.

Shavers, hairdryers and toothbrushes

If you have used a hotel bathroom with an outlet by the mirror, you may want a bathroom shaver socket at home too. HDB's rule makes no exception for one: power points should not be installed within bathrooms or toilets, whatever they are meant to power.

A few habits make this easy:

• Charge an electric toothbrush or shaver on a bedroom dresser and carry it in when needed.
• Dry your hair at a dressing table or bedroom mirror, away from the shower.
• Keep the hairdryer's cord out of the bathroom doorway, where the floor is often wet.

If anyone suggests a power point in toilet or bathroom walls as a small extra, decline and move it outside. When you are ready to add one in a dry room, our socket installation page shows what the job covers.

Planning a point outside the bathroom

Aim for a point close enough to be useful but clearly outside the wet area. Good spots include the bedroom wall beside a dressing table or a corridor wall near the bathroom door. If your flat has a basin outside the bathroom, ask your LEW where a point can sit relative to it. Our guide to planning electrical points helps you map every point before renovation, so the hairdryer point is not an afterthought.

Plan the route too. In an HDB flat, new wiring is not embedded in walls or plaster; it runs in surface trunking, above a false ceiling or behind carpentry. Decide early whether you can live with visible trunking or want the run hidden in wardrobe carpentry.

EMA says electrical work in an HDB flat needs a Licensed Electrician, the class of LEW approved for loads of up to 45kVA. Read EMA's guide to engaging Licensed Electrical Workers before you appoint one. Quotes depend on the job, such as how many points you add and the wiring route; our power point installation cost guide explains more.

Lights and IP ratings

Bathrooms still need light, and those fittings share the room's steam and splashes. Light fittings in a bathroom need suitable protection against moisture, which is what an IP (ingress protection) code describes. Before you choose slim downlights, read our explainer on bathroom downlight IP protection and ask your LEW to confirm each fitting suits its position, especially above the shower. Like the heater and fan, lights are fixed wiring on a switch, not a plug-in item.

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