En-Suite

A bathroom directly connected to and accessible only from a bedroom, providing a private bathing and washing area for that room's occupants.

An en-suite (sometimes written as “ensuite”) is a bathroom that is attached to a bedroom and can only be accessed from within that bedroom. It typically contains at least a shower, toilet, and washbasin, though larger en-suites may include a bath as well. The term comes from French, meaning “in sequence” or “following on.”

En-suite vs. family bathroom

  • An en-suite serves one bedroom and is accessed only from that bedroom
  • A family bathroom is a shared bathroom accessed from a hallway or landing, serving the whole household

Adding an en-suite to a master bedroom is one of the most popular renovation projects, as it increases both convenience and property value.

Key considerations when adding an en-suite

Space requirements

A compact but functional en-suite with a shower, toilet, and basin can fit into a space as small as 1.5 m x 2.0 m (roughly 5 ft x 6.5 ft). This space often comes from the bedroom itself — either by partitioning off a corner with a stud wall or converting a built-in wardrobe.

Plumbing access

The biggest factor in where you can put an en-suite is plumbing:

  • Waste pipes from the basin and shower need to connect to the existing drainage system
  • Soil pipes from the toilet need to reach the main soil stack — the further away, the more complex (and expensive) the installation
  • Running pipes through or between joists must follow building regulations to avoid weakening the floor structure

Ventilation

An en-suite without a window must have an extractor fan to remove moisture. Even en-suites with windows benefit from mechanical extraction, as steam from daily showers in a small space can lead to damp and mould.

Waterproofing

The floor and walls around the shower area need proper waterproofing (known as tanking) to prevent water damage to the bedroom floor below. Consider a wet room design if you want a fully waterproofed, walk-in shower.

Practical tip

When planning an en-suite, work backwards from the soil stack location. The closer the toilet is to the existing soil pipe, the simpler and cheaper the plumbing. Ask your contractor to assess the route early, as this often determines whether a project is straightforward or complex.