Australian Standards: Toilets per Person
In Australia, building codes and standards play a crucial role in ensuring the safety, accessibility, and functionality of structures. One aspect that's often overlooked but is vital for comfort and convenience is the provision of toilets. So, how many toilets should a building have per person according to Australian standards? Let's delve into the details.
Understanding the Australian Building Code
The Australian Building Code (ABC) is a set of regulations that apply to all buildings across the country. It's designed to ensure the health, safety, and amenity of buildings. The code provides guidelines on the number of toilets required based on the type of building and the number of people it's designed to accommodate.
Toilets per Person: The Basics
The ABC stipulates that for every 20 people, there should be at least one toilet. This is a minimum requirement and is applicable to all buildings, including residential, commercial, and public spaces. However, this is just a starting point. Let's explore the specific requirements for different types of buildings.

Residential Buildings
For residential buildings, the number of toilets required is based on the number of bedrooms. The general rule is one toilet for every two bedrooms. So, a three-bedroom house would need at least one toilet, while a four-bedroom house would need two toilets, and so on.
Commercial and Public Buildings
For commercial and public buildings, the number of toilets required is based on the maximum number of people the building is designed to accommodate. The ABC provides a table outlining the minimum number of toilets required based on the maximum number of people. For instance, a building designed for 100 people should have at least five toilets.
| Number of People | Minimum Number of Toilets |
|---|---|
| 100 | 5 |
| 200 | 8 |
| 300 | 11 |
| 400 | 14 |
| 500 | 17 |
It's important to note that these are minimum requirements. In many cases, it's recommended to provide more toilets to ensure comfort and convenience, especially in buildings with high foot traffic.

Accessibility Considerations
In addition to the number of toilets, Australian standards also dictate that buildings must provide accessible toilets. This includes toilets that are wheelchair accessible and toilets for people with disabilities. The specific requirements vary depending on the type of building and the number of people it's designed to accommodate.
Conclusion
Australian standards provide clear guidelines on the number of toilets required per person. While these standards ensure a minimum level of comfort and convenience, it's often beneficial to exceed these requirements, especially in buildings with high foot traffic. By understanding and adhering to these standards, we can create buildings that are not only safe and functional but also comfortable and convenient for all users.