To apply the building definition to your structure, it is necessary to assess its characteristics and determine its classification carefully. Here are the key steps involved:

Assess Attachment or Independence: Consider whether your structure is attached to any other structure or stands independently. If a structure is not attached to any other structure, it is considered a building on its own.

Evaluate Independent Sections: If a structure is not attached to any other structure but contains one or more independent sections, each independent section is also classified as a building. An independent section is defined as a section within a structure that has its own entrance and exit accessible from anywhere within that section. It either has no access to any other section of the wider building or only has access to another section that does not contain a residential unit.

Determine Attached Structures: If two or more structures are attached to each other, they are considered a single building, known as a “wider building.” However, if the attached structures contain one or more independent sections, each independent section is classified as a separate building.

Consider Construction Phase: It’s important to note that the definitions in paragraphs (2) and (4) of regulation 4 of the Regulations do not apply while a building is being constructed or proposed to be constructed. This is because that during the construction phase, the building may still undergo changes, making it difficult to determine its classification accurately. Once construction is complete, the definitions become relevant for classification.

Buidling owners must carefully analyse their structure, its attachments, and independent sections to determine how the building definition applies to your specific scenario. This knowledge is essential for accurately identifying higher-risk buildings and subsequently assessing them against height or storeys thresholds and use criteria.

Additionally, it’s important to refer to the diagrams provided in the government guidance, as they offer practical examples of different building types and how they are considered under the building definition. These examples can assist you in evaluating your own building and its classification.

Remember that if your structure contains independent sections, any plant rooms within those sections should be considered as part of that specific building. It is crucial to cooperate with other accountable persons involved in the building to manage the safety risks associated with plant rooms effectively.

Counting storeys and measuring height accurately is a critical step in determining if a building meets the higher-risk threshold. It involves following a standardised process to ensure consistency and reliability in classification.

To count storeys, consider each level that is either wholly or partly above the ground level. This includes all habitable floors and intermediate levels. Non-habitable floors such as mechanical rooms or storage areas may also be included depending on the specific regulations or guidance.

When measuring height, it is important to follow the standardised methods outlined in the regulations. This typically involves measuring from the ground level to the highest point of the building, including any rooftop structures or features that are integral to the building’s design.

By adhering to these counting and measuring guidelines, you can accurately assess the height and number of storeys of a building. If the measurements indicate that your building reaches a height of 18 meters or has at least seven storeys, it falls within the higher-risk category, subject to meeting other relevant criteria as well.