Unlocking Urban Spaces:

Key Insights from Clarke Banks Group
By Michael Fitzgerald – Building Safety Lead – Clarke Banks Group

In a recent update from the UK Government, significant clarity has been provided on the classification of roof terraces and their impact on building height measurements. This guidance, part of the criteria for being a higher-risk building during the design, construction, and occupation phases of the new higher-risk regime, is crucial for architects, developers, and urban planners aiming to maximize the potential of urban spaces.

Key Insights:
• Roof Terraces and Storey Classification: According to the guidance, roof terraces, including open rooftops and rooftop gardens, are explicitly stated not to be considered as additional storeys. This distinction is pivotal when determining the number of storeys in a building.
• Implications for Building Height: The exclusion of roof terraces from the storey count ensures that these spaces do not affect the overall measurement of a building’s height. This can be particularly advantageous in urban settings where height restrictions and zoning laws are stringent.
• Diagram 11 Explanation: Diagram 11 in the guidance document provides a visual representation of this principle, illustrating how roof terraces are to be treated in architectural plans. This diagram serves as a practical tool for understanding and applying the guidelines.
• Impact on Higher-Risk Building Classification: By not counting roof terraces as storeys, some lower-rise developments may avoid being classified as higher-risk buildings. This can reduce regulatory burdens and associated costs, making development more feasible and streamlined.

This clarification facilitates innovative rooftop designs, encouraging the creation of more green spaces and social areas without the constraint of additional storey limitations. As cities continue to grow vertically, such guidance ensures that urban development remains both functional and aesthetically pleasing.

By acknowledging roof terraces as non-storey elements, the UK Government is promoting sustainable and efficient use of space, enhancing the quality of life in urban environments.

For more detailed information, refer to the full guidance document and Diagram 11 for a comprehensive understanding of these regulations.