When implementing a single-loaded corridor design, what is the recommended building efficiency ratio?

In a single-loaded corridor design, the recommended building efficiency ratio is typically around 0.70. This ratio indicates the proportion of usable floor area to the total building area, taking into account both conditioned spaces and circulation areas. A single-loaded corridor typically has amenities and spaces on one side of the corridor, which allows for more efficient use of space as it reduces unnecessary hallways and transitions.

A building efficiency ratio of 0.70 is beneficial as it implies a good balance between usable space and circulation space. Higher efficiency ratios indicate a more optimized layout, maximizing the usable square footage while minimizing the impact of hallways and other non-assignable spaces. This design strategy is particularly useful in reducing costs associated with heating, cooling, and lighting, since such spaces are effectively minimized.

In contrast, lower ratios would suggest less efficient designs where more space is given to corridors or circulation than necessary, which can lead to increased operational costs and potentially a less functional building layout.