Scale and Massing
A tall building is defined as one that is six storeys or more. More forms should be elegant and create positive features in the skyline. Their form, scale and massing must be carefully considered through detailed appraisal and testing including their visual impact on the setting both individually and when part of a cluster.
Tall buildings must also consider their impact on the street environment and public spaces. Buildings that are too tall can visually overwhelm and cause unwanted side-effects, such as wind funnelling, overshadowing or trapping air pollution.
Features of tall building location and siting
- Elegance, proportionality and verticality
- Slender form comprising a base, middle and top
- Avoid microclimate impacts
Tall buildings must express elegance, proportionality and verticality.
Examples of creating proportion and verticality
Vertical window openings
Vertical frame and columns
Vertical and horizontal proportions
Examples of tall building form and proportion
Daylight, sunlight, amenity and overshadowing
The scale and form of the building must be designed to allow daylight and sunlight into amenity spaces and buildings.
Applicants must demonstrate that the design of tall buildings has taken into account the impact of their proposal on wind microclimate.
Principles of wind microclimate
Consider how the impact of downdraught can be mitigated to reduce negative impact of high speeds at street level
Consider impact of moving wind around a curved building and how that can impact surrounding context
Tall building scale and massing case studies
Egham Gateway master plan by Allford Monaham Morris Egham Gateway is a new A well-integrated mix of different land uses which may include retail, employment, leisure and other service uses with decent homes of different types and tenures to support a range of household sizes, ages and incomes. More in the Runnymede borough of Surrey. Four A well-integrated mix of different land uses which may include retail, employment, leisure and other service uses with decent homes of different types and tenures to support a range of household sizes, ages and incomes. More