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ARC, Sydney
ARC, Sydney by Koichi Takada Architects for Crown Group Arc is made up of two 26-storey, 80-meter high towers. The mixed-useA well-integrated mix of different
Tall buildingA tall building is defined as one that is six storeys or 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.
It is more successful to express the verticality of tall buildings using vertically proportioned grids or patterns. The shape and proportion of window openings should also correspond to the verticality of the building.
Applicants should demonstrate in their submission how this element of the Code has been complied with.
Documents required:
Vertical window openings
Vertical frame and columns
Vertical and horizontal proportions
How a tall buildingA tall building is defined as one that is six storeys or more. meets the ground and sky is critical to its success. The standard architectural convention of a base, middle, top should be employed in combination with site-wide key massing datums.
Tall buildings should be grounded, creating a sense of permanence and presence. This should be articulated through a regular, repeating bay rhythm or through a more solid elevation with emphasised openings. Double or triple height ground floor spaces should be created with active uses planned at strategic places to enliven the street at different times of the day. The quality of material, detailingThe details of a building are the individual components and how they are put together. Some are a deliberate part of the appearance of a building, including doors, windows and their surrounds, porches, decorative features and ironmongery. Others are functional, although they can also contribute to the appearance of a building. These include lighting, flues and ventilation, gutters, pipes and other rainwater details. Detailing affects the appearance of a building or space and how it is experienced. It also affects how well it weathers and lasts over time., glazing and fenestration should articulate the street level interface as a distinct section of the building. This should integrate into the rest of the built environment. Particular consideration should be given to the materials and detail used at ground floor level where materials should enhance the street level experience and respond to the local context.
The middle section can make use of an elevational grid to respond to either residential or commercial uses which can be expressed as simple repetition or expressed bays.
Options to terminate the building to the skypoint (top) include elevation rhythm change, crown, hipped corners and decorative caps. Any rooftop plant should be integrated into the architecture to create a well-conceived sillhouette.
Applicants should demonstrate in their submission how this element of the Code has been complied with.
Documents required:
Solar studies should be used to demonstrate that new development is in general compliance with the guidelines set out in the BRE guidance in terms of the impacts of daylight, sunlight and overshadowing, including the two hour sun on ground analysis.
Applicants should demonstrate in their submission how this element of the Code has been complied with.
Documents required:
The development of tall buildings can lead to wind microclimate impacts. These issues can impact on the safety and comfort of pedestrians as a result of wind speeds and wind tunnelling. Developments must be designed and assessed to ensure that no detrimental wind microclimate impacts arise as a result of developments.
Applicants should demonstrate in their submission how this element of the Code has been complied with.
Documents required:
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
ARC, Sydney by Koichi Takada Architects for Crown Group Arc is made up of two 26-storey, 80-meter high towers. The mixed-useA well-integrated mix of different
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