Jump to the beginning of content

Green Building

Rating: BEAM Plus NB V1.2 - Provisional Gold
Location: Muk Hung Street, Kai Tak
Type: Government, Institutional and Community
Owner: HKSAR Government

Cognitio College (Kowloon) Cognitio College (Kowloon) Cognitio College (Kowloon)

The project is to design and construct a 30-classroom secondary school in Kai Tak Development (Site 1A-2), Kowloon for re-provisioning Cognitio College (Kowloon). The total construction floor area (CFA) is about 13,500 m2. The overall site area is about 7,500m2 and it is abutting Muk Hung Street and Shing Kai Road. The School is scheduled for completion and handover by 2nd quarter of 2019.

This project is in line with the “Green City” concept of Kai Tak Development Area. The highlight of this project is to achieve environmental design via passive building elements rather than the incorporation of relatively high cost building services installations.

First of all, innovative typology design is adopted. The School is designed in low-rise building approach with open, creative, green and naturally ventilated environment (ECOL). The 4 distinct upper teaching blocks spatially define the voids and courtyard spaces, whereas the lower building portion provides an elevated podium garden for student outdoor activities. This approach significantly minimises the visual impact to the adjacent housing development. The wind corridors in each floor also allow natural breeze pass through the building and optimising the urban air ventilation in surrounding areas.

Secondly, several passive designs are proposed towards Carbon Zero such as recess window design for sun shading, natural ventilation and roof landscape, etc. The overall greening consists of more than 30% of the site area at grade, podium deck, terrace and roof level. On grade greening cover is more than 20% of site area. In terms of minimising the heat island effect from the development, green roof can significantly reduce the heat absorption inside the building during the day and hence reducing the amount of heat emitted from the building to the atmosphere at night.

Thirdly, besides of application of eco software at design stage helps to optimise day lighting and natural ventilation design, green building concept is adopted at construction stage. For example, more than 67% of construction and demolition waste generated from the demolition of existing structure can be re-used to reduce construction and operating solid and liquid wastes.

Other green features also adopted include the district cooling system, rainwater recycling system and photovoltaic (PV) panels system.