6 Celcom Headquarters
ORIENTATION AND BUILDING DESIGN The site is located at the frontage of Persiaran Barat, facing the Federal
Highway. The building overlooks the highway, occupying PJ Sentral Garden City’s western boundary and is directly accessible from the Jalan Timur-Jalan Utara ring road as well as the Taman Jaya LRT Station. The building has a north- west orientation with a surface area to GFA ratio of 32.55 per cent. The spatial organisation adopts the ‘island plan’ in which the core of the building is located in the middle and the office areas surround the perimeter of the glazing to optimise view and daylighting.
The iconic lozenge shape of the building acts mainly as a symbol of the company brand. Moreover, the natural geometry of the vertical lozenge ensures that the floor plate reduces in size as it goes to the top of the building. This reduces the roof heat transfer as it has the smallest floor plate area. In terms of façade, the surface takes on a folding texture to give it a dynamic architectural profile. This is also done in order to reduce direct heat gain and glare by introducing angles on all surface of the glazing.
Landscape area for the project is 1,255 square metres (approximately 15 per cent of the total site area) and the species are native and adaptive to the local climate such as Helocinia, Asam Kandis (Garcinia Subelliptica, Tembusu Tikus (Pteleocarpa Lamponga), Pokok DuitDuit (Epipremnum Aureum), Bucia Molineti and others. The use of native species does not only give the landscape a more local feel but also alleviate maintenance. The landscape is designed as a natural aesthetic that frames the perimeter of the tower. Using local species and recycled irrigation, the water usage of the landscape is optimised.
46 FUTURARC USE OF WIND
Natural ventilation is utilised for all podium car park areas and the covered cafeteria on the podium deck. For car park, adequate perimeter opening is allowed in order to obtain the minimum 10 per cent surface-opening-to-floor- area ratio required for natural ventilation as per UBBL. As for the podium deck level encompassing the open deck, food stalls and cafeteria, louvres are installed to shield from rain but allow for wind and cross ventilation to the staff cafeteria. Closed areas such as the auditorium are air-conditioned.
NATURAL DAYLIGHTING & VIEW OPTIMISATION Natural daylighting, together with the façade’s solar performance, was carefully balanced as it was the first few office buildings in Malaysia to have floor-to-ceiling glazing. The glazing and internal shading were designed to reduce glare and improve indoor environment quality (IEQ). Hot-desking work environment was also introduced to encourage interfloor connectivity and walkability between floors.
ATRIUM & VOID AREA
An atrium greatly enhances daylighting and breathability of a space. In terms of spatial quality, the areas between office spaces are able to visually interact with one another, optimising efficiency and quality of life. The multiple-floor atrium would also allow high glazing areas for optimal view to the outside and ample daylighting.
MATERIALS & SHADING With no external shading devices, it means that direct solar penetration would
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