New Zealand Commercial Design Trends Series NZ Commercial Design Trends Vol. 33/04C | Page 37

Facing page:A timber batten ceiling above and matching area rugs below bring warmth to the PwC lift and circulation lobby, which is also enlivened by a café. Below:Art for organisation’s sake – visitors to the top-floor Chapman Tripp offices are quietly directed towards the reception by the angles of a sawtooth dividing art wall that also shields workspaces and meeting rooms. brise soleils or other shade options that would interrupt the graceful lines of the building. “Our answer was to introduce fritted glass panels on the long street-side facade, interspersed with GRC matt panels – the correct proportion of the two successfully reducing the heat load from the northern sun.” The southern side of the centre is partly finished in this cladding, but not to the rear, where future adjacent construction will obscure it anyway. One talented staff member at Warren and Mahoney wrote some code based on an algorithm of birds swirling in flight, and this was applied to the frit pattern in the glass. There’s even a tui shape hidden in some of the fritted glass panels – so a visitor to the PwC centre with a child in tow has a ready distraction for them. Apart from attractive patterning, the fritted glass has the practical function of mitigating solar gain without significantly interrupting workers’ views. The building is designed to present a defined base, middle and top – respectively the ground floor set-back, the four central floors, and the top floor office space, occupied by law firm Chapman Tripp. The centre’s crisp aesthetics are given a human, warm feel through wooden batten soffits on the underside of the ground floor overhang, on the building’s formal entrance canopy and on the ceil- ing of the open terrace on the second-to-top floor – spaces taken by the naming tenant PwC. Elements of the building form are a response to the environment, too. Being in proximity to The Avon, a height of nearly a metre was calculated as the likely rise of water in a one-in-one-hundred- years flood. For this reason, the entire building is raised above ground level by one metre. Other examples include the fact that the tapered east end of the building presents a respectfully modest face to the river and Bridge of Remembrance. Plus the set back top floor delivers the 45% recession plane required by the city plan so the street to the north is not overshadowed. And the building’s raised base was given a head start thanks to Warren and Mahoney’s response to Christchurch’s most obvious environmental factor. search | save | share at