3 Parramatta Square

A stacked series of articulated glass boxes

Summary

Location:

3 Parramatta Square, Parramatta

Sector:

Commercial office and retail

Size:

18 storeys (76.6m high)

Estimated cost:

$175M

Completion date:

2020

Team

Client:

Walker Corporation

Main contractor:

Built

Architect:

JPW Architects

Facade installation contractor:

Highlight Aluminium

Facade Manufacturer

Singyes Engineering (HK)

Facade consultant:

Prism Facades

Facade specs & stats

Systems:

A unitised flush glazed curtain wall system adapted to suit each facade, with expressed aluminium frame features accentuating the column grid of the podium areas. Entry lobbies incorporated double height frameless glass.

Facade area:

19,100m2

Largest panel:

5.3m × 3m

Heaviest panel:

800kg

Sustainability:

6-star Green Star

Adjacent planes, juxtaposed to appear as separate building forms

CHALLENGES

Full-height glazing for a day-lit atrium

JPW Architects designed 3PS to be distinguishable from other buildings in the Parramatta Square precinct. The single building’s facade is broken down into smaller, stacked glazed forms. This was achieved through changes in planes and multiple terraced articulations in the building envelope.

Expressing the architectural intent with a fully glazed atrium
Implementing concealed changes in facade plane alignment
Developing unique waterproof junction connections

The building incorporates a naturally lit central atrium—one of the largest of its kind in the country. The atrium features an external glazed wall with multiple floor voids, and is topped with a drained, panelised and glazed skylight system.

Development of interface details

We developed specific interface details for each expressed or recessed plane to ensure weatherproofing performance and visual continuity of the facade. We needed forward planning to develop sequencing that would ensure safe access to install the facade and weatherproofing works at each junction.