Innovative Window System Design

When EJE Architecture put forward an inspired façade for the GWH Darby Plaza project, Hunter Windows was tasked with making it a reality.

  • Client


  • Sector

    Commercial Development

  • Location

    Hunter Street, Newcastle

  • Products

    Window Facade


When EJE Architecture put forward an inspired façade for the GWH Darby Plaza project, Hunter Windows was tasked with making it a reality.

The Challenge

Combining a more traditional strip window exterior with a curtain wall design.

There were two distinct challenges facing Hunter Windows when it came to achieving the desire aesthetic.

  1. From the outside, strip windows and precast balustrade panels needed to merge seamlessly into what appears to be a glass curtain wall – two systems that are generally incompatible
  2. The solution designed to meet point 1, also needed to then extend around the curved exterior leading into the plaza and foreshore access.

The Solution

Cast-in Brackets

Cast into the floor slabs, this bracket system is commonly used in curtain walls, extending from the structural build to support the glass wall.

In this instance however, the cast-in bracket system supported glazed spandrels that looked like windows from the outside, but acted as balustrades on the inside.

Not only did they achieve the desired look of a curtain wall, but the heat strengthened glass and the backing of non-combustible insulation, speed panel and finished plasterboard, meant it easily achieved the thermal, sound and fire ratings required.

The Details

During the slab pour on each level, 300mm U channels were anchored into the edge of the slab to secure the 250 steel angle brackets.

windows cast-in brackets

The brackets would then be attached to the sub-sill fixing above and the sub-head fixing below.

This process also worked perfectly for the faceted windows that make up the 4 metre radius curve on the south-east corner of the building.

The Outcome

The contrast of the precast panelling, large windows and the unique aluminium decorative panels really makes the building ‘pop’, creating a true stand-out look.

The newly built Darby Plaza has proved a shining example of, and welcome addition to, the revitalisation of Newcastle.

Partner with us on your next project

Contact our specialised team for more information about our products and how we can meet your specifications.

Our Projects

Centrale Apartments

Located on the corner of Brunker Road and Awaba Road Broadmeadow. Centrale consists of 39 apartments across 4 levels and a fantastic rooftop entertaining space, all of which was completed in just under 12 months. The construction of Centrale was a true team effort that saw four Hunter Group companies working together to achieve completion.


A stunning addition to the Newcastle skyline, Aero Apartments houses 45 apartments, and won Master Builders Association award for Apartment Development of the Year 2018.