Rangi Kahu

Project Details

Architect / Designer
James Stockwell
Nick Mizzi - Spearhead Developments
E13 Windows
Pacific Thermal Suite
Industry Sector

“The completion date did not alter despite the late client changes and E13 Windows delivered on time so that the project finished on time.” 
- Nick Mizzi, Spearhead Developments


A World Away In Wanaka

Designed by architect, James Stockwell, and built in Queensberry Hills, Wanaka by Nick Mizzi, sits a house that just oozes an intergalactic wow factor. This is a house that no other window manufacturer wanted to touch. It was just too complicated. We saw that as a challenge and met with the owner and architect to discuss how we could help make their vision a reality.

The result is a house that effectively has glass for all its external walls. It’s 80% glass and the rest of the structure leans against the ground. It’s a sight to behold. Inside and out, all of the angles immediately strike you. It’s breathtaking. The roof structure alone was a monumental task for the builder, Nick Mizzi, who has done an exceptional job here, and deserves a lot of credit for the fine result produced for the client on behalf of their architect.

This was a project that required serious know-how and expertise to pull off. The complexity of the window joinery had to be measured precisely to the mm, then drawn up on CAD for manual job sheets. Fabrication had to be kitset for easy onsite assembly. The large front window had to be completely made up and assembled on site. All mullions are positioned directly in front of the steel structure.

The client wanted double glazing only but after assessing that with the incredible amount of glass in the house -- essentially all of the external walls, with the rest of the house packed against ground -- triple glazing was the only sensible option. We used Pacific Thermal Suite with Double Planitherm XN Low E Triple Glazing.

Costello Front Door
Costello Bedroom
Costello interior windows
Costello row of windows
Costello in dusk
Costello in grass