Completed Project

Golden Vale Project

Architect: J Mammone Architecture

Builder: Glenstone Constructions

Location: Megalong Valley, NSW

System: Geothermal Exchange System with Horizontal Ground Heat Exchanger

Project Brief/Scope:

  • High end architectural home with passive design elements in regional New South Wales
  • Hydronic underfloor heating installation
  • Chilled water fan coil cooling
  • 6-pipe ground source heat pump
  • Nominee for ArchDaily’s 2024 Building of the Year

Golden Vale, a visionary architectural masterpiece nestled in the picturesque Megalong Valley of New South Wales, epitomizes sustainable living and innovative design. At the heart of this inspiring home lies a cutting-edge geothermal exchange system, meticulously engineered to provide efficient heating, cooling, and domestic water heating while minimizing environmental impact.

Harnessing the Earth’s natural energy, Golden Vale’s geothermal exchange system features a horizontal ground heat exchanger buried beneath the lush landscape surrounding the residence. This network of underground pipes serves as the primary heat source, utilizing the stable temperature of the Earth to exchange thermal energy with an internally-located, whisper quiet 6-pipe water-to-water ground source heat pump.

The in-slab Rehau pipework, renowned for its durability and performance, seamlessly delivers hydronic underfloor heating throughout the living spaces. This radiant heating system ensures uniform warmth, distributing heat evenly across the floors to create a cozy and comfortable environment for the occupants, even during Megalong’s chilliest winter nights.

In addition to heating, the geothermal exchange system powers chilled-water fan coil cooling, providing refreshing relief during the scorching Megalong Valley summers. By leveraging the Earth’s consistent temperature, Golden Vale remains cool and comfortable year-round, without relying on energy-intensive air conditioning systems, thus reducing energy consumption and carbon emissions.

Architecturally, Golden Vale’s design harmonizes with its natural surroundings, featuring expansive windows that frame panoramic views of the valley and blurring the boundaries between indoor and outdoor spaces. The use of locally sourced materials and passive design strategies further enhances the home’s sustainability, creating a synergy between modern luxury and ecological responsibility.

As a nominee for ArchDaily’s 2024 Building of the Year, Golden Vale stands as a testament to the power of innovative design and sustainable technology in shaping the future of residential architecture. With its commitment to eco-conscious living and luxurious comfort, Golden Vale is not just a residence but a symbol of a brighter, greener future.

Our Trusted Partners

We wanted to drop you a line to say thank you for your expertise and professionalism during our geo journey. Your patience and outstanding knowledge were visible along the way and greatly appreciated. Congratulations in assembling a team who have all been of the same high standard. It has been a pleasure to deal with all of you.
- Jenine Cranston and Douglas Fone, Artarmon, Sydney
We engaged CWL for the geothermal exchange and HVAC works on our unique project in Bellevue Hill and were selected based on pricing and their previous experience. It turned out to be the best choice in subcontractors we made for the whole project. Their professionalism, work ethic, expertise and willing to help wherever needed made a highly complex services installation that much easier, and more efficient than expected. I’d like to personally thank James and the site team who put the extra effort in at all times to get our project over the line with remarkable results. Highly recommended Subcontractors and mechanical consultants.
- Theo Elphick, Site Manager, Built
A culture of striving for excellence combined with motivated and dedicated staff is what defines CWL Group. Their workmanship is second to none and it is obvious that all of the staff care about what they do. Commitments are met and exceeded and there are no problems that can’t be resolved. I’m looking forward to working with Clayton and his team in the future and have no hesitation in recommending them to anyone.
- Mick Carroll, Bellevarde Constructions
The team from CWL Group are very reliable, responsive and efficient in their work. They go above and beyond to make sure the job is completed at its highest standard. The knowledge of the guys is exceptional. I would recommend the CWL Group team every time!
- Annemarie Rodrigo, Bellevue Hill House Keeper
I want to thank CWL Group for the outstanding work in installing our hydronic heating system. I have worked with many plumbers over the years and I have never seen such a high standard of workmanship. They came in on time and on budget. I cannot recommend the team from CWL Group highly enough.
- Robert & Roberta Cook, Blue Mountains

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