Built in 1881 by William and James Burt, “Cairngorm” is a state heritage listed residence in Balmain. The house is one of a pair of fine Victorian filigree semi-detached residences that contribute to the historic character of Balmain and home to a professional couple and their teenage children.
After five years in DA, the home has been masterfully renovated and restored by Sydney-based builder Jac+Kal Constructions, who were honoured with the 2025 Master Builders Award for the project, and David Mitchell Architects who were awarded Silver Prize for Architectural Design in the 2025 IDPA Awards.
The project involved the meticulous restoration and extension of the original residence, alongside the addition of a new pool, cabana, and carport. Working within the existing footprint, Jac+Kal introduced off-form concrete elements that create a striking yet sympathetic contrast to the original sandstone structure, allowing heritage and contemporary forms to coexist in harmony.
Creating a dialogue between past and present, the new off-form concrete ceilings, pitched to a skylight above the kitchen, form a sculptural interplay of light and texture, while the heritage sandstone restoration involved stripping layers of paint, repointing stonework, and hand-tooling new stones to replace damaged sections. The result is a seamless blend of restoration and reinvention. Other key features include:
- Construction of a “pod” bathroom designed to sit independently within the original structure to protect the heritage walls and fireplace.
- A serene pool and landscaped rear courtyard that contrast beautifully with the textured concrete and natural stone.
- Hand-turned timber posts and beams replicating the originals.
Demolition was limited to unsympathetic 1960s–to-80s additions. Enclosed balconies and rear extensions were removed to reveal the home’s original proportions and reintroduce the open verandahs and sandstone façades. Detached rear structures were selectively deconstructed to enable new extensions that honour the heritage form while accommodating modern living.
The project closely followed the conservation philosophy outlined in the Burra Charter (2013), prioritising minimal intervention, respect for original fabric, and reversibility of new works. Notable examples include the restoration of the front façade’s cast-iron detailing, retention of the first-floor fireplace, and the construction of the pod bathroom designed to sit independently within the original structure to protect the heritage walls.
Sustainability and innovation were embedded throughout the build. Wherever possible, original materials, including sandstone, timber, and internal walls were retained and reused. The new extensions maximise natural light and ventilation, and the home now features integrated systems for solar power, hydronic, and electric underfloor heating to enhance energy efficiency.
The restoration of Cairngorm enhances the Balmain streetscape and reaffirms the enduring value of preserving Sydney’s architectural heritage. Through craftsmanship, innovation, and integrity the renovation has delivered a home that embodies both historical reverence and contemporary excellence.
“This project reflects our passion for precision, craftsmanship, and respectful innovation,” said Kaleb Pearson, Founder of Jac+Kal Construction. “The design blends heritage and contemporary elements in a way that suits modern living, creating a calm and serene home, enhanced by features like natural stone finishes and the pool area, which promote wellbeing and relaxation.”
For more on Jac+Kal Constructions and David Mitchell Architects
Photos by Clinton Weaver
