Emily Street Point Lonsdale

Passive Solar Home on Emily St, Point Lonsdale

Tucked into a bushy, triangular corner block in Point Lonsdale, this compact but efficient residence reflects a clear purpose. The clients wanted an energy-efficient, low-maintenance home with quality finishes and a strong connection to a future northern garden.

The design response balances budget with high-performance outcomes. An L-shaped footprint along the southern and eastern boundaries maximises solar gain through the north and west-facing walls. At the same time, the angled layout supports privacy from the two street frontages.

This project is one of many thoughtfully executed custom homes built in Point Lonsdale, reflecting Grow Build & Design’s approach to energy efficiency and construction quality across the Bellarine Peninsula.

Light, Warmth and Thermal Control

Burnished concrete flooring lines the main living spaces, absorbing the winter sun that slips beneath the eaves. That thermal mass, combined with low-e coated timber double glazing, holds and radiates warmth throughout the evening.

Meanwhile, the broad roof overhangs shade these same thermal surfaces during high summer, preventing unwanted heat gain during midday and late afternoon sun.

Cross-ventilation plays an equally vital role. Full-height sliding doors on opposing north and south walls allow the sea breeze to pass cleanly through the interior. On warmer days, this natural air flow works quickly to cool the internal space.

Material Strategy on a Modest Budget

Despite tight cost constraints, the materials and detailing were carefully selected for both performance and visual effect.

A light-duty steel frame was paired with compressed cement sheet cladding, overlaid with reflective foil to reduce thermal transfer into the building envelope. These layered elements act like a thermal blanket, trapping air pockets between materials in a way similar to double glazing.

Timber window frames were used throughout to reduce thermal bridging and soften the visual hardness of the external cladding.

Inside the building envelope, a breathable waterproof membrane was installed to create a sealed air barrier. Every window, door and service penetration was detailed for airtightness. Once locked up, the structure was filled with high R-value recycled glass insulation. All remaining gaps were sealed with thermal foam to minimise any unwanted air movement.

Sustainable Systems Working Together

The mechanical and electrical systems in this build reinforce the home’s passive efficiency principles.

  • Solar array: Generates daytime power for heating and cooling support

  • Electric heat pump: Draws minimal energy to efficiently heat water for household use

  • Rainwater tank: Captures and stores stormwater for garden use and toilet flushing

  • Automatic switch: Connects to mains water when rainwater is low

  • Dark roof cladding: Assists in drying condensation under roof sheets, helping to maintain long-term membrane health

Thanks to the home’s insulation and airtightness, even occasional cooling is managed using a highly efficient heat pump air conditioner. The system is powered easily during peak sun hours, reducing the need for ongoing energy input.

Interior Simplicity, Function and Garden Outlook

Internally, all fixtures, fittings and cabinetry were selected for performance, style, and cost-effectiveness. Achieving this balance required careful sourcing to ensure nothing compromised the overall feel or finish of the design.

The rough-sawn timber batten fencing offers a clever solution to the privacy challenge created by the dual street frontage. Positioned behind dense vegetation, the batten screen filters views without blocking out light or the green outlook. It maintains a soft visual rhythm that blends with the home’s aesthetic and the surrounding landscape.

This Emily Street home is a clear example of how clever design, informed material choices and passive principles can deliver long-term comfort and performance, even with a restrained budget. It’s a tailored response to the Point Lonsdale climate, lifestyle and character.

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