A Quiet, Comfortable Passive House on a Busy Street

Anna and James began their project with a standard code-compliant house design. The intention was to keep the form simple, with clean architectural lines and a few well-placed features to enhance street appeal — important given the home’s position on a main road. Internally, the spaces were carefully tailored to suit their lifestyle.

During the design process, they made the decision to pursue Certified Passive House performance — drawn to the idea of living in a home that maintains a stable indoor temperature of 20–25°C year-round, with minimal energy use.

Key features included:

  • The design eliminated thermal bridges, reducing heat loss and removing cold spots where mould could form

  • A Mechanical Ventilation with Heat Recovery (MVHR) system was incorporated to provide a constant supply of fresh, filtered, warm air throughout the home

  • High-performance triple-glazed windows were specified to ensure thermal efficiency and block out noise from the surrounding environment

Although located on a busy road, the interior of the home is remarkably quiet — a calm, comfortable space that feels completely detached from the hustle outside.

As a result, Anna and James now enjoy:

  • Consistent warmth without extra heating or winter layers

  • Clean, healthy indoor air all year round

  • A peaceful interior, free from traffic noise

A practical addition to the design was a ventilated drying cupboard, allowing laundry to dry overnight without relying on a tumble dryer — a smart, low-energy feature that fits seamlessly into their daily life.

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Breathing New Life into a 1970s Home: A Strategic Renovation Story

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What you need to know about building a Consent-Free 70m2 granny flat in New Zealand