Passive House Renovation

Asher Street, Coogee

A beautifully finished coastal Passive House retrofit in Coogee, built smart and built to last. Located just moments from Coogee Beach on Asher Street, this high-performance renovation demonstrates that retrofitting an existing home to near-Passive House standards is achievable without compromising on luxury finishes.

Blaise Building Services delivered this project combining smart construction practices with sustainable high-performance building principles. The result is a home as comfortable as it is beautiful, featuring premium Havwoods engineered timber flooring, a striking bespoke kitchen, spa-quality bathrooms with handcrafted fish-scale tiles, and a light-filled attic retreat with ocean glimpses.

Our Process: From Knockdown to Completion

High-Performance Passive House Retrofit

BBS managed the full renovation from structural framing through to final finishes, ensuring passive building principles were integrated throughout the envelope while achieving a premium residential standard.

Premium Carpentry and Staircase Joinery

Custom carpentry throughout, from the feature staircase with turned balusters and dark timber handrail to precision ceiling junctions at the attic raked line, all executed to the highest craftsman standard.

Bespoke Kitchen Installation

A striking kitchen featuring custom blue cabinetry, patterned tile splashback, Calacatta marble island benchtop, and brass pendant lighting, installed as part of a complete builder-managed joinery package.

Spa-Quality Bathroom Finishes

Multiple bathrooms featuring handcrafted fish-scale tiles, skylit soaking baths, wall-mounted brass tapware, and custom timber vanities: every wet area delivered to a luxury standard.

Blower Door Test: 1.1 ACH Result

Upon completion, the home was tested with a Blower Door test. The result of 1.1 ACH is exceptional for a retrofit of this scale. For reference, most standard Australian new builds measure 5 to 10 ACH, making this result 5 to 9 times better.

Project Challenges

Delivering a high-performance retrofit to this level of finish in one of Sydney's most competitive coastal suburbs required careful coordination of premium materials, imported fixtures, and precise construction sequencing.

Achieving Passive House-level performance in a retrofit meant careful attention to the building envelope at every juncture, from the raked attic ceiling with airtight window detailing to the skylit bathrooms. Quality carpentry was essential throughout to support the premium joinery and bespoke tile finishes.

Results: A Year-Round Comfortable Home

1.1 ACH Blower Door Verified: exceptional result for a retrofit (standard builds measure 5 to 10 ACH)

Premium Havwoods HW14120 Gosford engineered timber flooring throughout

Custom blue kitchen with marble island benchtop and brass fixtures

Handcrafted fish-scale tile bathrooms with skylit soaking bath

Feature staircase with bespoke timber handrail and turned balusters

Light-filled attic retreat with ocean glimpses toward Coogee Beach

Project Outcome

The completed Asher Street home achieved 1.1 ACH Blower Door Verified, an outstanding result for a retrofit of this scale. A high-performance coastal home with premium finishes throughout: comfortable, healthy, and built to last generations. Located moments from Coogee Beach, this home sets a benchmark for quality passive renovation in Sydney's Eastern Suburbs. A Blower Door result of 1.1 ACH means this home has just 1.1 complete air changes per hour at 50 Pascals of pressure, significantly better than most new builds in Australia, which typically measure 5 to 10 ACH.

“From the very first meeting, the team at Blaise Building Services understood exactly what we wanted: a beautiful home that would stand the test of time. The finishes are stunning and the quality of the build is exceptional.”

Homeowners

Asher Street, Coogee

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