About us
PROJECTS
services
BUY PLANS
PASSIVHAUS
JOURNAL
MEDIA
South West WA
Contact Us

leanhaus

About us
PROJECTS
services
BUY PLANS
PASSIVHAUS
JOURNAL
MEDIA
South West WA
Contact Us
September 8, 2023
Ben Caine
The Lean Architect on Youtube

Practical Passive House knowledge, tour completed homes, construction and design insights and more.

The Lean Architect on Youtube
June 4, 2021
construction, materials, passive house
Ben Caine
Wood Fibre Insulation in Perth: A Passive House ...

Wood fibre insulation is now available in Perth, with an 8.2 hour phase shift vs 5.7 hours for standard glass wool. See the performance, cost and lead times.

Wood Fibre Insulation in Perth: A Passive House Standard
Ben Caine
August 19, 2026
design, passive house

Keeping cool without air conditioning - a guide for new homes

Ben Caine
August 19, 2026
design, passive house
Keeping cool without air conditioning - a guide for new homes

Beat the heat without relying on AC. See the passive cooling strategies we use at Leanhaus, from shading and insulation to natural ventilation and landscaping.

Tagged: design, sustainable design, air conditioning, shading, passivehouse, insulation, ventilation, landscaping, air tight

Ben Caine
August 19, 2026
passive house

Benefits of a Passivhaus Certified Home: The Research

Ben Caine
August 19, 2026
passive house
Benefits of a Passivhaus Certified Home: The Research

New research shows Passivhaus homes cut carbon emissions by 86% and energy bills by 30%, plus major health and comfort benefits.

Tagged: passivehouse, passivhaus, passive house, costs

Ben Caine
April 7, 2026

Double Brick vs Timber Frame: Cost Comparison Perth 2026

Ben Caine
April 7, 2026
Double Brick vs Timber Frame: Cost Comparison Perth 2026

Bricklayer shortages have pushed double brick costs sharply higher in Perth. See why timber framing now costs less and performs better for a new build.

Ben Caine
April 7, 2026

10 Reasons Your New Home Build Won't Go Ahead

Ben Caine
April 7, 2026
10 Reasons Your New Home Build Won't Go Ahead

Most stalled home builds fail before construction even starts, and usually for the same avoidable reasons. Here are 10 honest truths every prospective client needs to hear.

Ben Caine
October 21, 2025

Passive House School Design in WA: Nollamara Case Study

Ben Caine
October 21, 2025
Passive House School Design in WA: Nollamara Case Study

See how Passive House design principles were applied to a Steiner school in Nollamara, WA, balancing energy performance with organic, daylight-filled learning spaces.

Ben Caine
June 25, 2025

Why Energy-Efficient Homes Are Selling for $118K More Than Their Neighbours

Ben Caine
June 25, 2025
Why Energy-Efficient Homes Are Selling for $118K More Than Their Neighbours

New data shows energy-efficient homes with solar, double glazing and north-facing design sell for 14.5% more than comparable listings. Here's why the premium holds.

Ben Caine
March 20, 2025

Leanhaus Client Reviews: What It's Like Working With Us

Ben Caine
March 20, 2025
Leanhaus Client Reviews: What It's Like Working With Us

Three recent clients share what it was really like building a Passive House home with Leanhaus, from first brief to move-in day.

Ben Caine
January 14, 2025

Climate Resilient Homes: The True Measure of Luxury

Ben Caine
January 14, 2025
Climate Resilient Homes: The True Measure of Luxury

The destruction of entire upscale neighborhoods in Los Angeles highlights a critical truth: status-driven luxury becomes meaningless if a home can't endure the climate extremes we're facing more frequently.

Ben Caine
September 13, 2024

Palm Springs & LA Architecture: What I Learned on the Road

Ben Caine
September 13, 2024
Palm Springs & LA Architecture: What I Learned on the Road

I toured Venice, LA and Palm Springs, from William Krisel's Mid-Century Modern homes to US timber construction, comparing it all to Passive House standards back home.

Ben Caine
February 2, 2024
passive house

Passive House in a Perth Heatwave: Real Performance Data

Ben Caine
February 2, 2024
passive house
Passive House in a Perth Heatwave: Real Performance Data

A Perth Passive House owner shares real summer performance data: energy use, indoor temperatures, and the strategy used to stay cool with minimal air conditioning.

Tagged: passive house, airconditioning, summer, cooling

Ben Caine
November 23, 2023

How to design a low-cost passive house

Ben Caine
November 23, 2023
How to design a low-cost passive house

A real Perth Passive House delivered for under $500k in 7 months. See the design strategies that keep costs down without compromising performance.

Ben Caine
November 13, 2023

Tips to find the perfect block for your Leanhaus

Ben Caine
November 13, 2023
Tips to find the perfect block for your Leanhaus

Selecting a site to build a new Passive House standard in suburban Perth requires careful consideration of a range of factors, including walkability, site orientation and cost of the lot. By selecting a site that is highly walkable, well-oriented towards the sun, and reasonably priced, it is possible to create a highly energy-efficient building that is both sustainable and affordable.

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Leanhaus, Perth, WA, 6000, Australiaben@leanhaus.com.au