Ecological Design is a Sydney consultancy providing independent unbiased sustainability assessment and advice.      

We strive to help households and businesses conserve the planet's finite natural resources for all future generations. 

"I am very pleased with the quality & detail of the energy analysis Ecological Design provides.."
​Charles Wright, Palaestra Studio ​

"As a consultant, he is a highly valuable member of my project team.."
Damian O'Mahoney, DOM Design

"We would recommend John to anyone seeking a consultant with detailed knowledge across the spectrum of urban sustainability issues.” 
Dirk G. Petersham, NSW

Our Services

Designers & builders

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Home Energy Ratings (NatHERS )
BASIX certificates
Rainwater harvesting systems 

Home owners

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Home energy consultation
Home sustainability consultation
Solar Power Advice

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DIY

Training

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Rainwater harvesting workshops
Household energy efficiency workshops
​Safe greywater reuse workshops

How to size your rainwater tank

How to select a solar power system

Make your home more energy efficient

Our Team

John Caley, David Winterton and Matilde Martin have over two decades of experience in residential environmentally sustainable design covering assessment, design, specification and training.  We use in-house skills and knowledge along with computer modelling to provide detailed assessment of the energy and water efficiency of proposed designs. We work with designers, builders and clients to develop cost-effective sustainable solutions. We pride ourselves on maintaining our independence from all suppliers of products and services. ​ read more