Bricks & Mortar

Some of the building materials that make up Etude. Case studies, articles and the occasional bit of news. We listen. We calculate. We communicate clearly. We care about what we do.

SAP Conversion Tool

Etude have developed an excel tool that converts SAP 10 results to design stage predictions which are similar to PHPP.

A section through two window frames, one double glazed and one triple glazed

Fair comparison of glazing whole life carbon

Triple glazing gives lower whole life carbon than double glazing. Here’s our analysis.

Carbon budgets

We should use carbon budgets to maintain a healthy and sustainable climate balance on Planet Earth.



Last year we decided to raise awareness of the importance of phasing out fossil fuel heating, starting the #endgasnow campaign with other companies.

The (low) embodied carbon of solar PV

There is a myth that solar PV generation doesn’t ‘payback’ the initial embodied carbon that it takes to produce. We don’t think this is true.

A Net Zero Toolkit for homes

The Net Zero Toolkit covers a range of steps from pre-planning through to construction to help new and existing homes achieve net zero carbon.

The future of SAP calculations

Writing the brief for the next version of SAP, the statutory energy calculation software for residential construction.

Easi Guide to Passivhaus Design

Collaboration with Levitt Bernstein to produce a guide with 10 clear principles for achieving Passivhaus on multi-residential schemes.

Halving energy use in buildings

Collaborating with Julie Godefroy to produce the background report for recommendations to the Green Construction Board.

Thoughts and support for Extinction Rebellion

How XR can and should shape our work as building professionals. We support the urgency and focus of XR.

Proposing a renewable future for Bermuda

From consultation response to electricity grid analysis to crowd funding.

What a 1.5°C target means for UK buildings

Translating large scale carbon emission reduction targets into useful metrics for a local level.

Measuring site waste by material

Investigating the actual quantities of waste generated during construction.

Predicted energy consumption in BREEAM

Earn BREEAM credits, and more importantly get a more reliable estimate for future running costs, energy consumption and carbon emissions.

Heat pumps for low carbon heat in London

The key conclusions from our study for the GLA into the implications of a more widespread update of heat pumps in London. Download the full report here.