BRE Green Guide

The BRE Green Guide to Specification provides an independent assessment and endorsement of the law for the environmental impact of construction materials. Materials and components are assessed in terms of their environmental impacts, across their entire life cycles. The guide provides easy-to-use guidance on how to make the best environmental choices when selecting construction materials and components.

The reliable information will help specifiers to design, construct and manage buildings to reduce the environmental impacts. These rankings are presented on a A+ to E scale, based on life cycle assessments (LCA), using environmental profiles methodology. The guide covers a range of generic building types and elements.

A majority of Brett products are top rated, meaning you can specify our hard landscaping systems with the confidence of achieving an A or A+ Green Guide rating. In turn, this positively contributes when constructing specifications using BREEAM to assess the sustainability characteristics of the structure and its hard landscaping.

Printed versions can be purchased on or click on the link to visit the BRE Green Guide to Specification website.