External standards and commitments

We are accredited to a number of best practice standards and have signed external commitments to raise performance in our industry and beyond.

External standards

  • OHSAS 18001 accreditation for our health and safety management systems across all our activities, an internationally applied British standard.
  • ISO 14001 accredited Environmental Management System across our developments, applied through our Sustainability Brief for Developments.
    ISO 14001:2015 Certificate PDF (228KB)
  • Building Confidence accreditation for our key construction suppliers, recognised as the standard for supplier excellence in the construction industry, audits of management systems and compliance with statutory requirements across all business areas are administered by Achilles.

External commitments

CDP: Signatory to the Road to Paris 2015 commitment to business leadership on climate.
Visit the CDP website
Considerate Constructors Scheme (CCS): Client Partners.
Visit the CCS website

Construction Logistics and Cyclist Safety (CLOCS): Champions and supporters of the CLOCS Working Group.
Visit the CLOCS website

Prompt Payment Code: Signatory to the UK Government’s Prompt Payment Code since it launched in 2010.
Read about our support for the Prompt Payment Code

RE100 compliant: Committed to purchasing electricity from renewable power in our own space and across service charge space. 
Visit the RE100 website

RICs Inclusive Employer: Signatory to the RICS Inclusive Employer Quality Mark.
Visit the RICS Inclusive Employer website

RICS Service Charge Code
Download the Service Charge Code


The Code for Leasing Business Premises
Download the Commercial Lease Code PDF (131KB)
UN Global Compact: Signatory to the UN Global Compact since 2010.
Read our 2016 communication on progress

For our performance on external benchmarks: Sustainability indices.

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