Sustainable Design

At Stride Treglown, as designers, we recognise that we have a responsibility – and importantly an opportunity – to make a positive contribution to the environment through the buildings and places that we create.

Therefore we approach each project with a view to maximising the possibilities for environmentally-considered design, which is essentially just ‘good design’. This approach need not necessarily make designs more expensive, and in fact often saves them money in the longterm, but has the power to inspire, inform and make genuine improvements to our environment and quality of life.

This means we seek ways to limit any potentially negative environmental impact that our designs may have in terms of carbon emissions, pollution, resources, waste or ecology. But at the same time actively exploring opportunities for them to have a positive impact; through re-use, regeneration, using sustainable forms of energy and promoting community, wellbeing, sustainable travel, biodiversity, beauty and delight.



Whether designing at community scale, for a workplace or a home, we approach sustainable design in the same way:

We also offer the following specialist sustainable design services:


Passivhaus is a tried and tested design principle based on the core ethos of achieving a healthy, comfortable and stable environment for end users driven through the control of air quality.

The concept focuses on reducing the requirement of energy use in the first instance, rather than the generation of a higher energy demand through renewables. It is a robust and effective way to achieve the challenge of carbon reduction for the built environment sector.

Passivhaus is an exacting quality assurance process giving the client confidence in the built performance from an early stage. The closely monitored design and build process ensures reduced heat loss through the building fabric, resulting in greatly reduced space heating demand throughout the year.

Stride Treglown have in-house Certified European Passivhaus Consultants/Designers providing expertise in designing to Passivhaus standards. The service provides guidance, advice and assessment for all types of buildings for both principle and certification standard.

Sustainable Design Projects

Applied Research and Development
Civic, Community & Culture
Hotels & Leisure
Non-urban Living
Office and Workplace
Owner Occupier
Public Clients
Research and Incubation
Student Living
Sustainable Living
Technology & Innovation

Sustainable Assessment

Stride Treglown has a dedicated team of assessors who are trained and licenced to undertake and provide advice regarding a large range of sustainability assessments and evaluations. Early advice and input by our assessors contributes to the delivery of cost effective and deliverable sustainable solutions.

Our Cardiff office that we designed is carbon neutral and the first privately funded office scheme in the UK to achieve a BREEAM ‘Outstanding’ score in its post construction certification.

Assessment and evaluation services we provide include:

Other Sustainability Services

Our Sustainability Consultants also provide a range of other specialist services, which include:

  • BREEAM Accredited Professional – providing detailed direct advice to our clients to assist the achievement of BREEAM ratings
  • Sustainability Advocate – representing client sustainability interests as part of a design or project team
  • Expert Witness – providing expert advice, guidance and opinion
  • Travel Plans
  • Sustainable Travel Strategy Advice
  • Energy Benchmarking

Our Clients

  • Aberdeen Asset Management
  • Abertawe Bro Morgannwg University Health Board
  • Airbus
  • Amec
  • Arena Seating
  • Associated British Ports
  • Balfour Beatty
  • Barclays
  • Barratt Homes
  • Bettws Boys and Girls Club
  • Bloor Homes
  • BNP Paribas
  • Borough of Poole Council
  • Bournemouth University
  • Bouygues Construction UK
  • Bristol City Council
  • Bristol International Airport
  • Brymain Investments
  • Cardiff and Vale University Health Board
  • Cardiff Bay Retail Park Trust
  • Carmarthenshire County Council
  • Castlemore Securities
  • Chichester College
  • City and Council of Swansea
  • Dorset County Council
  • DWP
  • Eastleigh Borough Council
  • Ernst and Young
  • Exeter College
  • GE Aviation
  • GE Healthcare
  • Hafod Housing Association
  • Hallam Land
  • HCA
  • Health and Safety Executive
  • Hemsley Fraser
  • Hendre Housing Association
  • ISG Construction
  • Kier Group
  • Kingfisher Housing
  • Laing O'Rourke
  • Lend Lease
  • Linden Homes
  • Martock Parish Council
  • Midas Construction
  • Ministry of Defence
  • Ministry of Justice
  • Morgan Sindall
  • MRW Building Services
  • National Composites Centre
  • Neath Port Talbot County Borough Council
  • North Bristol NHS Trust
  • North Somerset Council
  • Parkhall Estates
  • Persimmon Homes
  • Plymouth City Council
  • Plymouth Hospitals NHS Trust
  • Reynolds Porter Chamberlain
  • Rhondda Cynon Taf County Borough Council
  • Rockspring
  • Rowan Properties Partnership
  • Royal Agricultural Association
  • Royal Devon and Exeter Hospital
  • Royal Devon and Exeter NHS Foundation Trust
  • Royal Holloway, University of London
  • Sainsbury’s
  • Saracens
  • Schroeder Asset Management
  • Sedgemoor District Council
  • Somerset County Council
  • South Somerset District Council
  • Sovereign Land
  • Stride Treglown
  • Sustain
  • Swansea University
  • Taylor Wimpey
  • Terrace Hill
  • The University of Exeter, on the University’s Cornwall Campus
  • Torbay Council
  • Torfaen County Borough Council
  • Unite
  • United Welsh Housing Association
  • University of Bristol
  • University of Chichester
  • University of Plymouth
  • University of the West of England
  • URS
  • Vinci
  • Virgin Media
  • VOSA
  • Warings
  • Wessex Water
  • West Berkshire Council
  • West Sussex County Council
  • Westerleigh Group Ltd
  • Willmott Dixon