Passivhaus Affiliate

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Membership of the Passivhaus Trust is open to anyone and does not necessarily imply achievement of the Passivhaus standard for buildings or components, or attainment of Passivhaus-related qualifications. Members of the Passivhaus Trust listed include architects, consultants, contractors, manufacturers and other industry professionals, as well as individuals, who support the work of the Trust in promoting the Standard in the UK.

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LAMILUX U.K. Limited

Bury St Edmunds

Lamilux offer industry leading roof light and roof glazing solutions. Our product range includes; rooflight domes, continuous barrel vault roof-lights, EN 12101-2 smoke vent AOVs and large glazed atria. We specialise in the supply and installation of large flat glass roofs. Our rooflight solutions are all free of thermal bridges and we have systems independently certified to the Passivhaus standard.

Website: http://www.lamilux.co.uk

Larry Soper

Harrogate

Laura Plazas

Maidenhead

Ldn Architects LLP

Edinburgh

Website: http://ldn.co.uk

LEAP

Durham

Mark Siddall is principal at LEAP: Low Energy Architectural Practice, is a practicing architect that has a keen interest building performance. Issues of usability and practicality inform his approach and have increasingly led to an appreciation of the need for an integrated, consensus based, design process. He was project architect, and Passivhaus Designer, for 25 award winning, Passivhaus Certified dwellings at the Racecourse Estate, Houghton-le-Spring. He was also project architect on a number of award winning Retrofit for the Future projects that targeted an 80% reduction in carbon emissions. In addition to offering architectural services Mark provides consultancy, energy analysis, project enabling and training for clients, design teams and constructors. Mark has published papers internationally on subjects including; the influence of design and construction defects upon building performance, the quality assurance of building design and construction, whole systems design, environmental management systems, and the impact of glazing systems upon comfort and energy demand. He is a technical advisor to the PassivHaus Trust and a part time Senior Lecturer in Construction at Northumbria University.

Website: http://www.leap4.it

Leeds Environmental Design Associates Ltd (LEDA)

West Yorkshire

We are a multidisciplinary worker owned co-operative of engineers and architects committed to creating sustainable, environmentally friendly buildings. We use our wide experience to make your plans practical and usable. We specialise in healthy and comfortable buildings with net zero operational energy and strive for low carbon emissions across their lifetime. We are proud to offer a fully-coordinated building design including thermal modelling and Passive House design. Our Passive House consultants and low carbon construction and building services specialists work collaboratively with architects and clients to develop designs for net zero and Passive House buildings. Our designs include all aspects of residential and non-residential building services including renewables, heat supply and distribution, water, electrical, fire detection, data services, lighting, security and access controls. We can also provide architectural design and detailing if required.

Website: http://www.leda.coop

Legacy Structural Design

Nottingham

Levitt Bernstein

London

Website: http://levittbernstein.co.uk

LEVO Design Ltd

London

Linktreat Ltd

Norwich

Martin Ingham is an independent consultant specialising in energy efficiency in the built environment. He is a Certified Passivhaus Designer and has a background as a Chartered Civil Engineer and Business Consultant. He has an MBA in Strategic Carbon Management from the University of East Anglia, and has increasingly focused on Passivhaus as being a proven means to deliver low energy buildings. Martin advises clients on their projects from concept through to post-occupancy evaluation. He believes it essential that we ensure our buildings deliver for their occupants - in practice not just in theory. Martin has led performance evaluation studies funded by InnovateUK (formerly the Technology Strategy Board) and by ERDF, of domestic new build and refurbishment, as well as non-domestic new build. Studies include ongoing assessment of the award-winning Wimbish Passivhaus development.

Liv Architects

Flitcham

Website: https://www.livarchitects.co.uk/

LJR+H Architects

Dundee

Mark is an Architect with over 25 years’ experience, and a partner with LJR+H Architects in Dundee. Throughout his career he has been fortunate to work on many challenging, interesting and award winning buildings including the Maggie Centre in Dundee, the Shed and Zinc House, both of which won the Scottish Design Awards best private dwelling in Scotland award. He is a registered as a Certifier of Design for energy systems and hoping to expand on this through Passivhaus design. Mark combines practice with teaching design at the University of Dundee.

Website: http://ljrh.co.uk

Lorraine Whistance

New Radnor

Lorraine Whistance DipArch MCIAT is LW Studio, a small, independent design led architectural practice working predominately in Herefordshire, Shropshire, Worcestershire and Powys, but also further afield. With over 30 years industry experience across a range of sectors, LW Studio has a broad client base from private individuals, developers, housing associations, commercial and educational clients, to charities and community groups. There is consistent emphasis on design, ecology, energy efficiency and buildability, whether on small scale yet often complex refurbishment schemes, or larger new build projects. Although able to provide a full service from inception to completion, every project will naturally vary in the level of architectural involvement. Regardless of scale or complexity, LW Studio works inclusively and collaboratively with clients and consultants to achieve personalised results.

Low Carbon Box

Market Harborough

Low Carbon Box are Sustainable Building Consultants working and partnering with clients, contractors and consultants to deliver low energy and sustainable building solutions. Our key services are: Passivhaus | SAP Calculations | SBEM | EPC | Thermal bridging Calculations | Overheating simulation | Daylight Analysis | Code for Sustainable Homes With a strong Architectural background supported by Building Physics, we understand how buildings go together and the performance expectations from our services and results.

Website: http://www.lowcarbonbox.co.uk

Luft MVHR Ltd

Totnes

Website: http://www.luftmvhr.co.uk

Luths Services

Glasgow

Lùths Services are an independent building services engineering consultancy who specialise in low energy and renewables from design through to implementation. We work closely with architects, builders and clients to give clear, impartial and actionable advice at every stage of your project. Based in Glasgow we work over the UK and have over 18 years experience in renewable and low carbon projects.

Website: https://www.luths-services.com/