Work with an Experienced Certified Passivhaus Consultant
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If you are looking for a Passivhaus consultancy, Richard Clayson offers expert independent guidance to help you design, build or upgrade a home that delivers exceptional comfort, reduced running costs and outstanding energy efficiency.
As a Certified Passivhaus Consultant, Richard works with homeowners, architects, developers and builders across East and West Sussex, Surrey, East Hampshire and South West London. Whether you are planning a new build, retrofit or EnerPHit standard renovation, we will ensure your project meets the exacting standards of the Passivhaus methodology.
Passivhaus Design & Modelling
As an experienced Passivhaus consultant, Richard supports projects from concept to completion, helping you make design decisions that meet both your goals and the Passivhaus standard. Services include:
• Early-stage advice on site orientation, building form and insulation strategy.
• Detailed Passivhaus Planning Package (PHPP) modelling to predict energy use.
• Guidance on high-performance windows, airtightness and ventilation.
• Identifying and eliminating thermal bridges.
• Reviewing architectural plans to ensure optimal building design for Passivhaus compliance.
The result is a design that not only meets Passivhaus certification requirements but also provides a healthy indoor environment, consistent year-round comfort and reduced energy costs.
Passivhaus Retrofit
Transforming an existing building into a low-energy home is one of the most challenging and rewarding projects you can undertake. Richard has first-hand experience, having built his own property to meet the EnerPHit standard and winning the 2018 RICS Award for best residential building in the South East.
Through his Passivhaus consultancy, Richard can:
• Assess your property and advise on retrofit potential.
• Develop a staged upgrade plan for budget-friendly improvements.
• Model performance outcomes and energy savings.
• Recommend materials and features to maintain airtightness and thermal efficiency.
• Provide documentation for EnerPHit certification.
Benefits of Passivhaus
Working with a Passivhaus consultancy offers more than just compliance with an energy standard, it delivers lasting lifestyle and financial benefits. A well-designed Passivhaus home:
Maintains consistent, comfortable temperatures all year round.
Requires less heating and cooling with better quality construction.
Provides excellent air quality through controlled ventilation.
Requires less heating and cooling with better quality construction.
Minimises drafts, damp and condensation.
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Why choose Richard Clayson Ltd?
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MRICS Chartered Surveyor with over 30 years of experience.
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Extensive background in residential, commercial and historic property projects across the South East.
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Clear, concise reports and valuations.
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Fast turnaround of reports, typically within 5 working days.
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Independent and client-focused.
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Friendly, approachable and always happy to answer questions.
Richard’s expertise includes work on everything from city office blocks to listed manor houses, giving him the depth of knowledge to advise confidently on a wide variety of properties.
Who We Work With
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Homebuyers and self-builders
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Architects and design teams
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Specialist and high-end building companies
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Developers seeking low-energy credentials