Modern two-storey house with a flat roof, timber cladding exterior, large windows, and a driveway with an electric car, architecture by Gresford Architects.
PassivHaus: ultra-low energy homes for a sustainable future
At Gresford Architects, we believe that the most sustainable building is one that is designed to work efficiently from the ground up. PassivHaus is the gold standard for ultra-low energy buildings, delivering unparalleled comfort, exceptional air quality, and dramatically reduced energy costs. Whether you are embarking on a new build or upgrading an existing home to EnerPhit standards, our expertise in PassivHaus design ensures a future-proofed, high-performance building that significantly reduces environmental impact.
We design PassivHaus-certified homes that require minimal heating and cooling, using cutting-edge building science to create spaces that are healthier, more comfortable, and vastly more efficient than standard buildings.
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What is PassivHaus?
PassivHaus is a rigorous energy performance standard that prioritises efficiency, comfort, and sustainability. Unlike conventional buildings, PassivHaus homes are designed to maintain an optimal indoor climate with minimal reliance on mechanical heating and cooling. By reducing energy demand by up to 90% compared to standard homes, PassivHaus offers a long-term solution to rising energy costs and climate concerns.
The five core principles of PassivHaus:
Superior insulation – Reducing heat loss to maintain stable indoor temperatures year-round.
Airtight construction – Preventing draughts and energy leakage for enhanced efficiency.
High-performance windows & doors – Optimised glazing to maximise solar gains while preventing heat loss.
Thermal bridge-free design – Eliminating weak points in insulation to prevent heat escaping.
Mechanical ventilation with heat recovery (MVHR) – Ensuring continuous fresh air while retaining heat, improving indoor air quality and comfort.
[Learn More About PassivHaus Standards →]
Our approach to PassivHaus design
At Gresford Architects, we apply PassivHaus principles to a wide range of projects, from bespoke new builds to EnerPhit-standard retrofits. Our approach ensures that every design is optimised for performance, comfort, and long-term sustainability.
1. Passive solar design & orientation
Maximising free solar energy to naturally heat the home while using shading techniques to prevent overheating in summer.
2. High-performance building envelope
Ultra-insulated walls, roofs, and floors combined with precision-engineered airtightness to achieve minimal energy demand.
3. Smart ventilation & indoor air quality
Using MVHR systems to deliver a constant supply of fresh, filtered air while retaining up to 95% of heat energy.
4. Renewable energy integration
Incorporating solar PV, heat pumps, and energy storage systems to create truly net-zero homes.
5. Longevity & future-proofing
Designing for durability and adaptability, ensuring buildings remain efficient and resilient for generations.
[Discover How We Design for PassivHaus Performance →]
PassivHaus in action: case studies
Please note that the following case studies are placeholders and will be updated with detailed project information upon client approval.
Project 1 – TO BE REPLACED
A new-build PassivHaus home with a timber frame, MVHR system, and triple-glazed windows, achieving near-zero energy costs.
Project 2 – TO BE REPLACED
An EnerPhit-certified retrofit of a Victorian townhouse, drastically reducing energy demand while maintaining period charm.
Project 3 – TO BE REPLACED
A sustainable rural dwelling designed to PassivHaus Plus standards, generating more energy than it consumes.
[View Our Projects →]
Why choose Gresford Architects for PassivHaus design?
Certified PassivHaus expertise
As members of the PassivHaus Trust, we have extensive experience in designing homes that meet and exceed the stringent PassivHaus and EnerPhit standards.
Sustainability & energy efficiency leadership
We are committed to creating buildings that lower carbon emissions, reduce reliance on fossil fuels, and provide healthier living environments.
Bespoke solutions for every site & client
No two PassivHaus projects are alike—we tailor each design to optimise efficiency, aesthetics, and occupant wellbeing.
Seamless project delivery
From feasibility assessments to certification, we manage every stage of the PassivHaus process, ensuring precision and performance.
Let’s create a home that works for the future
If you’re considering a PassivHaus or EnerPhit retrofit, we’d love to discuss how we can design a home that is ultra-efficient, comfortable, and resilient.
Book a consultation: Contact Us
Speak to our team: Call us at +44 (0)1865 360 037
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