Business Details
14 Years
experience
PassivHaus Architects in Surrey
Maiia Williams Architects is a Surrey-based architectural firm dedicated to creating visionary designs that adhere to ultra-low energy standards. Our expertise lies in blending PassivHaus principles with creative and technical excellence to deliver energy-efficient builds of exceptional quality. We specialise in retrofitting historic properties to the rigorous EnerPHit standard, transforming outdated homes into sustainable, comfortable spaces. Our process begins with a thorough building and site survey, followed by collaborative design and planning, technical design with operational energy analysis, and meticulous construction oversight.We prioritise sustainability through advanced insulation, airtight construction, and renewable energy integration, ensuring buildings harmonise with the environment while offering long-term cost efficiency. Our commitment to quality and affordability extends to using eco-conscious materials and maximising thermal performance. With a foundation in top-tier education and professional registration since 2012, we bring technical precision and creativity to every project, serving Surrey and South West London with a focus on future-proof, zero-carbon solutions.
Services
Surveying
Design and Planning
Technical Design
Construction Oversight
Retrofitting
Details
- Year established: 2012
Highlights and features
- Certified PassivHaus Designer with expertise since 2012.
- Specialise in zero-carbon retrofits and new builds using EnerPHit standards.
- Commitment to sustainability through advanced insulation and renewable energy integration.
- Collaborative process ensuring client needs are central to every design.
- Proven success in achieving 100% airtightness targets during construction.
Associations and certifications
- PassivHaus Institute
Services
PassivHaus Design
Our PassivHaus design service focuses on creating ultra-low energy buildings that meet stringent international standards. We integrate advanced insulation, airtight construction, and mechanical ventilation systems to ensure optimal energy efficiency. Clients benefit from reduced energy bills and enhanced comfort, with designs tailored to both new builds and retrofits.
EnerPHit Retrofitting
Specialising in EnerPHit retrofits, we transform outdated buildings into sustainable, energy-efficient spaces. Our process includes thermal upgrades, airtightness improvements, and renewable energy integration. This service ensures historic properties retain their character while meeting modern sustainability standards, offering long-term cost savings and environmental benefits.
Technical Design
Technical design involves precise planning of building elements to ensure compliance with PassivHaus standards. We collaborate with sustainable supply chains and use PHPP energy modelling to guarantee efficiency. This service ensures seamless execution of complex details, minimising heat loss and maximising structural integrity.
Construction Oversight
Our construction oversight ensures adherence to sustainability standards throughout the building process. We provide airtightness training, quality assurance inspections, and contract administration. This service guarantees that projects meet design specifications and achieve energy efficiency targets without compromising on quality.
Sustainability Consultation
We offer expert consultation on sustainable materials, whole-life carbon analysis, and renewable energy integration. Our advice helps clients make informed decisions that align with environmental goals. This service supports cost-effective, future-proof solutions tailored to individual project needs.
People
Maiia Williams
Founder & Architect
Maiia Williams is a certified PassivHaus designer and registered architect with over a decade of experience. She founded the practice to deliver sustainable, zero-carbon homes in Surrey and South West London. Her expertise includes retrofitting historic properties and advising on whole-life carbon strategies.
Questions
What is PassivHaus and how does it benefit my home?
PassivHaus is a rigorous energy efficiency standard that ensures ultra-low energy consumption. It provides superior comfort, reduced utility bills, and a smaller environmental footprint through advanced insulation and ventilation.
Do you work on both new builds and existing properties?
Yes, we specialise in both PassivHaus new builds and EnerPHit retrofits for existing homes, ensuring sustainable solutions tailored to each project's unique needs.
Which areas do you serve?
We primarily serve Surrey and South West London, including Elmbridge, Richmond, and Kingston-upon-Thames, with a focus on local sustainability challenges and planning requirements.
How do you ensure construction meets sustainability targets?
We use PHPP energy modelling, rigorous site inspections, and airtightness testing to guarantee compliance with PassivHaus standards and client sustainability goals.
Can you help with planning permissions for retrofits?
Yes, we navigate complex planning consents for retrofits and new builds, leveraging experience with local authorities to streamline approvals.
What materials do you recommend for sustainable builds?
We prioritise eco-conscious materials like mineral wool insulation, timber, and BRE Green Guide-certified products to minimise environmental impact while ensuring durability.
