Business Details
16 Years
experience
Award-Winning Architectural Design & Energy Consultancy
Cityzen is an award-winning architectural practice established in 2010, specialising in sustainable design, energy performance, and compliance expertise. Our multidisciplinary team combines architectural technology, building services engineering, and sustainability consultancy to deliver innovative solutions for commercial, residential, and heritage projects. With a focus on reducing carbon footprints and operational costs, we provide end-to-end support from initial design through to construction, ensuring compliance with building regulations and industry standards. Our team holds professional accreditations including CIAT registration and LABC National Awards recognition.We collaborate with stakeholders across sectors, offering tailored services such as Principal Designer roles under the Building Safety Act 2023, M&E consultancy, and low-carbon strategy development. Our approach prioritises problem-solving, attention to detail, and client collaboration, evidenced by long-standing partnerships with architects, local authorities, and contractors. We maintain transparency through adherence to CIAT code of conduct and deliver projects meeting strict deadlines, budgets, and sustainability targets.
Services
Architectural Design
Energy Consultancy
Principal Designer Services
M&E Consultancy
Sustainable Design
Details
- Year established: 2010
Highlights and features
- We offer 14 years of architectural and energy consultancy expertise since 2010
- Our in-house M&E specialists ensure integrated building design solutions
- We hold CIAT professional accreditation and LABC National Award recognition
- Our multidisciplinary team solves complex design and compliance challenges
- We prioritise sustainability while maintaining aesthetic and functional excellence
Associations and certifications
- LABC
- CIAT
What people say
Excellent experience
Highest standard
Impressive detail
Solutions-focused approach
Dynamic and capable practice
Services
Architectural Design
We provide comprehensive architectural design services for new builds, renovations, and listed properties. Our approach combines aesthetic creativity with technical precision to deliver functional, energy-efficient spaces. Specialising in hotel refurbishments, modular construction, and luxury residential projects, we ensure compliance with planning and building regulations while maintaining design integrity.
Energy Consultancy
Our energy consultancy reduces operational costs and carbon emissions through tailored solutions. Services include building audits, passive design strategies, renewable energy integration, and Part L compliance. We create London Plan energy reports and develop low-carbon strategies for building portfolios, ensuring future-proof sustainability in every project phase.
Principal Designer Services
Under the Building Safety Act 2023, we provide Principal Designer services ensuring regulatory compliance. Our CIAT-registered professionals coordinate design teams, assess building regulations adherence, and manage competency verification for high-risk buildings over 18m. We maintain documentation and facilitate communication between all stakeholders throughout the project lifecycle.
M&E Consultancy
Our in-house mechanical and electrical engineering expertise optimises building efficiency. We design HVAC systems, plumbing solutions, electrical installations, and renewable energy systems. Services include lighting design, data controls, and utility upgrades, ensuring all health and safety regulations are met while enhancing building performance and occupant comfort.
Sustainable Design
We integrate sustainable practices into every project without compromising aesthetics. Our solutions include passive ventilation systems, renewable energy installations, and low-carbon materials. Certified BREEAM assessors guide clients through sustainability standards, achieving energy efficiency targets while maintaining visual appeal and functional excellence in commercial and residential developments.
People
John Smith
Co-Founder & Chartered Architectural Technologist
John retrained in architectural technology after 20 years as a building services engineer. He established Cityzen in 2010 to bridge design and energy performance gaps. As a CIAT-registered Principal Designer and assessment panel member, he specialises in regulatory compliance and multidisciplinary project coordination.
Charlotte Smith
Co-Founder & Sustainability Advisor
Former BREEAM assessor Charlotte brings expertise in low-carbon strategies and sustainability assessments. She co-founded Cityzen to promote energy-efficient design, developing holistic solutions that balance environmental impact with architectural quality across education, healthcare, and housing sectors.
Questions
What architectural services does Cityzen offer?
We provide full architectural services including design, planning applications, building regulations compliance, construction detailing, and project support for residential, commercial, and heritage projects.
How do you ensure energy efficiency in building design?
Our integrated M&E consultancy and energy audits identify savings opportunities. We implement passive design strategies, renewable technologies, and Part L compliance measures to reduce energy consumption and carbon emissions.
Are you compliant with the Building Safety Act 2023?
Yes, we offer Principal Designer services under the Act. Our team includes CIAT-registered assessors who ensure compliance for both standard and high-risk buildings over 18m.
What sustainability accreditations do you hold?
We are CIAT-registered and have delivered BREEAM-assessed projects. Our team includes former BREEAM assessors who guide clients through sustainability standards and low-carbon certification processes.
Can you work on listed buildings and heritage projects?
Yes, we specialise in sympathetic renovations of listed properties. Our expertise balances historical preservation with modern energy efficiency requirements, ensuring compliance with conservation area regulations.
How do you handle multidisciplinary project coordination?
Our in-house team coordinates structural engineers, planners, and contractors. We use collaborative workflows to integrate mechanical, electrical, and architectural elements, ensuring cohesive design solutions from concept to completion.
