Business Details
22 Years
experience
Sustainable Architecture & Community Regeneration Experts in London
Jan Kattein Architects is a London-based practice dedicated to community-driven design and sustainable architecture. With over two decades of experience, we specialise in redefining urban spaces through regeneration projects that prioritise social and environmental impact. Our work spans high street revitalisation, public realm design, educational facilities, and temporary urban interventions, all informed by collaborative processes involving local communities.We integrate circular economy principles, reclaimed materials, and flexible design strategies to create spaces that adapt to evolving needs. Our ISO 9001 and ISO 14001 accreditations reflect our commitment to quality and environmental stewardship. Recognised with awards including the MacEwen Award for Architecture for the Common Good, we combine architectural innovation with social purpose to deliver meaningful, lasting change.
Services
Community architecture
Urban regeneration
Public realm design
Temporary interventions
Sustainable design
Educational spaces
Workspace creation
Participatory planning
Details
- Year established: 2004
Highlights and features
- We have 20+ years of experience in community-led architectural regeneration
- Our projects use 60%+ reclaimed materials and circular construction methods
- We guarantee participatory design processes involving local stakeholders
- We hold ISO 9001 and ISO 14001 quality and environmental certifications
- Our work has won 15+ awards including the MacEwen Award for Common Good
Associations and certifications
- ISO 9001
- ISO 14001
What people say
Exceptional community engagement
Innovative sustainable design
Transformative urban regeneration
Collaborative approach
Award-winning expertise
Services
Community architecture
We create architecture through collaborative processes that engage local communities from inception to completion. Our approach ensures designs reflect genuine community needs while fostering social cohesion. Projects integrate sustainable materials and adaptable spaces that evolve with changing requirements. This service particularly benefits areas requiring regeneration where community buy-in is crucial for long-term success.
Urban regeneration
Our regeneration projects transform underutilised urban spaces into vibrant community assets. We specialise in high street revitalisation, temporary land use strategies, and creating mixed-use developments that balance commercial and social needs. Each project incorporates environmental sustainability principles while addressing local economic challenges through strategic design interventions.
Public realm design
We design inclusive public spaces that enhance civic life and environmental quality. Our work includes parks, plazas, and streetscapes that prioritise accessibility, ecological value, and community interaction. Designs incorporate flexible elements that accommodate diverse uses while maintaining aesthetic coherence and functional longevity.
Temporary interventions
We develop adaptable temporary structures and spaces that address immediate community needs while testing long-term possibilities. These projects often utilise reclaimed materials and demountable construction methods, allowing components to be repurposed elsewhere. This approach enables experimental urban solutions with minimal environmental impact and maximum community benefit.
Sustainable design
Our sustainability approach combines material innovation, energy efficiency, and ecological integration. We prioritise circular economy principles through material reuse, natural construction techniques, and designs that reduce carbon footprints. Projects demonstrate how environmental responsibility can coexist with functional, aesthetically compelling architecture that serves community needs.
People
Jan Kattein
Director
Founded the practice in 2004 with a focus on collaborative architecture. Holds a Bartlett PhD and has taught architecture internationally. Recognised for integrating social purpose with design innovation through multiple award-winning projects.
Gareth Marriott
Director of Design
Leads design quality across projects with expertise in urban regeneration. Completed notable works including award-winning town centre schemes. Combines craftsmanship with innovative urban strategies to deliver impactful architectural solutions.
Chrysanthe Staikopoulou
Director of Partnerships
Manages strategic partnerships and financial operations. Holds dual Masters from Bartlett and Royal College of Art. Brings expertise in public space regeneration and compliance with ISO standards through practical implementation.
Gabriel Warshafsky
Director of Projects
Leads project delivery with 8+ years of regeneration experience. Specialises in complex urban schemes requiring community engagement. Teaches at Bartlett School and founded educational design collective STORE for widening access to architecture.
Sue Amos
Landscape Architect
Specialises in ecological landscape solutions with 20+ years experience. Former Head of Gardens at Global Generation. Focuses on creating productive urban ecosystems that support both biodiversity and community wellbeing through participatory design processes.
Questions
What architectural services do you specialise in?
We focus on community-led urban regeneration, public realm design, temporary interventions, and sustainable architecture that prioritises social impact.
How do you involve communities in your projects?
We use participatory design workshops, open consultations, and collaborative building processes that empower local stakeholders throughout every project phase.
What sustainability practices do you employ?
We prioritise reclaimed materials, circular construction methods, and adaptive reuse of existing structures to minimise environmental impact.
Which areas do you operate in?
Primarily London boroughs including Camden, Westminster, Enfield, and Waltham Forest, with select national projects.
What accreditations do you hold?
We maintain ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) certifications.
