Planning experts, urban designers, architects, sustainability & renewable energy consultants

For over 10 years, we have been delivering complex projects for a national client base of developers, investors, operators and local communities.

Working within this constantly evolving industry, and navigating its policies and politics takes an experienced and creative team of people. We are experts in our own fields, trusted advisors, and partners in bringing together integrated solutions for the benefit of our clients. We are a very close-knit team and genuinely enjoy working together to deliver the best results.

Our services


Our experienced team has worked together for many years and employs a wide range of skills to provide a holistic approach to masterplanning, creating design responses that provide a logical solution – quickly.

We produce legible studies, which ‘tell the story’ of a scheme for major regeneration frameworks and planning applications. The ability to communicate in a clear and concise graphical form is used in all areas of the practice and is an invaluable resource employed in making the case for all projects in the office.

We understand the complexities and intricacies of the planning system and the importance of ensuring individual disciplines contribute to the overall masterplan concept from inception. We have successfully delivered large, sustainable, mixed-use strategic sites across London and the South East where amalgamation of disciplines has been essential to unlocking development potential.

  • Urban design strategies
  • Masterplan strategies
  • Design Codes
  • Hospital Estate Strategies
  • Public engagement


Good design is driven from each project’s unique set of opportunities, our architectural team has the experience to identify and maximise the opportunities of any site. We ensure that the design response is grounded in our projects’ commercial objectives and delivered in the shortest timeframe possible.

Building design adds value rather than cost because it increases the potential of the site. However, it must be delivered with a positive interaction and experience – aligning with local character, enabling sustainable development, and promoting sustainable lifestyles.

Our approach draws on our multi-discipline team of experts, including planners, urban designers and energy and sustainability consultants, to find a design solution that delivers a planning permission that maximises the value of the site.

  • Large scale mixed-use regeneration projects
  • Commercial
  • Hotels
  • Schools
  • Leisure
  • Heritage projects
  • Individual houses nt


The assessment of planning potential and risk is key to realising the highest value in all development opportunities, whether constrained and complex Central London sites, Green Belt releases, or heritage assets. The challenge is in balancing National and Local policies with individual project objectives.

Our planning team provides high quality advice and expertise in navigating the decision-making process and driving complex development projects.

The close collaboration across our practice also ensures that our planning strategies and approaches are always aligned with the knowledge, advice and best practice of our colleagues in urban design, architecture, energy and sustainability.

Scheme Architecture by 21st Architecture Ltd

  • Site appraisals
  • Planning and listed building applications
  • Management of scheme alterations and implementation
  • S106 negotiations
  • Objections for third parties
  • Planning appeals and inquiries


Sustainability is a fundamental principle of development, as planning permission is dependent on carbon profiles, mitigating climate change impacts, and environmental credentials. Our focus is on ensuring cost effective, compliant and wholly sustainable solutions for our clients, from concept design through to completion of each project.

We have worked across some of London and the South East’s most exciting and high profile projects, defining first class energy solutions along with integrated strategies for sustainable development.

We offer our clients services and solutions that are developed with a strategic view, bringing together our in-depth knowledge of sustainability policy requirements and assessment methodologies. We combine these with the technical and practical understanding of our in-house planning, architecture and design teams and our engineering partners.

  • Renewable energy strategies
  • Sustainability strategies
  • Part L compliance
  • S106 Agreements


We use EIA as an opportunity to support and justify sustainable development proposals. Our vast EIA team experience has been developed through our involvement with high profile sites across the UK. As part of these projects, we have learned to navigate the many complexities of the regulatory framework.

We provide strategic advice from the initial scoping and design stages to the preparation of technical Environmental Statements, as part of the planning application programme.

We work closely with our planning and architectural colleagues to ensure delivery of excellent planning, design and sustainable development objectives. In addition to providing direct advice across our disciplines, we ensure that our clients and project teams are kept informed of the ever-changing policy framework at local, regional and national levels.

  • EIA screening and scoping
  • EIA coordination
  • Environmental Statements
  • Sustainability and climate change assessments
  • Specialist consultant appointment advice
  • EIA audits

Some of our most recent projects

To contact us call +44 (0)20 7324 2662 or use the form below