Whether you’re promoting a strategic housing development, preparing a detailed planning application, designing an infrastructure project or creating a habitat bank proposal, we will consider every detail. With our expertise, you can make key decisions safe in the knowledge that your scheme will be delivered on time and with positive outcomes for people, places and nature.


Use us to identify potential conflicts early in the development process and devise robust mitigation strategies.

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Rely on our experience in preparing landscape appraisals, giving evidence at a public inquiry and delivering detailed landscape schemes.

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Urban Design & Masterplanning

Whether it’s a masterplan, feasibility study or townscape appraisal, we’ll deliver your project with the maximum detail and minimum fuss.

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Heritage & Archaeology

Trust us to deliver a clear understanding of a site’s archaeological potential and heritage assets.

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Expert Witness

Whatever the scale and nature of the project we take great pride in producing, and presenting, high quality, accessible evidence.

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Expert, pragmatic advice will enable you to understand tree related constraints and identify the best way to develop sites efficiently.

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A career with us

Join our growing team

Want to develop your career as part of a friendly and motivated team of planning professionals? Get in touch today.

Our approach

Balancing commercial pressures with environmental constraints

Involved in a residential development, a major infrastructure project or other building venture?

We consider every detail and identify risks before they become a problem.

Clear, accessible advice

Built on our detailed understanding of the environment, legislation, planning and policy

Appreciation of your commercial objectives

Our service responds to the needs of your business, always aiming to exceed expectations


Brought to you by a bright, energetic and highly skilled team of specialists

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Working with the UK’s leading strategic land promoters and house builders, project managers and government agencies for the last 25 years.

“The Councillors described the application as a ‘flawless gem. Thank you all for your hard work and technical input into the application.”

Jessica Hird, Planning and Design Group

“CSA have provided consultancy work on over fifty residential sites for Gladman with a consistently prompt, professional, and diligent service throughout. Their reports have been so thorough and well-presented that many house builders purchasing our land have retained CSA for their reserved matters / detailed Planning Applications.”

Gladman Developments

"The quality of CSA’s work – their documentation, consultation and collaboration with the design team, statutory authorities and clients – is first class."

Chris Cunningham, Harrison Sutton Partnership

"I am very impressed with the way in which you have dealt with all the multifarious ecological issues, both initially as part of our application submission and, subsequently in dealing with ecological matters which have arisen during its consideration. Your work is always very well considered, well written and speedily delivered. You have been a crucial and much valued member of the team."

Goddard Planning (January 2024)

“Working with CSA over the last five years we have always found them to be a highly professional organisation with a straightforward approach to business. The quality of their advice and reporting is always to a high standard”

Haydn Payne, Martin Grant Homes

"The landscape advice received from CSA has always been professional and thorough and well received by planning officers with whom an excellent working relationship has been established. The benefit of the input received from CSA is evident through the high quality landscapes, open spaces and parks that are being delivered in Ebbsfleet Garden City."

Ebbsfleet Development Corporation (November 2023)