Colson Stone Practice is an award winning landscape architectural consultancy registered with the Landscape Institute since 1989.
Christian Sweet is also a Member of the Society of Garden Designers.

We aim to build long term, collaborative relationships with our Clients. We pride ourselves on attention to detail and using our extensive knowledge and experience to produce strong, elegant design solutions. This drive for quality results in the highest standard of delivery on all of our schemes.

We have been commissioned on a wide range of prestigious projects throughout the UK and Europe. Our Clients include private individuals & estates, developers, charitable trusts, local authorities and Government bodies.

We regularly work with architects, engineers, planning and environmental consultancies.
Much of our work comes from personal recommendation and repeat commissions.

We provide a full range of professional services which include:

Landscape Design (Masterplanning & Garden Design)
Historic Landscape Conservation & Management
Landscape Planning
Landscape & Visual Impact Assessment
Expert Witness Evidence for Planning Inquiries
Contract administration, co-ordination & management of works on site
Programming & overseeing long term Landscape Maintenance Contracts

The Partners are:

Christian Sweet BA (Hons) LA, Dip (Hons) LA CMLI MSGD
Debbie Sweet BA (Hons) LA, Dip (Hons) LA CMLI

Landscape Design

Landscape Design

We have extensive experience in the design & implementation of a variety of projects in both the private and public sectors. These include country estates & gardens, urban parks & squares and residential & commercial developments.
Historic Landscape Conservation

Historic Landscape Conservation

We are one of the leading practices advising on the conservation of historic landscapes, parks & gardens. We have more than 25 years experience in this field and have worked extensively with English Heritage. We have prepared over forty Conservation Plans for a range of Grade I, II* & II registered landscapes – many of which have formed the basis for successful grant applications.


Landscape Planning

Landscape Planning

We regularly prepare Landscape & Visual Impact Assessments required in conjunction with our landscape design work. We also have expertise in the preparation and presentation of expert witness evidence at Planning Inquiries.