01277 355 970


Jason Mills and Oliver Booth run Writtle Forest Consultancy. They have worked within the Arboricultural and Forestry industries for over twenty years.

Planning and development, in relation to trees and ecology, is a major part of Writtle Forest Consultancy's work. We have both worked on many large and exclusive development projects, for national house builders, public trusts, local authorities, statutory fire and rescue services, multinational consulting, construction and development companies, institutions and government departments.

We are equally at home when working on small planning projects, such as extensions or 'demolish and rebuild'. Our focus is always toward achievable solutions working for our clients’ requirements whilst maintaining the ecological and arboricultural integrity of the project.

Trees generally face increasing pressure within the built environment. We advise on trees in relation to subsidence and structural damage, as well as planting schemes above and below ground.

Management of trees is a fundamental aspect of the company. Whether this involves open space, large tracts of land or private gardens, where the client is responsible for the tree stock. We have established experience in creating suitable strategies for management, compliant with all legal requirement.

Our tree inventory surveys and tree risk assessments provide suitable management plans for tree owners.

We further specialise in specific investigation of tree health and condition:
Specific pest and disease can be established both within individual trees, whole tree stock and woodlands through DNA sequencing.

We undertake soil analysis to establish if there is a requirement for remediation and to enable suitable soil management plans, in relation to individual trees, woodlands and whole tree stock.

Individual trees (such as high value, prominent or Ancient trees) can be internally inspected with the use of sonic tomography, resistance drilling and specific software, to interpret decay and quantify risk of wind throw. Information and analysis of such information allows us to present specific, integrated management systems for trees and woodlands.

The company was originally established in 1995 to manage Writtle Forest (from where we now take our name).

This is an ancient, semi natural woodland of approximately 600 acres, first recorded in the Doomsday book.


I have been working with Writtle Forest Consultancy for over 2 years now, there have now become our primary supplier for all of our arboricultural consultancy requirements. Their ability to work to mine and my client’s tight deadlines is second to none, while still producing a quality product.

Rob Potter (Senior Projects Manager)
Hortech Ltd

We have worked in partnership with Writtle Forest Consultancy on many projects and found their services and advice on all things arboricultural to be excellent, adding value to each scheme. Writtle Forest provide a friendly and professional service, proving themselves invaluable consultants through the integrity and robustness of their work.

Rachel Crookes (Ecologist)
Eight Associates Sustainability Consultants