Specialist BS5837 & risk management consultancy grounded in over 20 years of experience in tree management.

Clear, practical expert advice about trees with cost-effective, realistic recommendations.

Based on the edge of North Norfolk, we serve clients locally and nationwide, working on projects at all scales from private residents gardens with a handful of trees to national infrastructure schemes and estates with thousands.

We specialise in arboricultural consultancy for planning and development to BS5837, but we also do tree risk management and provide tree law advice.

Our innovative approaches match your timeline and budget and avoid a one-size-fits-all format. This means work for your project is specific to your needs - not just something off the shelf.

A comprehensive understanding of the ever-changing legal guidance and arboricultural planning requirements.

We know that your project doesn’t exist in a vacuum and that trees are only one concern - so we stay ahead of best practice across a number of sectors to make sure our advice is useful in the long term.

Our services

Sorensen Tree Consultancy Planning and Development background image - an aerial view of a house under construction with trees on the left side protected by barriers to BS5837.

BS5837 Planning & Development

From early informal guidance and pre-app discussions through to initial BS5837 tree surveys, tree constraints drawings and feasibility studies, supporting assessments and custom documents for planning submission and post-planning construction.

Public use of a park with people gathering under trees subject to tree risk management

Tree Risk Management

In addition to our extensive experience inspecting trees, we are Lantra Professional Tree Inspection certificated and registered users of the Quantified Tree Risk Assessment (QTRA) approach. We undertake risk assessments for all scales of site.

A shadow of a regularly pruned tree cast on the wall of a block of flats suggesting tree shade issues resulting from a protected tree..

Protected Trees & Tree Law

Where trees are protected by a Conservation Area, are subject to a Tree Preservation Order (TPO) or there are Felling Licence requirements, we can negotiate and specify works to trees, make applications or notifications.

 Got a question?

Tony Sorensen Director of Sorensen Tree Consultancy

Our Director - Tony Sorensen

Tony has been an arboricultural consultant (and occasional LPA Tree Officer) since 2006 focusing on BS5837 planning surveys & assessments, tree risk management and providing arboricultural legal advice for a range of clients and project scales.

Quantified Tree Risk Assessment (QTRA) logo
Arboricultural Association Profession Member logo