Advice & Resources

Not sure which tree survey you need? Our plain English guide explains every survey type — BS5837, risk assessments, mortgage reports, decay detection, and more

Seeking expert advice is crucial when applying for planning permission, managing trees or woodlands, ensuring trees pose no risk to people or property, and investigating potential subsidence claims, among other concerns.

A considerable range of UK statute legislation and court precedents governs best practice for those responsible for tree safety.

A BS5837 Tree Survey is a specialist assessment, officially titled "Trees in relation to design, demolition and construction—Recommendations" (2012), used in the UK planning process.

Frequently asked questions

We provide a wide range of professional services to meet your project.

Last updated: Jul 2026

Biodiversity Net Gain (BNG) is a legal requirement under the Environment Act 2021. It mandates that developments must leave the natural environment in a better state than before — a measurable minimum 10% net gain, secured for at least 30 years. Note that from 6 August 2026, developments of 0.2 hectares or below are exempt. See our BNG guides for the current position.

Last updated: April 2026.

A guide to the types of development that will be exempt from the mandatory biodiversity net gain (BNG) requirements.

Information and valuable resources and explanations for tree in the urban environment and development

Tree Preservation Orders (TPOs) and conservation areas are key aspects of urban planning. However, they can be fraught with difficulties, particularly if documents aren’t accurate.  We can work with Local Planning Authorities (LPAs) to ensure that things go smoothly.

To assess decay, you can use a sounding mallet, long metal probe, and tape measure. If you notice any of these signs, you should have a professional arboriculturist or tree consultant inspect your trees