Tree Surveys Explained: What Happens and Why You Might Need One
If you own land, manage a property, or are planning building work near existing trees, you may have come across the term “tree survey”, sometimes called an arboricultural survey or tree report. Here’s what it actually involves, why it matters, and when you might need one.
What is a tree survey?
A tree survey is a structured assessment of the trees on a site, carried out by a qualified arborist. It typically records each tree’s species,
size, age, condition, and any visible defects, along with a recommendation for any necessary work and a timescale for that work.
Why might you need one?
The most common reason is planning, if you’re applying for planning permission for work on or near a site with trees, a survey is often a
requirement, and the results can directly influence what you’re allowed to build and where. Surveys are also used for routine risk
management on larger sites, to support insurance assessments after a claim or dispute, and simply for peace of mind if you’re buying a
property with mature trees and want to know what you’re taking on.
What happens during a survey?
An arborist will visit the site and assess each tree individually, checking the trunk, canopy, and visible roots for signs of disease, decay,
or structural issues. They’ll record the tree’s species and approximate age, its height and canopy spread, and its general condition. For
planning-related surveys, they’ll also map each tree’s position accurately and calculate “root protection areas”, zones around the tree
that need to be protected during construction.
What do you get at the end?
A written report, usually including a schedule of all trees surveyed with their condition and recommendations, a categorisation of each
tree's quality and life expectancy (commonly using a standard A to D system), and where relevant, a plan showing tree positions and
protection zones for planning purposes.
How long does it take?
This depends on the number of trees and the size of the site, but a typical residential survey can often be completed within a day, with the
written report following shortly after.
If you think you might need a tree survey, whether for planning, peace of mind, or general risk management, Gem Tree Management can talk you through what's involved and provide a quote based on your site. Get in touch to find out more.