Should you be considering initiating a development endeavor on either residential or commercial real estate, it’s common for the majority of local governing bodies to necessitate a tree survey.
A tree survey refers to an overall assessment or survey of the trees on a site considered for development. It’s usually conducted by a qualified arborist(s) with the goal of locating and determining which trees can be removed and which ones remain.
In most parts of the country, the local cities and counties demand homeowners to provide the results of the tree survey to be granted a go-ahead on their projects.
What we cover
ToggleWhat information is on a tree survey?
The tree survey reveals a lot of information about the condition of the trees on or close to your property. While it mainly wants to find out more about the trees’ health, other key details you’ll find from the survey include:
- The tree’s species is based on its botanical name
- Its physical measurements such as height and diameter
- Total number of trees within the area under assessment, with each tree given a unique reference number
- The structural and physiological health of each tree
- The life expectancy of each tree
- Age of individual trees i.e., young, mature, semi-mature, old, veteran
- Preliminary recommendations for the management of the trees
- Significance and priority for retention of the trees
- Trunk’s diameter at breast height (DBH) and crown radii for the North, East, West, and South Crowns

Some surveys may also provide a tree location plan created using CAD software. The information needs to be as detailed as possible to be useful to every party involved.
Based on these findings, the local council and other parties like the project manager and city arborist will determine which trees to keep and which ones to remove.
The survey data also ensures that protected trees, especially in urban areas, are retained and maintained despite the developments happening near them.
When is a tree survey necessary?
Generally, tree surveys are required whenever anyone wants to commence a land development project in an area with trees. The survey report is a requirement that should be submitted during your application for a development permit.
You will also need a tree survey if you’re extending, changing access, or constructing ancillary buildings on your existing property.
Besides conducting the survey for development reasons, you can also do it if you’re worried about the safety of the trees on your property.
If you have reasons to believe that the trees are dying, fragile, or structurally unstable, a tree survey report will provide the information you need.
Why do I need a tree survey?
Despite popular belief, tree surveys shouldn’t be sought only as an official planning requirement. Every property owner needs a tree survey to understand the health and location of each tree on their property to make the right development decisions.
While this could be expensive through arborist services costs, you’ll be thankful in the long run for investing in the survey.
Here are three key reasons why you need the information from these surveys:
1. To locate protected trees
In most states, there are certain trees protected by law that must not be cut down regardless of the project. Removing such trees could attract hefty financial penalties from the local council.
By conducting a tree survey before a project, you’ll be able to locate all protected trees and ensure that they are preserved during the construction.
2. Landscape designs
Most landscapers and property managers understand that trees in the right location1 can significantly boost the value of a property.
With the information from the tree survey, they’ll be able to determine which trees will be more beneficial when retained.
This allows the landscapers to incorporate the trees in their drafts and designs ensuring it blends seamlessly with other design features.
3. Safety
You also need a survey to identify any health and structural hazards existing on or close to your property. The information from a tree can reveal any diseased trees that might snap off or the weak trees that could come down during a storm.
The survey may also indicate any trees with rotting roots, and those whose roots are piercing into your home’s foundation.
Based on these findings, the professional arborist may give you practical tree management tips to help you avert the dangers before they happen.
This could be anything from removing the dying trees to pruning and trimming the sick trees. Either way, you’ll get to live in a safer property.
When is a tree survey not required?
If your property lacks trees or has a few scattered trees, there’s a high chance that you won’t need a tree survey. Nevertheless, this doesn’t mean that properties with fewer trees are excused from conducting tree surveys.
If there’s a protected tree on your property, you’ll still need to do the survey and provide a detailed plan on how you’ll proceed with your project without cutting down and completely removing the tree.
In most cases, you also won’t require the survey if you’re only making some alterations to existing your property.
So long as you’re not proposing an extension of the building’s footprint, adding a new service line, or changing the access, there’s no need for the survey.
Who can carry out a tree survey?
All tree surveys should be carried out by a professional arborist or tree expert, certified by the International Society of Arboriculture (ISA2). This applies to both public, private, and commercial projects.
Choosing the right tree surveyor or arborist
The problem with conducting a tree survey is finding a tree surveyor or arborist you can trust. This is because the tree services market is flooded with cons who want to take your money and deliver poor work.
So to find the right surveyor, you need to do your research. Here are some key things to look for before hiring;
- Licensing, certifications,