For people new to the world of ecology or housing development the tree survey to BS5837 (British Standard for trees in relation to construction updated in 2012) seems like an alien concept, shrouded with codes and references to things that make little to no sense to the outsider. People doing research into the subject will find that it’s quite hard to get a simple guide to what the survey actually involves, who they’re for and why someone would need one. Hopefully, this short guide should explain what they are in a clear and succinct way, leaving people slightly less confused than they were before.
How can I find a good Tree Surveyor?
Arbtech offer the best prices on planning tree surveys with a heavy emphasis on speed and efficiency. Their best feature is that the surveys are fixed-price, so there won’t be any hidden costs dinting your budget further.
Who are they for?
This survey is for anyone planning or considering altering property/land containing or close to trees. This covers construction, demolition, design and renovation. More common than not, this will concern large development companies, such as a residential developer, however can include individual homeowners. Tree surveys are important for the preservation of local wildlife but they also protect new developments by ensuring that large trees won’t affect them once they’re built. No one wants to be in a situation where a tree’s growth starts to impede the structural integrity of a building, and we’ve seen this month how much damage natural causes can do to house prices in the UK.
The specific area that the survey needs to be done is technically within influencing distance of any tree, which can be up to 15m. The survey itself comes as a three stage process, and may vary very slightly from site to site.
1. Tree Survey Plan
This is simply a drawn plan showing the location of every single tree in the specified area to an exact scale.
Each tree is given a unique reference number, which is the first stage of the 11 point schedule for every tree in the area.
- The scientific and/or common name of each species will be noted.
- If there is a Tree Preservation Order or it has Conservation Area protection, it should be recorded.
- Height of every tree in metres.
- Stem Diameter (cm) measured from 1.5 above ground level.
- The ‘branch spread’ to North, South, East and West.
- Age class. Categorised as young, semi-mature, mature, over-mature, veteran.
- Physiological and structural condition – documenting health and any defects.
- Preliminary management recommendations.
- Remaining ‘useful life’ of the tree.
- A Tree Quality Assessment – this uses all the above data to categorise trees for removal or retention.
3. Tree Constraints Plan This must show the following five things for each tree in the area:
- Accurate position and crown spread.
- Tree Quality Assessment.
- Root Protection Area.
- Future Growth Potential (crown spread and height)
- Shade footprint throughout the day. Based on future growth potential