Frequently Asked Questions
What trees are protected from construction damage under Boulder’s Tree Protection Ordinances?
As they are currently written and interpreted Boulder’s Tree Protection Ordinances protecting trees from construction damage, apply only to:
- trees within the confines of a property under construction
- trees on public property
There is no protection for trees on the property adjacent to a construction site. Because of the damage to the State Champion Horsechestnut, caused by construction on the adjacent site, these ordinances are now under review.
If my property is adjacent to a construction site, what can I do to protect my trees?
Call the City of Boulder Office of Planning and Development services 303-441-1889 and ask to speak with a Project Specialist. Describe the location of the trees that concern you. Be sure to follow up until you get an answer that satisfies you. If in fact those trees need to be protected from construction damage, ask the city to get you a detailed plan, in writing, describing the steps that will be taken to protect your trees.. You can also reach the Office of Planning and Development at
What if my trees have been damaged by construction on an adjacent site?
If your trees have already been damaged by construction on an adjacent site call Robert Ray, City of Boulder Land Use Manager, Office of Planning and development Services. 303-441-4277 email:
Should I have my trees appraised?
If you are concerned about damage from construction, get your trees appraised. If your trees have already been damaged, get them appraised as soon as possible.
Where do I find a qualified tree appraiser?
There are many highly qualified consulting arborists who do tree appraisals in the Denver/Boulder area. Go to American Society of Consulting Arborists to get a listing of names.
What can I do to protect my own trees from construction taking place on my property?
Bring a consulting arborist in to review Boulder’s guidelines for tree protection on construction site to be sure those guidelines are adequate for your trees. If not, establish your own guidelines for tree protection. Be sure that your contractor is aware of what must be done to protect each tree and be sure that your contractor’s has explained that to each sub. It takes decades for a tree to mature. It only takes minutes for a bobcat to destroy it.