Tree Trimming: Ayer vs Cambridge
How do tree trimming rules compare between Ayer, MA and Cambridge, MA?
Ayer and Cambridge have similar restriction levels.
Ayer, MA
Middlesex County
The MA Public Shade Tree Law (MGL Chapter 87) requires Tree Warden approval for pruning any public shade tree. All 54 Middlesex municipalities appoint a Tree Warden with legal authority.
View full Ayer rules →Cambridge, MA
Middlesex County
Cambridge has one of the strictest tree ordinances in MA. Under the 2021 Tree Protection Ordinance, major trimming of any tree 6 inches DBH or larger requires a permit from the city arborist.
View full Cambridge rules →Key Facts Comparison
| Fact | Ayer | Cambridge |
|---|---|---|
| Law | MGL Chapter 87 Public Shade Tree Law | - |
| Public Tree Authority | Tree Warden | - |
| Hearing Required | Over 1.5 in diameter | - |
| Private Trees | Owner can trim | - |
| Neighbor Overhang | Trim to property line only | - |
| Protected threshold | - | 6 inches DBH |
| Permit for major trim | - | Required |
| Street tree trimming | - | Prohibited by residents |
| City arborist | - | 617-349-4793 |
| Maximum daily fine | - | 300 dollars per tree |
Highlighted rows indicate differences between cities.
Ayer FAQ
Can I trim a street tree in front of my house?
No. All public shade trees require written Tree Warden approval under MGL Chapter 87, even for light pruning.
Can I cut a neighbor tree branch hanging over my yard?
You may trim back to the property line only. Cutting into the neighbor side is trespass and the neighbor can sue for tree value.
Cambridge FAQ
Can I prune my own 10 inch maple in my yard?
Light pruning is allowed, but significant canopy reduction on a 6 inch DBH tree or larger requires city arborist approval.
A city tree is touching my house. Can I cut the branches?
No. Contact Cambridge DPW Forestry at 617-349-4793 and they will send a crew.
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