What started as a basic trim job outside a Panhandle flat has blown up into a very expensive lesson in San Francisco’s tree rules.
Homeowner Paul Dennes says he was stunned when the city slapped him with $50,000 in fines after he cut back five trees outside his unit to satisfy an insurance broker’s clearance request. The Department of Public Works says those trees are city street trees and that the pruning violated municipal standards. Officials have offered to sharply reduce the penalty if Dennes brings in a certified arborist and follows a multi-year restoration plan for the damaged trees.
As reported by ABC7, Dennes says he trimmed branches that were touching his building and some overhead wires after his broker told him the work was needed to secure insurance. Public Works initially recommended a $10,000 fine per tree and charged a total of $50,000. A senior inspector later recommended lowering that to $12,950, and Public Works then said it would cut that reduced fine in half, to $6,475, if Dennes hires a certified arborist and follows a five-year pruning plan. Dennes, whose family has owned the house since 1988, told reporters the penalties felt like “bullying.”
StreetTreeSF and City Policy
The high-dollar fines sit against a policy shift many residents still do not realize happened. In 2017, voters backed the StreetTreeSF program, which moved responsibility for street-tree care from property owners to Public Works and set aside roughly $19 million a year for tree maintenance and related sidewalk repairs, according to StreetTreeSF. Under that system, many trees growing in the sidewalk strip are officially city property, and pruning them outside the city’s schedule or permit process can trigger enforcement. Public Works says the rules are designed to protect long-term tree health and public safety, even when that collides with a homeowner’s desire for quick clearance.
Why Topping Carries Big Penalties
The city’s pruning guidance does not mince words. Topping is not an acceptable pruning practice, the standards state, warning that cutting major limbs back to stubs can shock trees, invite decay and lead to weak regrowth. The 2006 Pruning Standards used by Public Works spell out how much foliage can be removed and reference the Public Works Code (Article 16), which allows the city to bill someone who removes or damages a public tree for the loss of the tree’s value. That framework helps explain why inspectors treated the Panhandle cuts as a code violation instead of a routine clearance job.
Arborists and Neighbors Weigh In
Local tree professionals say the confusion is common: many residents still assume they own and can freely prune the trees in front of their buildings. Certified arborist Christopher Campbell told ABC7 that “$10,000 a tree seems like a lot of money” and that people are still getting used to deferring to professional urban-forestry schedules. At the same time, experts stress that even well-intentioned cuts for clearance or insurance reasons can do more harm than good to a tree’s long-term stability if they are done improperly.
How to Avoid a Costly Citation
Before hiring a crew or breaking out your own pruning tools, city officials and arborists say to take one key step: confirm who owns the tree. If it is a city-owned street tree, work is supposed to go through official channels rather than DIY trimming. San Francisco’s city resources explain how to look up street trees and when to file a maintenance request, and the International Society of Arboriculture’s TreesAreGood site can help homeowners find and verify a certified arborist when private trees need attention. If branches are near power lines, PG&E, not the homeowner, should be contacted to avoid safety and liability risks.
What Happens Next
For now, Public Works has tied a lower penalty to a restoration plan and certified-arborist oversight, giving Dennes a path to reduce his immediate costs if he follows the city’s requirements. The dispute highlights a familiar local tension: homeowners looking for quick fixes to satisfy insurers or address safety concerns on one side, and a municipal system on the other that prioritizes tree canopy health and standardized care, even when that comes with some serious sticker shock.
