Tree Risk Management in Dunedin

Every tree carries some level of risk — but not every risk requires action. Professional tree risk assessment provides property owners, councils, and body corporates with an objective, evidence-based evaluation of each tree's likelihood of failure and the potential consequences. This allows risk to be managed proportionately, rather than removing trees unnecessarily or ignoring genuinely hazardous ones.

What is a Tree Risk Assessment?

Tree risk assessments evaluate two key factors: the probability of tree failure (or part failure) and the potential consequences if failure occurs. A large tree with significant decay may be low risk if it's in an open paddock with no targets; the same tree over a occupied house is high risk. Our assessors consider:

Tree species and structural characteristics
Signs of decay, disease, root problems, and structural defects
Site exposure and wind loading
Proximity to people, buildings, vehicles, and infrastructure
Frequency of use of the area below the tree
Seasonal and weather-related risk factors

Who Needs a Tree Risk Assessment?

Tree risk assessments are relevant for:

Residential property owners — particularly for large trees near houses, fences, vehicles, or areas where children play
Body corporates and property managers — managing risk across multiple tenancies and common areas
Schools, parks, and recreational areas — high foot traffic under trees creates significant liability
Councils and local authorities — managing street trees and public reserves
Insurance and legal purposes — documentation for claims, disputes, or due diligence

Risk Management Recommendations

A risk assessment doesn't always result in removal. Depending on findings, we may recommend pruning to reduce load, cabling to provide structural support, monitoring on a scheduled basis, restricted access during high-risk periods (such as storms), or removal where the risk cannot be mitigated to an acceptable level. The goal is always to find the most proportionate and cost-effective response.

Dunedin's Tree Risk Context

Dunedin's older residential suburbs contain many large, mature trees — some well over 100 years old — that were planted in an era when tree management was less understood. Many of these trees now have structural defects, advanced decay, or root systems compromised by decades of construction activity nearby. Combined with Dunedin's regular severe weather, the risk profile of large trees in urban areas deserves careful attention.