Advanced, or Level 3, Tree Risk Assessments provide detailed information about specific tree parts, defects, targets, or site conditions. Tree assessments performed at this level are usually time-intensive and more expensive to conduct, as they require specialised tools and/or skills. Advanced assessments are usually reserved for high-value trees or trees of historical importance. Level 3 assessments can include, but are not limited to:

• aerial crown inspections

• internal decay inspections

• subsurface root inspections