Our Team

Qualifications 

• Bachelor of Applied Science (Horticulture, University of Melbourne - Burnley)
• Associate Diploma of Applied Science (Arboriculture, University of Melbourne - Burnley)
• Certificate of Arboriculture (Ryde College, Sydney) 
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

As founder and Managing Director of Tree Dimensions, David is a highly regarded and experienced arboricultural consultant.  As a valued consultant to several councils, David regularly assesses trees in relation to planning issues. David is also experienced in liaising and communicating with community groups on behalf of councils.  David is regularly engaged by councils and others as an expert witness.

David served as a board member of the International Society of Arboriculture – Australia Chapter (ISAAC). He was ISAAC’s representative on Standards Australia’s EV-018: Arboriculture committee, which develops standards for tree pruning and protecting trees on development sites. 

Current specialist roles

• Acting Commissioner of the NSW Land and Environment Court. 
• Casual lecturer, University of Melbourne (Burnley Campus) at Graduate Certificate and Bachelor level. Subjects include Trees and the Law, Tree Protection, Tree Assessment, Tree Valuation and Tree Pruning.  
• Member of the National Trust (Victoria) Significant Trees Expert Committee. David has detailed knowledge of the National Trust (Victoria) guidelines for determining the significance of heritage trees. 

 Qualifications

• Bachelor of Horticulture (Arboriculture, University of Melbourne - Burnley)
• Associate Degree of Environmental Horticulture (Arboriculture, University of Melbourne - Burnley)
• Certificate IV in Horticulture (Parks & Gardens, University of Melbourne)
• Apprenticeship in Horticulture, South Gippsland Shire Council 
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

Matt is an outstanding communicator and brings a wide range of knowledge in horticulture and arboriculture to the experienced team at Tree Dimensions. His career in horticulture began as an apprentice gardener in South Gippsland. Later he worked in Melbourne’s inner-city gardens where he became Head Gardener of the Kings Domain and the Shrine of Remembrance parklands. 

Prior to commencing work with Tree Dimensions in 2012, Matt worked as a climbing arborist for four years. In this role, Matt gained skills in professional tree maintenance, tree removal and the treatment of tree-related pests and diseases. 

Matt has worked as a research assistant at the University of Melbourne. In Melbourne and China, he has taught: climbing techniques, tree pruning, and tree planting. Matt also tutors in tree identification at the university’s Burnley Campus. 

Matt has been carrying out planning assessments, tree removal requests and tree valuations for councils since the start of 2012. He can undertake climbing (aerial) inspections of trees where necessary; and completed the Australian i-Tree Master Class 2017.

He volunteers for the Friends of Burnley Gardens and is currently the committee Vice President.  

 Qualifications

• Graduate Certificate in Arboriculture (University of Melbourne - Burnley)
• Graduate Certificate in Bushfire Planning & Management (University of Melbourne)
• Diploma of Project Management (Swinburne)
• Certificate III in Arboriculture (Melbourne Polytechnic)
• Bachelor of Design (Landscape Architecture (RMIT)
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

Rowan has extensive practical and consulting experience. He works closely with local government planners, reviewing planning applications involving trees. His climbing and practical experience enables Rowan to carry out advanced risk assessments, including aerial inspections, sonic tomography and resistance drilling tests, and root crown investigations. Rowan has mastered the GIS software we use for collecting, analysing and reporting tree data and development impacts. 

 Qualifications

• Graduate Certificate in Arboriculture (University of Melbourne - Burnley)
• Diploma of Applied Science (Horticulture, University of Melbourne - Burnley)
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

Libby has been a consulting arborist at Tree Dimensions since 2023. She undertakes tree assessments on several of our local government contracts. She has extensive and varied experience across the landscape design, horticulture and event management industries. Libby applies her experience and enthusiasm to urban forest management for local government and enjoys undertaking Project Arborist roles for commercial developments.

 Qualifications

•  Master of Arts (Work Based Learning Studies – Urban Woodland Management, Middlesex)
•  Higher National Diploma in Arboriculture (Myerscough)
•  National Certificate in Horticulture (Brackenhurst)

Skills & Experience

Phillip joined Tree Dimensions in 2023. Phillip brings extensive arboricultural experience at local government and in the private sector, both in Australia and abroad, which incliudes 20 years of local government experience in arboriculture in the UK, New Zealand and Australia. Before joining Tree Dimensions in 2023, he spent seven years as an Urban Forester at the City of Melbourne in the Urban Forest and Ecology team with responsibility for the Development Portfolio. This role required assessments of planning applications, construction management plans, tree impact assessments and protection plans, as well as tree valuation. 

While at the City of Melbourne, Phillip was a committee member of the Council Arborists of Victoria and worked with Arboriculture Victoria on the Minimum Industry Standard (MIS) for tree valuation, as well as presenting at the National Conference.

 Qualifications

•  Bachelor of Bioscience (Ecology, La Trobe University)
• Diploma of Arboriculture (Arbortrim Australia)
• Certificate III in Arboriculture (Melbourne Polytechnic)
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

 Jordan joined Tree Dimensions as a consulting arborist in 2023. He carries out tree assessments and, with qualifications and experience in ecology, can also carry out fauna inspections and assessments. Jordan undertakes tree data collection, tree risk assessments using ISA TRAQ, tree damage insurance claims and electrical line clearance compliance audits.  He has an extensive knowledge of local government tree management systems and provides excellent customer service 

 Qualifications

•  Masters of Urban Horticulture (University of Melbourne - Burnley)
• Graduate Diploma in Urban Horticulture (University of Melbourne - Burnley)
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

Manori joined the team at Tree Dimensions in early 2024 as a consulting arborist. She has high-level GIS skills, carries out tree data collection and tree assessments, and undertakes reviews of local government planning applications. Manori has worked as an arborist in Melbourne since 2018 and has worked at Moonee Valley City, reviewing significant tree applications and local law tree-related requests. 

 Qualifications

•  PhD - Science (SAFES, University of Melbourne - Burnley)
• Masters of Science (NREM, Oklahoma State University)
• Bachelor of Forestry Engineering (University of São Paulo)
• Tree Risk Assessment Qualification (TRAQ, International Society of Arboriculture)

Skills & Experience

Patricia joined Tree Dimensions in early 2025 as a consulting arborist. She has experience with data collection, analysis, visualization and conceptualization of various research projects related to Ecosystem Sciences, including:

• Consolidation of pre-colonial vegetation information from historical survey plans of Victoria state, focusing on the City of Melbourne council area
• Investigation on tree growth impacts by urban density and impervious surfaces at the Merri-bek City Council 
• Canopy cover projection models to monitor progress towards urban forest canopy cover targets at the City of Melbourne