Arborist Documentation and Professional Opinion

Arborist documentation and professional opinion provide written, defensible records of tree-related observations, evaluations, and conclusions. These documents are used to support land development, redevelopment, planning decisions, and project review where clear professional judgment is required.

All documentation is prepared by an ISA Certified Arborist and reflects professional opinion based on observable conditions, project information, and accepted arboricultural principles at the time of evaluation.

Purpose of Arborist Documentation

Professional arborist documentation is commonly used to:

  • Support land development and redevelopment projects

  • Respond to municipal or agency inquiries

  • Document existing tree conditions and observations

  • Provide written professional opinions for planning or review

  • Establish a clear record for project files and coordination

These documents are often relied upon by property owners, developers, engineers, planners, and reviewers as part of a broader decision-making process.

Types of Documentation

Arborist documentation may include, but is not limited to:

  • Written professional opinions

  • Tree-related reports and summaries

  • Supporting documentation for permitting or review

  • Clarifying statements addressing tree condition, risk, or site factors

  • Project-specific arborist letters

The scope and format are tailored to the needs of the project rather than produced as a generic template.

Professional Opinion and Scope

Professional opinions represent the arborist’s judgment based on visible conditions and available information at the time of evaluation. Trees are living organisms, and their condition and performance may change due to weather events, site disturbance, construction activity, or maintenance practices.

Documentation does not guarantee future performance or outcomes. It is intended to provide clarity, context, and professional perspective to support informed decisions.

Use in Land Development

In a development context, arborist documentation and professional opinion may be used to:

  • Clarify tree-related issues identified during planning or review

  • Support or supplement surveys, risk assessments, and protection plans

  • Provide written context for site constraints or design considerations

  • Establish a professional record aligned with project timelines

These documents often function alongside other arborist services rather than as standalone deliverables.

Deliverables

Deliverables are prepared in a professional written format appropriate for submission, review, or recordkeeping. Content, length, and level of detail are aligned with project requirements and intended use.

When a project requires clear, professional arborist input in written form, arborist documentation and professional opinion provide the necessary clarity and structure.