Arborist Reports
Arborist reports are helpful and required for a variety of purposes, on this page you can find greater detail on the types of arborist reports drafted by our tree expert, Tim O’Connor, ISA Board Certified Master Arborist and ASCA member.
Tree Protection Plan
Tree protection plans provide clear, site-specific strategy for preserving trees during construction where trees are to be retained onsite. These plans are designed to minimize impacts to tree health and structure while supporting current municipality tree code also determining when trees may need to be, and if they can be, removed.
At ArborLogic, tree protection planning begins with a thorough assessment of existing trees, including tree species and their corresponding stress tolerance profile, size, condition, and location in relation to proposed development. We evaluate critical factors such as root protection zones, soil conditions, grading, utility placement, and construction access to identify potential risks to tree stability and long-term health.
Based on this evaluation, we develop detailed protection recommendations tailored to the site. These may include the establishment of tree protection zones, fencing specifications, ground protection measures, pruning considerations, and guidelines for excavation or work occurring near root systems, which may require preliminary excavation. We also provide recommendations for when an observing arborist may be best practice or required to have onsite during project activity.
Our goal is to create logical, workable plans that balance development needs with responsible tree preservation. By applying arboricultural knowledge and practical construction insight, we help identify protection measures that are appropriate to each site and tree, often reducing unnecessary restrictions and avoidable costs for homeowners or project managers. Avoiding unnecessary complexity and cost, supporting smoother permitting, and more predictable outcomes is what you can expect from ArborLogic.
Tree Protection Plans May Include:
Tree protection zones and fencing requirements
Root protection and soil management strategies
Construction impact mitigation
Pruning and clearance recommendations
Monitoring during construciton
Please Note:
A consultation fee of $100 is required to assess the project. The consultation fee is credited toward any written report cost, if an arborist report is necessary. During or prior to the consultation, you must provide a site survey with trees, structures, and paved surfaces marked, and the development plans. We know this process can feel overwhelming, please contact us with any questions, we are here to help.
Real Estate Tree Inspection
Risk awareness plus peace of mind. Trees are a defining and valuable feature of many Portland area properties. A real estate tree inspection provides an on-site evaluation of existing trees to identify potential risks, health concerns, and future management needs prior to a property purchase or sale.
Many properties include large or protected trees that can carry ongoing maintenance, risk management, or regulatory considerations. ArborLogic conducts thorough assessments to help buyers, sellers, and real estate professionals understand the condition of trees on a property, including structural integrity, visible defects, and any factors that may impact safety, maintenance, or long-term costs. We also identify potential permitting considerations related to Portland’s Tree Code, which may affect future tree work or development plans.
This service provides clear, practical insight to support informed real estate decisions and reduce unexpected issues after closing.
What We Look For:
Tree health and overall condition
Structural integrity and visible defects
Potential risk to structures or people
Maintenance needs and anticipated costs
Tree-related permitting considerations
When to Schedule an Inspection:
Before purchasing a home or property
During property due diligence
Prior to listing a property for sale
When trees may impact insurance or financing
Please Note:
A verbal consultation fee of $100 is required to assess the project. The consultation fee is then credited toward any written report cost. This service is typically completed in a single visit, with the option to proceed to a written report if documentation is needed. Report pricing varies based on property size, number of trees, and site conditions.
Tree Risk Assessment
Our Tree Risk Assessment report provides a comprehensive evaluation of the health and structural integrity of trees on your property. We evaluate the likelihood of tree failure and the potential impact on people, property, and surrounding infrastructure. At ArborLogic, we provide clear, objective assessments that help clients understand risk levels and make informed, responsible decisions.
Using unbiased, industry-standard methodologies, our evaluations consider key factors including tree species, structure, overall health, visible defects, site conditions, and potential targets. We assess conditions such as decay, structural weaknesses, root issues, and environmental stressors that may affect stability over time.
Grounded in best practices and informed by decades of hands-on arboricultural experience. We identify risk levels, explain contributing factors, and provide practical recommendations to reduce risk where appropriate. These may include monitoring, pruning, mitigation strategies, or, in some cases removal.
Written Tree Risk Assessment reports are often used for permitting, property transactions, insurance purposes, or when documentation is needed for decision-making. Our recommendations are unbiased and focused on safety and preservation.
Tree Risk Assessments are Commonly Requested For:
Trees near homes, structures, or high-use areas
Visible damage, decline, or storm impacts
Real estate transactions
Insurance or liability concerns
Development and construction planning
Please Note:
A verbal consultation fee of $100 is required to assess the project. The consultation fee is then credited toward any written report cost. An onsite consultation helps clarify objectives, determine the level of risk assessment recommended, if an official tree risk assessment report is needed, as well as pricing.
Tree Appraisal
Tree appraisal provides a professional assessment of the monetary value of a tree based on its species, size, condition, and contribution to the surrounding landscape. These valuations are typically prepared using established industry methods.
ArborLogic conducts tree appraisals for a range of purposes, including property transactions, damage or loss evaluation, insurance claims, and legal or dispute resolution. Each appraisal is carefully documented and supported by recognized standards, ensuring the results are clear, credible, and defensible.
Our approach reflects both technical expertise and practical field experience, resulting in valuations that accurately represent the role and significance of trees within a given site.
If you are seeking an appraisal for litigation purposes, we strongly suggest consulting with a lawyer experienced in the arboriculture field first. We do not give legal advice.
When Tree Appraisals are Needed:
Property damage or tree loss
Insurance claims
Real estate transactions
Legal dispute or expert support
Establishing baseline tree value for planning purposes
Please Note:
A verbal consultation fee of $100 is required to assess the project. The consultation fee is then credited toward any written report cost. An onsite consultation helps clarify objectives, as well as pricing.
Tree Inventory
Tree inventories provide a comprehensive record of trees on property, supporting planning, management, and development decisions. At ArborLogic, we document key information for each tree to create a clear, organized understanding of existing site conditions.
A tree inventory is helpful to managing any number of trees, but essential for larger numbers. The inventory includes a detailed chart and map of significant trees on your property with species identification, size (diameter and height), condition, location, notable features or defects, and any recommendations to ensure safety and longevity.
An inventory helps to develop a maintenance plan, and with the option to tag included trees, ensures any prescribed tree work is performed on the correct trees, no matter who you contract for the work. It also helps to identify trees recommended for further risk assessment or monitoring.
What’s Included:
Tree Species Identification
Diameter (DBH) measurements
Tree condition and health ratings
Structural observations
Tree location mapping
When a Tree Inventory is Needed:
Development and construction projects
Land use and permitting applications
Site planning and design
Properties with multiple trees or significant canopy
Please Note:
A verbal consultation fee of $100 is required to assess the project. The consultation fee is then credited toward any written report cost. An onsite consultation helps clarify objectives, as well as pricing.
Our Pricing Philosophy
At ArborLogic, our pricing reflects the scope and complexity of each project. We offer straightforward, flat-rate pricing for many residential services, while larger or more complex projects are quoted based on site conditions, number of trees, and reporting requirements.
Our goal is to provide clear, upfront expectations with no unnecessary services. As a consulting-only firm, our recommendations are never influenced by the potential for additional work—only by what is appropriate for the trees and the needs of the site.