Specialized Arboriculture for Professionals & Property Owners
Cohen & Master provides comprehensive consulting services to architects, landscape architects, engineers, developers, municipal agencies, institutions, and homeowners across Toronto and the GTA.
Navigating Tree Bylaws & Protecting Valuable Canopy on Development Sites
The City of Toronto and GTA municipalities maintain rigorous tree protection bylaws (Private Tree By-law, City Street Tree By-law, and Ravine & Natural Feature Protection By-law). Any construction, excavation, renovation, or landscaping occurring within the root zone of a protected tree requires certified arborist documentation.
Our consulting arborists bridge the gap between design vision, engineering requirements, and municipal compliance. We help you obtain approvals efficiently while prioritizing the long-term health and safety of surrounding trees.
Need a Permit or Arborist Report?
Speak directly with our consulting team to get your project moving forward smoothly with municipal approval.
Request Consulting QuoteFast turnaround on official reports.
Consulting Capabilities
Our Professional Consulting Scope
Development & Building Permit Arborist Reports
Comprehensive inventories, tree condition assessments, and municipal bylaw compliance reports required for development applications, additions, swimming pool installations, and building permits across Toronto and the GTA.
Tree Protection Plans (TPP) & Construction Supervision
Detailed preservation blueprints showing Tree Protection Zones (TPZ), hoarding barriers, exploratory root trenching, and certified arborist on-site supervision during excavation near protected trees.
Sonic Tomography & Resistograph Decay Analysis
Non-destructive internal sound velocity testing (PiCUS Sonic Tomograph) and high-precision micro-drill resistance measurements to accurately quantify internal wood decay and assess true structural stability.
Tree Risk Assessment (TRAQ Certified)
Formal Tree Risk Assessments following International Society of Arboriculture (ISA) TRAQ protocols to evaluate target likelihood, structural defects, and mitigation strategies for institutional and private clients.
Tree Appraisals & Valuation for Legal / Insurance
Certified tree valuations applying Council of Tree and Landscape Appraisers (CTLA) Trunk Formula Methods for property damage claims, municipal compensation calculations, and expert witness testimony.
Ravine Stewardship & Urban Forestry Management
Multi-year stewardship plans for properties backing onto Toronto and Region Conservation Authority (TRCA) ravine lands, including invasive species management and native slope stabilization planting.
Ready to Partner with Our Consulting Team?
Whether you are planning a residential renovation, submitting a site plan application, or need non-destructive structural decay testing, we are ready to assist.