The Functional Servicing Report (FSR) is the foundational technical document for Ontario development applications. It demonstrates how a proposed development will be serviced with municipal water, sanitary sewer, and storm sewer infrastructure, and that the proposed services are adequate and appropriate for the scale and nature of the development.
Municipalities in Ontario require an FSR for most planning applications — whether you are seeking an Official Plan Amendment, Zoning By-law Amendment, Site Plan Approval, or draft plan of subdivision. The report addresses existing infrastructure capacity, the proposed servicing strategy, connection points, any required upgrades, and coordination with downstream municipal systems.
For larger or higher-density sites, the FSR also addresses trunk infrastructure capacity and the potential for development to place additional demands on off-site systems. An FSR is prepared and sealed by a licensed Professional Engineer before submission. The level of detail required varies by municipality and application type — a pre-consultation meeting with municipal staff before submitting will confirm exactly what your FSR needs to address for your specific site.