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Functional Servicing Reports

A coordinated servicing strategy prepared for municipal review.

What a Functional Servicing Report covers

A Functional Servicing Report shows how your site will be serviced. It covers municipal water, sanitary sewer, and storm sewer infrastructure.

The report demonstrates that the proposed services suit the scale of the development. Municipalities commonly require one for planning and development applications.

That includes official plan amendments, zoning by-law amendments, site plan control, and draft plan of subdivision. The report addresses existing capacity, the servicing strategy, connection points, and any required upgrades.

Larger and higher-density sites also need trunk infrastructure addressed. Where downstream capacity is the real constraint, a capacity study for trunk infrastructure runs alongside the report.

The report is reviewed and sealed by a licensed Ontario Professional Engineer, as applicable. The level of detail varies by municipality and application type.

Applications often pair the report with a Stormwater Management Report and a servicing plan. Preparing them together keeps the flows, inverts, and connection points consistent across the set.

For background on servicing review requirements, read Water, Sanitary and Storm Services Explained .

When you need a Functional Servicing Report and what it includes

When you need one

  • Official plan amendment
  • Zoning by-law amendment
  • Site plan control
  • Draft plan of subdivision or condominium
  • Building permit on larger sites, depending on the municipality
  • Pre-consultation that identifies engineering triggers

What you receive

  • Existing infrastructure review for water, sanitary, and storm
  • Water demand analysis and watermain sizing
  • Sanitary flow calculations and connection strategy
  • Storm drainage summary and connection approach
  • Capacity assessment against the municipal system
  • Service connection points and offsite requirements
  • A report and letter of transmittal, sealed as applicable

What a reviewer checks first

Reviewing these reports from the municipal side, the first thing checked was downstream infrastructure. Not just the proposed connection, but how the system performs at a network level. Reports arriving without capacity analysis or a complete storm drainage summary went back quickly. The report needs to answer the question before the reviewer asks it.