Stormwater Management Master Plan

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The Town is developing a Stormwater Management Master Plan (“SWM Master Plan”) to understand the stormwater system needs through to the year 2051, and recommend solutions where needed. It will consider opportunities to improve water quality and reduce urban flooding and recommend improvements to the reliability, efficiency, and capability of the Town’s stormwater system.


Doubling-up Within 30 Years

According to the June 2021 Census, the Town has a population of 51,400. Most residents live within the community of Stouffville. By 2051, the population will be about 103,500 residents and 28,400 jobs (2.4% growth every year). This growth increases the demand on the existing stormwater management systems.

The Town of Stouffville is approximately 220 km square and supports a diverse range of land uses. There are many environmental features through the community, including the Oak Ridges Moraine. Protection of these environmental features is important as the community grows.


This project will:

  1. Help us understand the current performance of the stormwater network in the Town. It will also consider future stormwater needs as the community grows.
  2. Identify and rank different stormwater management solutions over the short-term and long-term. It will recommend solutions to improve existing conditions and to use in new developments.
  3. Help the Town schedule and budget for additional projects between now and 2051. It will provide cost estimates and suggest funding opportunities for these projects.

Get Involved

Stay tuned for upcoming engagement opportunities: public open houses, surveys and more!

The Town is developing a Stormwater Management Master Plan (“SWM Master Plan”) to understand the stormwater system needs through to the year 2051, and recommend solutions where needed. It will consider opportunities to improve water quality and reduce urban flooding and recommend improvements to the reliability, efficiency, and capability of the Town’s stormwater system.


Doubling-up Within 30 Years

According to the June 2021 Census, the Town has a population of 51,400. Most residents live within the community of Stouffville. By 2051, the population will be about 103,500 residents and 28,400 jobs (2.4% growth every year). This growth increases the demand on the existing stormwater management systems.

The Town of Stouffville is approximately 220 km square and supports a diverse range of land uses. There are many environmental features through the community, including the Oak Ridges Moraine. Protection of these environmental features is important as the community grows.


This project will:

  1. Help us understand the current performance of the stormwater network in the Town. It will also consider future stormwater needs as the community grows.
  2. Identify and rank different stormwater management solutions over the short-term and long-term. It will recommend solutions to improve existing conditions and to use in new developments.
  3. Help the Town schedule and budget for additional projects between now and 2051. It will provide cost estimates and suggest funding opportunities for these projects.

Get Involved

Stay tuned for upcoming engagement opportunities: public open houses, surveys and more!

Page last updated: 11 Mar 2026, 12:53 PM