The Greenbelt is a approximately 204 square kilometres of land in Ottawa in which real estate development is strictly controlled. It begins at Shirleys Bay in the west and extends to Green's Creek in the east. More than half of the land is protected by the National Capital Commission (NCC). The Greenbelt forms an arc (or crescent) through the inside of the city. If you live inside the Greenbelt, you live inside of the arc. If you live outside of the Greenbelt, you live in the larger area surrounding the arc.

School Boundary Maps have been provided on this website to the public for for illustrative purposes only. While the Planning and Facilities Department makes every reasonable effort to keep information on the maps accurate, the Board cannot guarantee their accuracy or precision. Furthermore, the maps are only updated annually and may not reflect the construction of new street networks. These maps should not be used in isolation to determine school attendance or transportation eligibility. Under no circumstances shall the Ottawa Catholic School Board be held liable for any actions taken, decisions made, or actions not taken from reliance on any information presented in the maps or consequences from any such reliance.