AuroraBuilding PermitsSecond Suites

Secondary Suite Handout

Published by Town of Aurora

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This is the Town of Aurora’s document, as published on its website on 22 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice

Type: Document
Published by: Town of Aurora
Date: REVISION 03 - SEP 2025
For: homeowner
Building types: Houses
Pages: 2
Instruments: OBC 2024 · SB-12

Overview

The Town of Aurora's Secondary Suite Handout, two sheets labelled Basement Suite B02a and B02b under OBC 2024, revision 03 of September 2025. Sheet B02a, for an existing building, tabulates minimum room areas, window areas for light, egress, fire separation between units, smoke alarms and carbon monoxide detectors, plumbing, heating and ventilation. Sheet B02b is a sample plan with numbered notes on basement secondary suites. It supports the Town's secondary dwelling unit pages.

What it covers

MINIMUM ROOM AREAS
MINIMUM WINDOW AREAS FOR LIGHT
EGRESS REQUIREMENTS
SEPARATION BETWEEN UNITS
SMOKE ALARMS AND CARBON MONOXIDE DETECTORS
PLUMBING, HEATING AND VENTILATION
REQUIRED PLUMBING FACILITIES
SAMPLE PLAN & SPECIFICATIONS
NOTES RELATED TO BASEMENT SECONDARY SUITES

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