MarkhamBuilding InspectionsInspections

Residential Suites Over Commercial Suites

Published by City of Markham

This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice

Type: Guide
Published by: City of Markham
Date: January 1, 2025
For: builder
Building types: All building types
Pages: 3

Overview

Markham's Builder Tip No. 49, issued by the City's Building Standards Department on January 1, 2025 and updated to the 2024 OBC, about water supply shut-off valves where dwelling units sit above stores or business suites. It sets out the Building Code definitions of suite, dwelling unit, live/work unit, residential occupancy and secondary suite, quotes Sentences 7.6.1.3.(5) and (6) on control and shut-off valves, and explains how mixed-use buildings and live/work units are treated. The City files it with its housing tips under the 2024 Ontario Building Code.

What it covers

Division A – Part 1 – Section 1.4. Terms and Abbreviations
Article 1.4.1.2. Defined Terms
7.6.1.3. Control and Shut-Off Valves
Objective

Check this against the municipality before you rely on it.

DocHub collects what a municipality published; it cannot tell you what is in force today. A newer version may exist, may be titled differently, or may not be posted publicly at all.