How does Markham's comprehensive zoning by-law affect homeowners?Markham Council enacted Comprehensive Zoning By-law 2024-19 on January 31, 2024. It replaces 46 older by-laws dating from 1954 to 2004 and was approved city-wide by the Ontario Land Tribunal in September 2024, except for some lands under site-specific appeals. It sets what you can build as of right on your lot, including size, height and setbacks. Check your zone on the City’s map before planning an addition, suite or rebuild.
For decades, Markham properties were governed by dozens of separate zoning by-laws, depending on when an area was built. The comprehensive by-law brings most of the city under one set of rules.
Michael John Lau, a REALTOR® with the Kaizen Real Estate Team, one of the most active real estate teams in Markham and York Region, encourages buyers planning changes to check the zoning before they offer.
Key facts
| Item | Detail |
|---|---|
| By-law | 2024-19 |
| Enacted | January 31, 2024 |
| Replaced | 46 parent zoning by-laws (1954 to 2004) |
| Tribunal approval | September 19, 2024, city-wide except site-specific appeals |
How to check your property
- Use the City’s interactive zoning map; greyed-out areas are not covered.
- Read the zone standards in the office consolidation.
- Request a zoning search or property compliance report for certainty.
- Remember that heritage districts and some provincial lands have extra rules.
Additions and rebuilds
The by-law sets the largest home allowed as of right on a lot, including height, coverage and setbacks. The City has published 3D comparisons with the older infill by-law. If your plans exceed the standards, you can apply for a minor variance through the Committee of Adjustment.
Planning to add on or rebuild?
Michael John Lau can help you check zoning questions before you make an offer.
Book a buyer consultationSearch Markham homesPrefer to talk? Call the Kaizen Real Estate Team at (647) 370-8885.
Suites and additional units
Ontario allows up to three residential units on many residential lots, and the by-law includes rules for additional residential units. Every unit still needs building permits and must meet the Building and Fire Codes. Short-term rentals and rooming houses are treated separately.
Before you buy to build
Check zoning, trees, heritage status and any conservation authority limits together. Ultimately, the decision is yours. The goal is to make sure you have all the information before you buy.
Good plans start with knowing what the zoning allows. Call the Kaizen Real Estate Team at (647) 370-8885 or book a consultation.
Frequently asked questions
What is Markham's comprehensive zoning by-law?
By-law 2024-19, enacted January 31, 2024, which replaced 46 older zoning by-laws.
Is the new zoning by-law in force?
Yes, city-wide except for lands under site-specific appeals.
How do I find my property's zone?
Use the City's interactive zoning map or request a zoning search.
What if my addition doesn't meet the zoning?
You can apply for a minor variance through the Committee of Adjustment.
How many units can I have on my lot?
Ontario allows up to three on many residential lots, subject to rules and permits.
Do heritage districts have extra rules?
Yes. Heritage conservation districts may have additional standards.
Michael John Lau and Neeraj Moolchandani are licensed REALTORS® with the Kaizen Real Estate Team, eXp Realty, Brokerage, 9763 Markham Rd, Markham, ON L6E 1A4. Licence #4784577. Call (647) 370-8885. By-law dates, appeal status and coverage are from the City of Markham comprehensive zoning by-law project page. Confirm your property's standards with the City of Markham. This article is general information only and is not financial, legal or tax advice. Not intended to solicit buyers or sellers currently under contract with another brokerage.
