Planning and Development

A cut out picture of the Zoning By-law.


Planning Department

395 Mulock Dr, Newmarket, ON
L3Y 4X7
(905) 953-5321

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​​​​​​​​​​​​​​​​​​​​​​​​The ​​Planning Department, under the Development and Infrastructure Services Commission has a mandate to assist and advise the public, land stakeholders, government agencies and Town Council on matters relating to land use planning.​​​ On the Planning se​ction of the website, you will find documents and information related to land use and zoning.

January 2019: Council has adopted an Interim Control By-law that limits the ability to expand, rebuild, or add to many residential properties while a study on changes to the zoning by-law is undertaken. For more details, see this page.


​Building​ a​n​d ​Development​

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The department processes all forms of development applications under the Planning Act, including Official Plan and Zoning By-law amendments, Subdivisions and CondominiumsSite Plan ApprovalsMinor Variances and Consents.

If you have received a Public Notice for a development application in the mail you can contact the Planning Department to have your say. Additional information about the application is available on the Current Applications page.