The Committee of Adjustment is composed of seven members, who are appointed by the Council of the City of Mississauga. The Committee of Adjustment is authorized by the Ontario Planning Act to grant minor variances from the provisions of the Zoning By-law, to permit extensions, enlargements or variations of existing legal non-conforming uses and give consent to an owner of land who wishes to sell, convey or transfer an interest "part" of their land.

The Committee's consent is also required when the terms of an agreement, such as a lease, easement or mortgage commits the land to a use for a period in excess of 21 years. In addition to Consent, the Committee of Adjustment has also been delegated the power to issue a "Certificate of Validation" and to give "Approval of a Foreclosure of or an Exercise of a Power of Sale in a Mortgage or Charge".