Planning & Permits

Conservation Halton (CH) strives to:

  • protect life and property from natural hazards such as flooding and erosion,
  • prevent environmental degradation and loss of significant natural features and their ecological and hydrological functions, and
  • prevent pollution of natural features and watercourses.

CH does this in two ways. First, CH provides planning services to provincial agencies (click here to see Niagara Escarpment map), municipalities, and landowners throughout its watersheds (click here to see Conservation Halton Watershed map). Second, under Ontario Regulation 162/06, CH regulates:

  • all development in or adjacent to river or stream valleys, wetlands, shorelines or hazardous lands;
  • alterations to a river, creek, stream or watercourse; and
  • interference with wetlands.

Permission is required from CH for undertaking any works in or adjacent to watercourses, river or stream valleys, lands adjacent or close to the shoreline for Lake Ontario, other natural hazards such as karst, and wetlands and surrounding lands where development could interfere with the hydrologic function of a wetland.

Contact Information

If you want to do any construction or development on or adjacent to a regulated area, interfere with a wetland, or alter a creek, stream or watercourse), you will need a permit.

This is in addition to a building permit or other approvals from your municipality. Go to our Permits page for more information on how to apply for a permit.

It is always best to contact Conservation Halton first to confirm if you do require a permit. You can send an e-mail to or call 905-336-1158

  • Milton: Ben Davis, ext. 2278
  • Oakville, Hamilton, Halton Hills, Mississauga & Puslinch: Andrew Fera, ext. 2333
  • Burlington: Cassandra Connolly, ext. 2301
  • General Inquiries: Michelle Caissie, ext. 2227

Disclaimer: The text of the Regulation takes precedence over the Approximate Regulation Limit. Some regulated features may not appear on the Approximate Regulation Limit mapping. This mapping should be used for information purposes only. The data displayed are derived from sources with different accuracies and all boundaries should therefore be considered approximate. Data on this map is used under license and is protected by copyright for different organizations, including but not limited to Teranet Enterprises Inc. and other agencies.