Ontario Regulation 225/26 amends Regulation 828 of the Revised Regulations of Ontario, 1990 under the Niagara Escarpment Planning and Development Act, introducing a broad modernization of the rules governing development activities within the Niagara Escarpment Development Control Area. The regulation replaces and expands the list of activities that are exempt from requiring a development permit, while also updating key definitions used in the regulatory framework. The changes aim to clarify requirements, improve routine activities, and establish more predictable rules for property owners, municipalities, agricultural operators, conservation groups, and public authorities operating within the environmentally significant Niagara Escarpment region.

A major component of Ontario Regulation 225/26 is the replacement of section 5 of Regulation 828, which sets out the classes of development that do not require a development permit when they are permitted under the Niagara Escarpment Plan and are not inconsistent with an existing permit. The revised exemption list is extensive and covers a wide range of activities involving forestry, agriculture, residential properties, infrastructure, conservation, and public services.

The new rules provide expanded exemptions for tree-related activities, including tree removal, pruning, relocation, and transplantation in circumstances such as safety hazards, disease, invasive species control, utility maintenance, public road maintenance, and personal use by property owners. Forestry operations conducted under approved plans, prescriptions, or applicable legislation are also exempt where they follow practices designed to protect natural habitats, groundwater, biodiversity, and forest productivity.

The regulation introduces additional flexibility for routine property maintenance and improvements. Activities such as repairing buildings, reconstructing structures damaged by events beyond an owner’s control, interior renovations that do not change use, accessibility improvements, fire safety upgrades, and minor structures of four square metres or less can proceed without a development permit. Residential exemptions now specifically address additions to single dwellings, roof height changes, decks, pools, outdoor sports courts, accessory buildings, wells, cisterns, and home occupations, subject to size, setback, and environmental protection requirements.

Agricultural activities receive significant clarification through exemptions for cultivation, irrigation systems, farm drainage, manure application, agricultural accessory buildings, farm ponds, farm product sales structures, and certain livestock facility conversions. These activities remain subject to environmental safeguards, including minimum distance separation requirements, wetland protections, and restrictions on impacts to watercourses and groundwater.

Ontario (225/2026) July 22, 2026
Disclaimer: Insights are for informational purposes only and does not reflect RRI’s official position or constitute legal opinion.