Zoning · Caledon · Agricultural
A3-ORM zone, Caledon: Small Agricultural Holdings – Oak Ridges Moraine
Section 10 – Agricultural and Rural Zones, Tables 10.1 and 10.2 of the Town of Caledon Zoning By-law 2006-50.
A rural zone on the Oak Ridges Moraine for small farm holdings of at least 4 hectares, where farming, a detached house on a vacant lot of record that qualified for one as of November 15, 2001, and farm-related uses are allowed with large setbacks and limited building coverage.
Is a property in the A3-ORM zone? Enter its address and the lookup returns the zone and these standards, including any site-specific exception.
Check an addressWhat the A3-ORM zone permits
- Agricultural Uses (subject to Section 4.41 Prohibited Uses in Wellhead Protection Area within the ORM Conservation Plan Area)
- Bed and Breakfast Establishment (subject to Section 4.5 and Section 5.2.2)
- Cannabis-Related Use-Outdoor (subject to Section 4.7)
- Dwelling, Detached (only on a vacant lot of record where a single detached dwelling would have been permitted as of November 15, 2001, and accessory uses thereto)
- Environmental Management
- Farm-based Alcohol Production Facility (subject to Section 4.26)
- Farm Equipment Storage Building
- Farm Produce Outlet, Accessory
- Farm Vacation Home (ORM)
- Forest Management
- Home Business (ORM)
- Home Industry (ORM)
- Industrial Hemp-Related Use-Outdoor (subject to Section 4.7)
- Nursery, Horticultural
- On Farm Diversified Use (subject to Section 4.26)
- Open Storage, Accessory
- Produce Storage Building
- Transportation, Infrastructure & Utilities
Standards
| Requirement | By-law |
|---|---|
| Minimum lot area (interior lot) | 40000 m² |
| Minimum lot width (interior lot) | 55 m |
| Minimum front yard | 18 m |
| Minimum interior side yard | 10 m |
| Minimum exterior side yard | 18 m |
| Minimum rear yard | 15 mMain building 15 m; accessory building 10 m |
| Maximum building height | 10.5 mResidential uses 10.5 m; non-residential uses 12.2 m |
| Maximum lot coverage | 5 %Maximum building area 5%; does not apply to Public Uses owned and operated by the Town of Caledon (footnote 1) or to a Livestock Facility (footnote 2) |
| Minimum landscaped open space | 50 % |
Other provisions in this section
- Minimum lot area is 4 ha (40,000 m²) as stated in Table 10.2.
- Minimum driveway setback 3 m; must comply with Section 5.2.14, Driveway Provisions for Residential Dwellings (Table 10.2 footnote 3).
- Minimum parking space setback from any street line: 3 m.
- Maximum building area (5%) does not apply to Public Uses owned and operated by the Town of Caledon or to a Livestock Facility.
- Accessory buildings require a minimum rear yard of 10 m (main building 15 m).
- Detached dwelling permitted only on a vacant lot of record where a single detached dwelling would have been permitted as of November 15, 2001, and accessory uses thereto (Table 10.1 footnote 4).
- Agricultural uses must comply with Section 4.41 Prohibited Uses in Wellhead Protection Area within the Oak Ridges Moraine Conservation Plan Area (footnote 7).
- Bed and Breakfast Establishments must comply with Section 4.5 Bed and Breakfast Establishments and Country Inns and Section 5.2.2 Residential Parking Requirements (footnote 3).
- Farm-based Alcohol Production Facility and On Farm Diversified Use must comply with General Provisions Section 4.26 (footnote 6).
- Cannabis-Related Use-Outdoor and Industrial Hemp-Related Use-Outdoor must comply with Section 4.7 Cannabis or Industrial Hemp Uses (footnote 8).
- Section 10.4.1: where a lot fails to meet the minimum lot area and/or lot frontage, residential uses are subject to the RR column of Table 6.1, Section 6, and Sections 4.2.2, 4.41 and 5.2.19; non-residential uses (and lots with both a residential and a non-residential use) remain subject to all Section 10 standards including minimum lot area and frontage.
- All uses are also subject to the General Provisions in Section 4 and the Parking, Loading & Delivery Standards in Section 5 (Section 10.1).
Source: Section 10 – Agricultural and Rural Zones, Tables 10.1 and 10.2, By-law 2006-50 (Town of Caledon), checked 2026-09-12. General provisions elsewhere in the by-law (parking, driveways, accessory buildings) also apply, and a numbered exception on the parcel can change any value here. Treat this as a pre-check, not a sign-off.
Other agricultural zones in Caledon: A1, A1-ORM, A2, A2-ORM, A3