Caledon allows a maximum of three Additional Residential Units (ARUs) on a property for residential purposes, with specific limits on detached ARUs.

Review Section 6: Residential Zones of Caledon’s zoning by-laws for more details.

Building an ARU in Caledon

• You must obtain a building permit to build an ARU. Visit the Building Services page for information.
• Visit this link to begin your project preparation.

Pre-Approved Detached ARU Drawings

• Caledon offers pre-approved building plans for one-bedroom and studio ARUs, making it easier for homeowners to build a detached ARU on their property.
• Access the pre-approved drawings here.

The Gentle Density Community Improvement Plan (CIP)

• Caledon established the CIP with funding from the Federal Government’s Housing Accelerator Fund (HAF). The CIP offers financial assistance to accelerate residential development through gentle density such as basement apartments, in-law suites, and multiplexes.
• Learn more about the grants and incentives made available through the CIP at this link.

Visit Caledon’s Housing page for more information on housing and building an ARU.