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Homeowner guide

Adding a Second Suite in Aurora: A Homeowner's Guide

A second suite gives a parent, an adult child or a tenant their own space. In Aurora, it has to meet zoning, the Ontario Building Code and the Town's registration by-law. Here's how those fit together.

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Which homes qualify

Aurora's zoning permits second suites in detached, semi-detached and link houses, subject to conditions. Confirm your property's zoning before you pay for drawings.

Registration under By-law 6660-24

The Town's Additional Residential Units By-law 6660-24 requires these units to be registered. Plan for registration from day one: keep permits, inspection records and drawings together.

Permits

The Town of Aurora says finishing a basement without structural changes or new bedrooms generally doesn't need a building permit, but a second suite is different. It needs a permit and must meet Ontario Building Code requirements for a second unit, such as fire separation, smoke and carbon monoxide alarms and safe exits. Some plumbing work also needs a plumbing permit.

Heritage areas

Northeast Old Aurora has been a provincial Heritage Conservation District since 2006. If your home is there, exterior changes such as a new side entrance may need extra review, so ask early.

A short checklist

  • Confirm zoning and house type
  • Decide who the suite is for; it affects layout and entrance
  • Plan fire separation, exits and alarms
  • Allow time for permit review and inspections
  • Register the unit after the final inspection

How BDF helps

BDF Renovation & Construction Inc. is based in Newmarket. Our team brings 15 years of renovation experience in Ontario. We carry liability insurance and WSIB coverage, handle permits when they're needed, and complete plumbing and electrical work through licensed partner contractors. Work we perform comes with a 1-year warranty. Call (289) 500-0230, Monday to Saturday, 7 AM to 6 PM.

Next steps: legal second suites in Aurora · basement finishing in Aurora · Aurora area guide · Ontario basement apartment rules.

Frequently asked questions

Can I add a second suite to my Aurora home?

Aurora's zoning permits second suites in detached, semi-detached and link houses, subject to conditions.

Do second suites in Aurora have to be registered?

Yes. Additional Residential Units By-law 6660-24 requires registration.

Is a permit needed for a second suite in Aurora?

Yes. A second suite needs a building permit and must meet the Ontario Building Code requirements for a second unit.

Sources

General information, checked October 2026. Rules change; confirm with your municipality.

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