Questions to ask before planning a secondary suite

Illustrative reference: Secondary suites & garden suite construction in the GTA

Planning a basement or garden suite? Clarify the intended use, property information, feasibility questions, and design priorities before setting a scope.

Who will use the space?

Start with the purpose of the suite. Think about privacy, independence, storage, and the relationship to the main home. A space intended for family use may have different priorities from a future rental. Put those priorities into the brief before discussing finishes.

Which type of suite are you exploring?

Adapting an existing basement and planning a detached suite raise different questions. The available space, site arrangement, access, and existing systems all matter. Avoid assuming that a concept seen on another property can be transferred directly to yours.

What needs a property-specific review?

Bring the address and available drawings to the first discussion. The next steps may include professional assessment and confirmation of applicable municipal requirements. This article does not establish whether a suite is permitted on a particular lot; that needs its own review.

How will the spaces work together?

Consider entrances, circulation, outdoor areas, storage, and the practical relationship between occupants. These are design questions to work through as a whole. An attractive interior image does not explain how the additional dwelling will function on the property.

What should the proposal explain?

Look for the agreed work, assumptions, exclusions, and responsibilities, including which investigations and professional services are covered. Discuss how changes will be reviewed. Do not base the decision on rental-income expectations or approval timing that have not been independently assessed.

What can you prepare now?

Create a brief describing the intended use, preferred type of suite, available information, and open questions. That helps the first conversation focus on feasibility and planning rather than premature promises about the finished result.

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