Thinking about adding a garden suite on your Sherwood Park property to create income or space for family? You are not alone. Many midtown Toronto homeowners want clear numbers on costs, rents, and payback before they build. This guide gives you realistic ROI expectations for Sherwood Park, plus the rules, timelines, and incentives that shape results. Let’s dive in.
A garden suite is a small, self-contained home in a detached building in your backyard. It sits on the same lot as your main house and is separate from any public laneway. Toronto now permits garden suites as an Additional Residential Unit in most residential zones, subject to performance standards. You can review definitions and the city-wide program on the City’s Garden Suites page. Learn more about how Toronto defines and permits garden suites.
Sherwood Park is a central Toronto neighbourhood near Yonge and Eglinton. Its location supports strong rental demand, although trees, lot shape, and access can affect whether a suite is feasible.
Toronto permits one garden suite or one laneway suite per lot, not both. The garden suite’s interior floor area must be smaller than your main house. Typical rules also set minimum setbacks and separation from the primary home. A 4.0 metre separation is a common baseline in many cases, with local exceptions.
You will want to confirm exact standards for your lot. Start with Chapter 150.7 of the City-wide Zoning By-law for performance rules on setbacks, height, and size. Check the Garden Suites performance standards in Chapter 150.7.
You need a building permit. Toronto offers pre-approved garden and laneway suite plans that can reduce design time and reviews. Streamlined projects can move faster, but a realistic concept-to-keys timeline is often 9 to 18 months depending on site complexity. See Toronto’s pre-approved garden suite plan options and permit steps.
Fire access and Ontario Building Code rules apply. Protected trees can limit placement or add costs. The City has posted details on current Building Code transition requirements that may affect design and approvals. Review the 2024 Ontario Building Code transition guidance. If you plan to rent the suite, Ontario’s Residential Tenancies Act governs rent increases and tenant protections. Check the province’s rent increase guidance.
Costs vary with size, finishes, access, and servicing. Current GTA builder estimates suggest:
Budget for soft costs such as survey, design, permits, and utility connections, and include a 10 to 15 percent contingency. Total project budgets often reflect turnkey costs plus these soft items.
For market context, TRREB’s Q2 2025 report shows average one-bedroom rents across the GTA around $2,326 per month, and two-bedrooms around $3,066 per month. Well-finished garden suites in central locations often align with one-bedroom condo averages, depending on size and quality. See the latest TRREB rental market report.
If you plan to use an affordable housing program that requires rent caps, the City’s Average Market Rent for a one-bedroom was about $1,715 in 2025. Program rents are lower than open-market rents, so they change ROI. Review the City of Toronto’s Average Market Rent figures.
Below are simple, illustrative examples. Replace the rent and cost with your quotes to personalize your numbers.
Scenario A: Lower-cost build
Scenario B: Mid-range build
Financing can lower upfront cash but also changes cash flow. The federal Canada Secondary Suite Loan Program offers low-interest loans up to CAD 80,000, which can help with early-stage costs. Always run scenarios with current mortgage quotes and your tax position. Read about the Canada Secondary Suite Loan Program.
Public programs can reduce costs or speed approvals, which supports returns.
A legal garden suite can lift resale value by adding income potential and flexible living space. Market response varies by buyer preferences and program conditions. In practice, price uplift is meaningful but does not usually match 100 percent of build cost. If you use funding that registers on title, disclose those details at sale. See City Council decisions on program-related title considerations.
Ready for a property-specific ROI view? If you want a quick feasibility check, rent estimate, and a clear step-by-step plan tailored to your Sherwood Park lot, reach out to Claire Speedie.
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Claire has a keen interest in investment properties and looks forward to continuing to help her clients build their real estate investment portfolios.