Garden Suite Rental Income & ROI in Toronto & the GTA

One-bedroom garden suites in the GTA typically rent for $1,900 to $2,600 per month in 2026, depending on location and finish level. Central Toronto and transit-connected neighbourhoods sit at the top of the range; outer-GTA locations and simpler finishes sit lower. Two-bedroom and two-storey suites command more. Detached suites consistently out-rent basement apartments of similar size because tenants pay for the private entrance, full-height windows, and absence of shared walls. Rents move with the market, so treat these as planning figures, not promises.

On rent alone, simple payback generally runs 12 to 18 years: an all-in build cost of $285,000 to $450,000 against gross rent of roughly $23,000 to $31,000 per year, less operating costs. That is before counting rent growth over time, the suite's contribution to resale value, or the avoided housing costs when family lives in it. A prefab suite starting around $225,000 shortens the payback meaningfully. We never guarantee returns — the point of this guide is to show you the honest math so you can run it with your own numbers.

A legal, permitted garden suite adds a second self-contained dwelling and an income stream to the property, and appraisers and buyers increasingly price that in — particularly investors and multigenerational buyers, who form a growing share of the GTA market. The exact uplift varies by neighbourhood and market conditions, and a suite rarely appraises for its full construction cost the day it is finished; the value case builds over time through rent plus appreciation. Full permits and occupancy sign-off are essential: unpermitted structures can subtract value rather than add it.

Plan for insurance (an update to your home policy covering the second dwelling), utilities depending on how you meter and structure the lease, maintenance and repairs (modest on a new build, but never zero), a vacancy allowance — one month every year or two is a prudent assumption — and slightly higher property tax reflecting the added dwelling. Many owners budget roughly 15 to 25 percent of gross rent for all-in operating costs. A new, warrantied suite runs cheaper in its first decade than an aging basement unit, which is part of the detached suite's quiet advantage.

They solve the problem differently. A rental condo requires buying land and unit at market price, plus condo fees, and its rent must cover all of it. A garden suite builds a new dwelling on land you already own — no land purchase, no condo fees, and development charges waived in most municipalities. The trade-offs: your capital is locked into your own property, and the suite cannot be sold separately. For owners planning to hold, the suite's combination of strong rents and low carrying costs is hard for a condo to match. We are builders, not investment advisors — run both scenarios with your own advisor.

That is the standard model. At $1,900 to $2,600 per month, a suite's rent services a substantial share of the payments on the financing that built it — especially when the stack starts with an insured mortgage refinance covering up to 90% of the property's as-improved value at mortgage-linked rates, with a HELOC for the balance. Many lenders will also count a portion of expected rent from a legal suite when qualifying you. See our financing guide for a worked funding stack, and confirm current program terms with your lender.