Times shown are local to the property.
21 Mariam Street, St. Thomas, Ontario, N5P1W9




Estimate the monthly cashflow if you bought this home as a rental. Every figure below is an editable estimate. This is education only, not financial advice.
Enter the monthly rent you expect, or adjust our estimate.
Enter an estimated monthly rent to see the cashflow.
Estimates only, not a mortgage approval or financial advice. Rate, taxes, and allowances are assumptions you can edit above.
$420,999
St. Thomas
This 3-bedroom, 1-bathroom home in St. Thomas is for sale offering roughly 900 sq ft of space. Listed at $420,999, it is attractively priced about 24% below the $552,081 median asking price in St. Thomas.
Welcome Home! This inviting and well cared for 3 bedroom with 1 oversized bathroom home is ready for its next owner. The kitchen was updated in 2021and 2022 upgrades includes new windows, siding, and a metal roof. Complete with a detached garage and brand-new driveway completed in 2025. Add everyday convenience, and there's plenty of storage throughout the house to keep life organized. A comfortable, move in-ready home with the important updates already done. (id:66096)
Room details as supplied by the listing brokerage. Dimensions are shown in the unit the listing states, and are approximate.
Features and services as supplied by the listing brokerage.
Long Listed: 142 days on market, against an average age of 72 days across the listings currently for sale in this city
Homes here sell close to asking price
Homes in this market sold for an average of 97.5 percent of their asking price over the past year, above the 96.4 percent median across the markets we publish.
This 3-bed single family in St. Thomas is available now. Want me to connect you with the agent or keep you posted on any price updates?
Approximate location — exact address confirmed upon showing
This home lists at $420,999, about 5.4× the local median household income of $77,500.
Carrying it typically needs a household income of about $82,236 (20% down, 25-yr amortization, stress-tested) — roughly 6% above the area median.
Source: Statistics Canada, 2021 Census (FSA N5P)
Pick a time that suits you. A verified local agent confirms within 24h.
Loading rates, 30-yr amortization
Cash Needed to Close
Rates via our partner mortgage brokers at iShopRates · Estimates only, not financial advice