An excellent opportunity for investors or buyers looking to get into the market with the added benefit of a mortgage helper! This side-by-side duplex in the quiet community of Arkona offers two separate units, making it ideal for an owner-occupant looking to offset their mortgage or an investor seeking to expand their portfolio. Both units were fully renovated in 2021, including new electrical, plumbing, insulation, drywall, lighting and more. The vacant east unit features 2 bedrooms, a generously sized 5-piece bathroom and a finished basement, offering additional living space. A detached garage adds extra convenience and storage. Located just minutes from Forest and approximately 30 minutes from both Sarnia and London, this property offers the appeal of small-town living with convenient access to nearby amenities. One unit is currently vacant, providing flexibility for a new owner, while the other is tenanted at $1,500 per month, with the tenant responsible for hydro and gas. Whether you're looking to live in one unit and have the other help with the mortgage or add an income property to your portfolio, this is an opportunity worth exploring!
4 bedrooms, 2 bathrooms, about 1,500 sq ft, works out to roughly $400 per square foot. Chat with Zara if you'd like a deeper read on whether this duplex fits your budget and timing.
Inside 7 Union St W
Every detail from the listing, in one place.
Type
Duplex
Style
2-Storey
Living space
1500-2000 sq ftas stated on the listing
Parking
8 spacesYes garage
Basement
Finished, Partial Basement
Features & systems
Parking & garage
Garage
Yes
Parking spaces
8
Interior
Basement
Finished · Partial Basement
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
2-Storey
Property class
Duplex
7 Union St W Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X14142486$599,900
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 7 Union St W Compares to the Lambton Shores Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
Independent mortgage broker · OAC · rates subject to change and underwritingMortgage Squad →
Referral disclosure: Summitly may refer you to Mortgage Squad Advisors, an affiliated mortgage partner. You are free to choose any lender or mortgage professional.
Monthly cost
Enter a rate to see the monthly cost
An estimate, not a quote. Utilities and insurance are extra.
Affordability calculator
Estimated monthly payment
$2,947
/mo
based on the purchase price of $599,900
$119,980 cash
$479,920 financed
$404,219 total interest
Principal54%$479,920
Interest46%$404,219
20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.
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Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Rental income potential
Est. monthly rent
low–high
Gross yield
rent × 12 ÷ price
Cap rate (est.)
net of tax + fees
Summitly AI estimate for discussion only — not from TRREB or the MLS® feed, and not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price.
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Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Similar homes for sale nearby in Lambton Shores
Other 6-bed homes for sale in Lambton Shores around $600K.
Average days on market67Homes sold in about 67 days on average.
Sale-to-list ratio95.2%On average, homes sold below asking.
Active listings156Homes for sale here right now.
Median vs prior 90 days+8.3%Compared with May 7 – Aug 5, 2026: prices up.
Based on 77 sales from Aug 5 – Nov 3, 2026 (59 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 7 Union St W
How much is 7 Union St W listed for?
7 Union St W is listed at $599,900 (MLS® X14142486). Summitly updates the price as soon as the MLS® record changes.
Is $599,900 a good price for 7 Union St W?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in Lambton Shores. The rating is an automated opinion, not an appraisal; "What's it worth?" on this page shows how it is worked out. See Zara's estimate
Has the price of 7 Union St W changed?
No — 7 Union St W is still listed at its original asking price of $599,900.
How many bedrooms and bathrooms does 7 Union St W have?
7 Union St W has 4 bedrooms and 2 bathrooms, with about 1,500–2,000 square feet of living space. It is a duplex in Lambton Shores.
How much would the monthly mortgage be on 7 Union St W?
About $2,947 a month — principal and interest on $599,900 with 20% down ($119,980), a 25-year amortization and an assumed 5.5% interest rate. The mortgage calculator on this page lets you change the down payment, amortization and rate.
How does 7 Union St W compare with other homes in Lambton Shores?
Its asking price of $599,900 is about 15% below the median sold price in Lambton Shores over the last 90 days, $705,000, across 77 closed sales on the TRREB MLS®. A city median mixes every type and size of home, so the comparable sales on this page are the closer guide.
Has 7 Union St W been sold before?
Summitly has no earlier MLS® sale or lease of 7 Union St W on record from the last two years. Older records aren't shown under TRREB rules.
Where is 7 Union St W?
7 Union St W is in Lambton Shores, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 7 Union St W been on the market?
4 days — 7 Union St W was listed on October 30, 2026.
What is the price per square foot of 7 Union St W?
About $300 to $400 per square foot: the asking price of $599,900 over the 1,500–2,000 sq ft the listing gives as its size range.
Does 7 Union St W have parking or a garage?
Yes — the listing gives 8 parking spaces. Garage: Yes.
Does 7 Union St W have a basement, and is it finished?
The listing describes the basement as: Finished, Partial Basement.
