Exceptional investment opportunity featuring nine detached residential rental units on one 2.74-acre parcel, conveniently located on Black Diamond Road just minutes from Highway 401. Fully rented and family owned since 1978, this established income-producing property is serviced by municipal water, municipal sewer and natural gas. The unit mix includes six 2-bedroom homes, two 3-bedroom homes and one 1-bedroom home, with many of the units having received updates over the years. Capital improvements include five newer furnaces and nine separate 100-amp electrical panels. The property also includes a detached 2.5-car garage and a detached single-car garage, providing additional storage and functionality. Frontage on two separate roads offers convenient access and added flexibility. One tenant currently manages snow removal and lawn maintenance, helping to reduce operating expenses. Ideally suited to investors seeking to expand their portfolio or multi-generational families looking for separate residences on one property, this unique offering provides established rental income, long-term potential and convenient access to major routes, amenities and services. Properties of this size and configuration are rarely available.
works out to roughly $2,856 per square foot. Chat with Zara if you'd like a deeper read on whether this multiplex fits your budget and timing.
Inside 45 Black Diamond Rd
Every detail from the listing, in one place.
Type
Multiplex
Style
Bungalow
Living space
700-1100 sq ftas stated on the listing
Parking
21.5 spacesYes garage
Basement
Crawl Space
Features & systems
Parking & garage
Garage
Yes
Parking spaces
21.5
Interior
Basement
Crawl Space
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
Bungalow
Property class
Multiplex
45 Black Diamond Rd Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X13659154$1,999,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 45 Black Diamond Rd Compares to the Belleville 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
$9,820
/mo
based on the purchase price of $1,999,000
$399,800 cash
$1,599,200 financed
$1,346,946 total interest
Principal54%$1,599,200
Interest46%$1,346,946
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.
For homeowners nearby
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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.
Keep looking near 45 Black Diamond Rd
Homes for sale in Belleville
Every active Belleville MLS® listing, updated all day.
Average days on market42Homes sold in about 42 days on average.
Sale-to-list ratio97.1%On average, homes sold below asking.
Active listings391Homes for sale here right now.
Median vs prior 90 days+2.0%Compared with Apr 16 – Jul 15, 2026: prices up.
Based on 332 sales from Jul 15 – Oct 13, 2026 (204 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 45 Black Diamond Rd
How much is 45 Black Diamond Rd listed for?
45 Black Diamond Rd is listed at $1,999,000 (MLS® X13659154). Summitly updates the price as soon as the MLS® record changes.
Is $1,999,000 a good price for 45 Black Diamond Rd?
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Belleville. 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 45 Black Diamond Rd changed?
No — 45 Black Diamond Rd is still listed at its original asking price of $1,999,000.
How many bedrooms and bathrooms does 45 Black Diamond Rd have?
45 Black Diamond Rd has 9 bathrooms, with about 700–1,100 square feet of living space. It is a multiplex in Belleville.
How much would the monthly mortgage be on 45 Black Diamond Rd?
About $9,820 a month — principal and interest on $1,999,000 with 20% down ($399,800), 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 45 Black Diamond Rd compare with other homes in Belleville?
Its asking price of $1,999,000 is about 284% above the median sold price in Belleville over the last 90 days, $520,000, across 332 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 45 Black Diamond Rd been sold before?
Summitly has no earlier MLS® sale or lease of 45 Black Diamond Rd on record from the last two years. Older records aren't shown under TRREB rules.
Where is 45 Black Diamond Rd?
45 Black Diamond Rd is in Belleville, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 45 Black Diamond Rd been on the market?
64 days — 45 Black Diamond Rd was listed on August 10, 2026.
What is the price per square foot of 45 Black Diamond Rd?
About $1,817 to $2,856 per square foot: the asking price of $1,999,000 over the 700–1,100 sq ft the listing gives as its size range.
Does 45 Black Diamond Rd have parking or a garage?
Yes — the listing gives 21.5 parking spaces. Garage: Yes.
Does 45 Black Diamond Rd have a basement, and is it finished?
The listing describes the basement as: Crawl Space.
