Upgraded 4-bed detached in central Oshawa with finished basement and separate entrance
A renovated 4-bedroom detached in central Oshawa listed at $599,900, with a finished basement and separate entrance that supports a secondary-suite income strategy. Estimated cap rate of 4.5% places it among the more functional cash-flow candidates in the Durham market at this price point.
Anatoli Chtcherbatov
Analyst · Sutton Group Admiral Realty
List price
$599,900
Cap rate
+4.50%
Est. monthly rent
$3,450
Source: comparables_widened
CF at 50% down
+$500/mo
first positive
Cash-on-cash
+1.89%
at 50% down
The Deal
A renovated 4-bedroom detached in central Oshawa listed at $599,900, with a finished basement and separate entrance that supports a secondary-suite income strategy.
Section · Financial Reality
Five ways to buy. The math, side by side.
Each column shows the actual monthly cash flow and cash-on-cash return at that leverage. Click a column for the full breakdown.
Acquisition
| Down payment | $209,965 |
| Mortgage principal | $389,935 |
| Land transfer tax | $8,999 |
| Closing costs | $8,999 |
| Total acquisition | $227,962 |
Monthly cash flow
| Estimated rent | +$3,450 |
| Operating expenses | -$1,198 |
| Mortgage payment | -$2,277 |
| Net cash flow | -$26/mo |
Expense breakdown
| Property tax | $0/mo |
| Vacancy allowance | $173/mo |
| Maintenance reserve | $500/mo |
| Insurance | $250/mo |
| Property management | $276/mo |
Math by deterministic Python calculator. Rate 4.99% over 25 years. Rent source: comparables_widened (33 comps).
Breakeven
This property turns cash-flow positive at 35.7% down.
Run your own scenario
Move the assumptions. See the math live.
Live result
All figures are estimates only and do not constitute financial advice. The sliders use the same math as the locked five-scenario calculator; only assumptions change. Total acquisition includes the down payment, land transfer tax ($8,999), and closing costs ($8,999).
Section · Investment Thesis
Why this property.
This central Oshawa detached is priced at $599,900 and underwrites to an estimated gross annual rent of $41,400, an annual NOI of $27,019.50, and an estimated cap rate of 4.5%. The property has been meaningfully upgraded, including a quartz kitchen, 200 AMP electrical panel, exterior waterproofing completed in 2022, and a finished basement with separate entrance, which is the feature that drives the rental thesis here. The 4-bedroom layout (three bedrooms plus a finished attic used as a fourth) over a separately accessible lower level lends itself to a primary-plus-secondary-suite configuration common across Oshawa investor stock.
Leverage sensitivity is high on this asset. At 20% down ($119,980), the estimated monthly mortgage payment is $2,802.77 and projected monthly cash flow is -$551.14, with a cash-on-cash return of -4.79%. At 35% down ($209,965), the property approaches breakeven with estimated monthly cash flow of -$25.62 and a -0.13% cash-on-cash return. The 50% down scenario ($299,950) is the first leverage point with clearly positive carry, producing estimated monthly cash flow of $499.89 and a 1.89% cash-on-cash return. At 75% down, projected monthly cash flow rises to $1,375.76 (3.53% cash-on-cash), and an all-cash purchase produces $2,251.62 monthly and a 4.37% cash-on-cash return matching the cap rate.
The minimum recommended down payment for neutral-to-positive carry is 35%, with 50% being the first scenario that produces a meaningful monthly surplus. Investors using minimum-down conventional financing should expect to fund the carry shortfall out of pocket until rents reset or rates ease. The hold-period thesis is medium to long term: Oshawa's demand drivers (Ontario Tech University, Durham College, the Highway 407/418 build-out, and continued GO Transit investment) support a buy-and-hold strategy, with the separate-entrance basement providing optionality to add a second rental stream and improve realized yield over time.
No recent sold comparables were available for this analysis, so the rent and value assumptions rely on widened comparables (33 data points) rather than block-level sales. Buyers should validate achievable rents for both the upper unit and basement suite before committing.
Key features
- 4 bedrooms (3 on second floor plus finished attic)
- Finished basement with separate entrance for secondary-suite potential
- Upgraded kitchen with quartz countertops
- Upgraded 200 AMP electrical panel
- Exterior waterproofing completed in 2022
- Freshly paved driveway with 2-car parking
- Fully fenced backyard
- Pot lights throughout and covered glass porch
Original MLS description
Beautifully upgraded 4-bedroom home in a prime location! Features a freshly paved driveway with 2-car parking, elegant pot lights throughout, and a covered glass porch for added curb appeal. Enjoy an upgraded kitchen with quartz countertops and almost new appliances. The home offers 3 spacious bedrooms on the 2nd floor plus a finished attic currently used as a 4th bedroom. The finished basement with separate entrance offers great flexibility for extended family or potential income. Additional highlights include a cozy fireplace, upgraded 200 AMP panel, and exterior waterproofing completed in 2022 for added peace of mind. Fully fenced backyard-perfect for privacy and outdoor enjoyment. Conveniently located close to all amenities and top-rated schools. (42907407)
Section · Neighborhood
Where it sits.
Central
Central Oshawa is one of the more affordable detached markets in Durham Region and continues to benefit from infrastructure investment, including GO Transit expansion on the Lakeshore East line and the completion of Highway 418. The area draws tenant demand from Ontario Tech University, Durham College, and Lakeridge Health employees, alongside commuters into east Toronto and Scarborough.
The Central pocket specifically offers older detached housing stock with deeper lots, supporting secondary-suite conversions and multi-generational use. Proximity to amenities along Simcoe Street and King Street, plus access to the 401, keeps both rental absorption and resale liquidity reasonable relative to surrounding submarkets.
Section · Risk
What could go wrong.
Honest framing of unknowns, assumptions, and downside scenarios.
High leverage sensitivity: negative projected monthly cash flow at both 20% and 35% down scenarios
Reported living area of 139 sqft in the data feed appears to be a data error; buyer should verify actual square footage
Rent estimate relies on widened comparables (33 data points) rather than direct block-level comps
No recent sold comparables available to triangulate value
Realized yield depends on legally renting the basement as a secondary suite; buyer should confirm zoning and retrofit compliance with the City of Oshawa
Property tax is reported as $0 in the source data, which is almost certainly a data omission rather than reality; carrying-cost projections will worsen once actual tax is applied