55 William St E #505 is a 3-bedroom, 1-bathroom condo in Oshawa, listed for $379,900. It has 1000-1199 sq ft of living space.
1Welcome to this spacious and well-maintained 3-bedroom, 2-bathroom end-unit condo in a fantastic location close to shopping, restaurants, transit, and all amenities.
2This home features a newer heat pump (approximately 3 years old) for year-round comfort and efficiency.
3Enjoy the many building amenities including a heated indoor pool, parkade, library, car wash bay, and more.
Welcome to this spacious and well-maintained 3-bedroom, 2-bathroom end-unit condo in a fantastic location close to shopping, restaurants, transit, and all amenities. This home features a newer heat pump (approximately 3 years old) for year-round comfort and efficiency. Enjoy the many building amenities including a heated indoor pool, parkade, library, car wash bay, and more. A great opportunity for comfortable, convenient condo living!
3 bedrooms, 1 bathroom, about 1,000 sq ft, works out to roughly $380 per square foot. Chat with Zara if you'd like a deeper read on whether this condo fits your budget and timing.
Inside 55 William St E #505
Every detail from the listing, in one place.
Type
Condo
Style
Apartment
Living space
1000-1199 sq ftas stated on the listing
Parking
1 spaceYes garage
Basement
None
Features & systems
Parking & garage
Garage
Yes
Parking spaces
1
Interior
Basement
None
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
Apartment
Property class
Condo Apartment
55 William St E #505 Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
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
$1,866
/mo
based on the purchase price of $379,900
$75,980 cash
$303,920 financed
$255,980 total interest
Principal54%$303,920
Interest46%$255,980
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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Similar homes for sale nearby in Oshawa
Other 2–3 bed homes for sale in Oshawa around $380K.
Average days on market28Homes sold in about 28 days on average.
Sale-to-list ratio99.4%On average, homes sold below asking.
Active listings810Homes for sale here right now.
Median vs prior 90 days−2.1%Compared with Apr 24 – Jul 23, 2026: prices down.
Based on 665 sales from Jul 23 – Oct 21, 2026 (539 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
More in this building
1 for sale at 55 William St E — plus its sale and lease history.
55 William St E #505 is listed at $379,900 (MLS® E13231170). Summitly updates the price as soon as the MLS® record changes.
Is $379,900 a good price for 55 William St E #505?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in Oshawa. 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 55 William St E #505 changed?
Yes — it was first listed at $399,000 and is now $379,900, a drop of $19,100 (4.8%).
How many bedrooms and bathrooms does 55 William St E #505 have?
55 William St E #505 has 3 bedrooms and 1 bathroom, with about 1,000–1,199 square feet of living space. It is a condo in Oshawa.
Is 55 William St E #505 close to transit?
The nearest rapid-transit station is Oshawa GO Station (Lakeshore East GO), about 3.7 km in a straight line. Distances are straight-line, not walking routes; check the transit agency for routes and schedules.
How much would the monthly mortgage be on 55 William St E #505?
About $1,866 a month — principal and interest on $379,900 with 20% down ($75,980), 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 55 William St E #505 compare with other homes in Oshawa?
Its asking price of $379,900 is about 43% below the median sold price in Oshawa over the last 90 days, $665,000, across 665 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 55 William St E #505 been sold before?
Summitly has no earlier MLS® sale or lease of 55 William St E #505 on record from the last two years. Older records aren't shown under TRREB rules.
Where is 55 William St E #505?
55 William St E #505 is in Oshawa, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 55 William St E #505 been on the market?
141 days — 55 William St E #505 was listed on June 2, 2026.
What is the price per square foot of 55 William St E #505?
About $317 to $380 per square foot: the asking price of $379,900 over the 1,000–1,199 sq ft the listing gives as its size range.
Does 55 William St E #505 have parking or a garage?
Yes — the listing gives 1 parking space. Garage: Yes.
