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Caledon, King, Toronto, New Tecumseth & Orangeville(437) 228-3434
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MLS® E13691246For SaleDetached

278 William St

O'Neill, Oshawa, Ontario L1G 1K8

Map
1 / 4
278 William St, Oshawa, photo 1
Asking$594,900
Bedrooms
2+2
Bathrooms
2
Size
700–1,100sq ft
Per sq ft
$661at the range’s middle
Lot
36 x 215 ft
Tax a year
$4,3482026 tax year
Parking
4none
Days on market
Members

The brief

About 278 William St

278 William St is a 2+2-bedroom, 2-bathroom detached house in O'Neill, Oshawa, listed for sale at an asking price of $594,900 (MLS® E13691246).

Legal Duplex Raised Bungalow on a quite street, the property has a two/plus car detached garage in the rear of the property and a one car paved parking spot in the front yard. The access to the garage is by way of an easement over 292 William Steet. There is a 2 bedroom apartment up and a 2 bedroom apartment down. Both units are currently rented the upper unit for $1473.00 a month plus hydro the lower unit is rented for $1488.30 plus hydro, both tenants would like to stay. The property shows very well both up and down unit. The tenants are excellent tenants always pay on time and keep the units looking really good. The property backs onto the development underway to the north, which is the vacant parcel that starts at Adelaide Road and Ritson Road and goes south and east. 292 William is being sold as well and listed at $999,900.00 the two properties combined are almost an half an acre.

Insights

  • Condition Score

    Good

    6 condition-related facts documented

    Source: Listing age, structured features and disclosed update language; not an inspection.

  • Cashflow Quality

    Covers costs

    +$298/mo against the cost of owning (20% down, 4.8%, 25 yrs)

    Source: Median of 32 detached homes with 4 bedrooms for lease in Oshawa right now. Cost of owning counts the mortgage and property tax.

Condition uses listing-record signals, not an inspection.

The home

Key facts

Tax
$4,348 / 2026
MLS® number
E13691246
Board
TRREB MLS®
Property Type
Detached
Days on market
Size
700-1100 sqft
Lot Size
36 x 215 ft
Listed on
Parking
None, 4 Parking
Listing brokerage: Re/Max Impact RealtyData source: TRREB MLS®Information deemed reliable but not guaranteed. Contained information is subject to errors, omissions, and changes without notice. Information should be independently verified.

Property details

Property

Property Type
Detached
Style
Bungalow-Raised
Community
O'Neill
Municipality
Oshawa

Building

Size
700-1100 sqft
Construction
Brick

Inside

Bedrooms
2+2
Bathrooms
2
Bathroom Details
1 × 4pc Main, 1 × 4pc Lower
Basement Type
Apartment
Kitchens
1

Parking

Driveway
Mutual
Garage Type
None
Additional Parking
4
Total Parking
4

Utilities

Water
Municipal
Cooling
Window Unit
Heating Type
Forced Air

Land

Sewer
Sewers
Frontage
36 ft
Depth
215 ft
Lot Size
36 x 215 ft

Additional

Foundation
Block, Concrete
Roof
Asphalt Shingle
Fireplace
No
Pool
None
Den
No
Family room
No
Extras
2 fridges 2 stoves washer dryer

Rooms

RoomSizeFeaturesLevel
Kitchen1.08 × 2.25 m—Main
Living3.56 × 3.44 m—Main
Br2.96 × 2.68 m—Main
2nd Br2.87 × 2.59 m—Main
Kitchen3.66 × 1.52 m—Lower
Library3.35 × 3.11 m—Lower
Br2.74 × 2.69 m—Lower
2nd Br2.8 × 2.59 m—Lower

Listing history

Buy/sell history for 278 William St, Oshawa, Ontario

Sale history on this site covers the last 2 years, the window permitted under the TRREB MLS® VOW agreement.

Date StartDate EndList PricePriceEventListing ID
Date StartN/AN/A$594,900N/APcE13691246

Members see the full history. Prices are hidden from signed-out visitors.

The numbers

Mortgage Calculator

Plan with the current asking price

20% · $118,980

CMHC insurance: not required at 20% down. Payments use Canadian semi-annual compounding.

Mortgage Details

4.8% · 5-year term · 25-year amortization · 20% down

Total down payment
$118,980
Total mortgage amount
$475,920
Total interest payment
$338,580
Total purchase cost
$933,480
Mortgage payment
$2,715/mo

Cash Flow Analysis

If you rented this home out at 20% down

Break-even down payment

11%

Monthly carrying cost

$3,077
$298per month
  • Carrying cost $3,077
  • Surplus $298

Rental income opens at $3,375, the median asking rent of 32 comparable homes for lease in Oshawa. Type over it with the rent you expect. This is a planning tool, not advice.

Land transfer tax on this home

Ontario land transfer tax
$8,373
Total land transfer tax
$8,373
First-time buyer rebates (Ontario up to $4,000)
−$4,000
Total for first-time buyers
$4,373
See how this is worked out
0.5% on the first $55,000
$275
1.0% from $55,000 to $250,000
$1,950
1.5% from $250,000 to $400,000
$2,250
2.0% from $400,000 to $594,900
$3,898
Ontario total
$8,373

An estimate at the asking price, for a home with one or two single-family residences. Your lawyer confirms the exact amount.

Estimate

Estimated value requires sign in

Market estimates use sold comparables and are available after you sign in and accept MLS® VOW terms.

The estimate is an automated value built from public and MLS® data. It is not an appraisal; ask Kassaundra Dobson, Broker of Record for a full comparative market analysis.

Comparable sales

Comparable sales require sign in

Closing prices and sold comps are available to registered visitors who accept MLS® VOW terms on this site.

The land

Lot

Lot area
7,740 sq ft719 m²
Street frontage
36 ft11 m
Depth
215 ft65.5 m
36 × 215 ftWILLIAM ST

The area is the frontage multiplied by the depth, so boundaries are approximate. Confirm with a survey before you buy.

Source: the MLS® listing record, measured by MPAC.

Land and environment

Public records about this location. Not part of the MLS® listing and not provided by the listing brokerage.

13 records · 7 on fileRead 2026-10-28
250 m500 m1 km2 kmBeyond · area-wideNo mapped wetland within 120 mNo water-supply well recorded within 250 mGroundwater recorded about 7 m below ground nearbyOutside the Greenbelt, Oak Ridges Moraine and Niagara Escarpment plan areasNearest airport: 2.9 kmA trail on the Ontario trail network within 1 kmNo licensed pit or quarry within 2 kmNo recorded oil, gas or salt well within 250 mNo facility within 1 km reports pollutant releases to Environment Canada1 federal contaminated site within 1 kmElectricity is distributed here by Oshawa PUC Networks Inc.Wired internet 50/10 Mbps or faster is listed at a household 40 m awayAcross the surrounding area: fibre to the home, cable, DSL internet listed
On record Checked, none on record

Water and conservation3

  • No mapped wetland within 120 m120 m
  • No water-supply well recorded within 250 m82 test or monitoring holes also recorded.250 m
  • Groundwater recorded about 7 m below ground nearbyThe middle water level in the well records within 500 m (246 records). It changes with the season and from spot to spot.500 m

Province of Ontario open data

Planning and building activity2

  • Outside the Greenbelt, Oak Ridges Moraine and Niagara Escarpment plan areasAt the address
  • Nearest airport: 2.9 km2.9 km

Province of Ontario open data

Around the home1

  • A trail on the Ontario trail network within 1 km1 km

Province of Ontario open data

Environmental records4

  • No licensed pit or quarry within 2 km2 km
  • No recorded oil, gas or salt well within 250 m250 m
  • No facility within 1 km reports pollutant releases to Environment CanadaThe nearest is A.G. Simpson Automotive Inc. — OSHAWA PLANT, 3.0 km away. Only facilities above the inventory’s reporting thresholds are listed.1 km
  • 1 federal contaminated site within 1 kmAll of them are closed. The federal inventory covers federal land only, not provincial or private sites.1 km

Province of Ontario open data · Government of Canada open data

Power and internet3

  • Electricity is distributed here by Oshawa PUC Networks Inc.At the address
  • Wired internet 50/10 Mbps or faster is listed at a household 40 m awayFixed wireless 50/10 Mbps or faster. LTE mobile coverage listed. ISED’s National Broadband Data at the nearest household point (40 m from the listing); 50/10 Mbps is its top category and includes faster plans. Confirm with a provider for this address.40 m
  • Across the surrounding area: fibre to the home, cable, DSL internet listedFibre to the home: Bell, NFTC, Rogers. Cable: Rogers. DSL: Bell. Fixed wireless: Bell, Dash Networks, Rogers, Ruralwave, Xplore. Mobile: Bell, Freedom Mobile, Rogers, Telus. Satellite: Xplore. ISED’s list for the surrounding ~25 km² area; check with a provider for this address.Area-wide

Ontario Energy Board · Innovation, Science and Economic Development Canada

Each record is placed at the distance its own line states. None of it is an inspection of the property. Confirm anything that matters to you with the municipality, Central Lake Ontario Conservationor the record’s publisher.

Contains information licensed under the Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Ontario.

The market

Detached homes for sale in O'Neill right now

For sale now
43
Median asking price
$680K

Middle half: $592K to $724K

New in 7 days
8

25 in 28 days

Price cuts
12%

5 listings

This home is asking 13% below the median.

See all homes in O'Neill

Asking prices and counts of the MLS® listings on this site as of today. Asking figures only, never sold or leased prices.

Market area · filters apply to the charts below

The street

Map and tour

Transit nearby

StationLinesDistance
Durham College Oshawa GOGO Transit train: Lakeshore East4.3 km

The nearest subway, light rail, train, bus rapid transit stations 5 km, as the crow flies. Source: GO Transit schedule data (GTFS) from Metrolinx under the Open Government Licence – Ontario – Metrolinx, downloaded October 18, 2026. Data used in this product or service is provided with the permission of Metrolinx. Metrolinx makes no representations or warranties of any kind, express or implied, with respect to the Data and assumes no responsibility for the accuracy or currency of the data used in this product or service. Contains information licensed under the Open Government Licence – Ontario – Metrolinx.

Schools nearby

ElementaryTypeDistanceEQAO average 2024–25
Mary Street Community SchoolDurham DSBPublic · grades JK–8650 m76%Grade 6 average
Coronation Public SchoolDurham DSBPublic · grades JK–8700 m71%Grade 6 average
Sir Albert Love Catholic SchoolDurham CDSBCatholic · grades JK–81.2 km69%Grade 6 average
ÉÉC Corpus-ChristiConseil scolaire catholique MonAvenirFrench-language Catholic · grades JK–62.6 km76%Grade 6 average
SecondaryTypeDistanceGrade 9 math 2024–25
O'Neill Collegiate and Vocational InstituteDurham DSBPublic · grades 9–121 km49%Grade 9 math
Eastdale Collegiate and Vocational InstituteDurham DSBPublic · grades 9–121.8 km35%Grade 9 math
Monsignor John Pereyma Catholic Secondary SchoolDurham CDSBCatholic · grades 9–122.6 km38%Grade 9 math
ÉSC Saint-Charles-GarnierConseil scolaire catholique MonAvenirFrench-language Catholic · grades 9–128.4 km67%Grade 9 math

EQAO: share of students at or above the provincial standard, 2024–25 (Ontario open data). These are the schools nearest this home, not the schools it is assigned to: boundaries change, and some schools take students by application. Confirm with the board before you buy. Contains information licensed under the Open Government Licence – Ontario.

The verdict

Similar Active Listings

Recently sold nearby

Sold prices in O'Neill are shown to signed-in members.

Email Kassaundra Dobson, Broker of Record