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Caledon, King, Toronto, New Tecumseth & Orangeville(437) 228-3434
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MLS® E14005848For SaleDetached

308 King St

O'Neill, Oshawa, Ontario L1H 1C8

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308 King St, Oshawa, photo 1
Asking$899,900
Bedrooms
4+1
Bathrooms
3
Size
1,500–2,000sq ft
Per sq ft
$514at the range’s middle
Lot
Under 0.50 acres
Tax a year
$6,0022026 tax year
Built
100+
Parking
61 detached
Days on market
Members

The brief

About 308 King St

308 King St is a 4+1-bedroom, 3-bathroom detached house in O'Neill, Oshawa, listed for sale at an asking price of $899,900 (MLS® E14005848).

Welcome to this stunning brick two-storey home situated on a 50-foot lot east of downtown Oshawa, with nearly 1,900 square feet above grade (MPAC) as well as a lower-level in-law suite with its own entrance and an inviting and indulgent saltwater inground heated pool in the backyard. The main floor keeps its century charm while offering dreamy updates to offer the absolute best of both worlds! The combined living and dining rooms stretch nearly 27 feet, anchored by a fireplace at one end and bright south-facing windows at the other, finished with crown moulding and luxury vinyl flooring. The family room allows the light to flood through the open concept space with an abundance of south facing windows. It also opens to the kitchen featuring quartz countertops, white cabinetry, glass front uppers, a large island under a stainless chimney hood, and a double sink under the windows. This level is finished with a 2-piece bath and a mudroom leading to the covered back deck. Upstairs, four rooms open off the hall. The primary bedroom is spacious and bright with a large sliding door closets and ultra convenient laundry nook (2022) within! There are 3 more rooms that can be used as bedrooms but are currently presented as a second bedroom, a cozy family room and an office. The 5-piece modern bath includes a shower panel system in a glass shower and a freestanding tub. The lower level, finished in 2022, has a separate entrance, a second kitchen, a rec room, a bedroom, its own laundry, and an elegant 4-piece bath with a make-up station, soaker tub and a glass walk-in shower. Outside, enjoy the heated saltwater pool with concrete surround or let kids play on the lawn while you comfortably watch from the deck. A long private drive runs to the detached garage, with six parking spaces in all. Roof 2022, windows 2020, furnace and central air 2022. Costco and No Frills are both under a kilometre away. 401 is minutes away. Home is being sold as a single family residence.

Insights

  • Condition Score

    Good

    6 condition-related facts documented

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

  • Cashflow Quality

    Shortfall

    −$1,106/mo against the cost of owning (20% down, 4.8%, 25 yrs)

    Source: Median of 9 detached homes with 5 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
$6,002 / 2026
MLS® number
E14005848
Board
TRREB MLS®
Property Type
Detached
Building Age
100+
Days on market
Size
1500-2000 sqft
Lot Size
50 x 147.92 ft
Listed on
Parking
1 Detached, 6 Parking
Listing brokerage: EXP 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
2-Storey
Community
O'Neill
Municipality
Oshawa

Building

Size
1500-2000 sqft
Building Age
100+
Construction
Brick

Inside

Bedrooms
4+1
Bathrooms
3
Bathroom Details
1 × 5pc 2nd, 1 × 4pc Bsmt, 1 × 2pc Main
Basement Type
Finished
Kitchens
1

Parking

Driveway
Private
Garage Type
Detached
Garage
1
Additional Parking
5
Total Parking
6

Utilities

Water
Municipal
Cooling
Central Air
Heating Type
Forced Air

Land

Sewer
Sewers
Frontage
50 ft
Depth
147.92 ft
Lot Size
50 x 147.92 ft

Additional

Foundation
Poured Concrete
Roof
Asphalt Shingle
Fireplace
Yes
Pool
Inground
Den
Yes
Family room
Yes
Extras
Existing: Main floor - Stainless Steel fridge, Stainless Steel stove, Stainless Steel range hood, Stainless Steel dishwasher; lower level Stainless Steel fridge and Stainless Steel stove; two washers and two dryers; all existing electric light fixtures; all existing window coverings; pool equipment.

Rooms

RoomSizeFeaturesLevel
Kitchen3.66 × 3.75 mQuartz Counter, Centre Island, Crown MouldingMain
Family3.82 × 4.29 mOpen Concept, Pot Lights, Marble FloorMain
Dining3.79 × 8.15 mCombined W/Living, South View, Vinyl FloorMain
Living3.79 × 8.15 mCombined W/Dining, Fireplace, Crown MouldingMain
Primary3.84 × 4.14 mCombined W/Laundry, Double Closet, O/Looks Frontyard2nd
2nd Br3.74 × 3.8 mCloset, Nw View, hardwood floor2nd
3rd Br3.69 × 3.77 mCloset, Sw View, hardwood floor2nd
4th Br2.01 × 2.79 mCasement Windows, South View, hardwood floor2nd
Kitchen2.38 × 3.46 mQuartz Counter, Stainless Steel Appl, Ceramic Back SplashBsmt
Rec3.59 × 4.64 mAbove Grade Window, B/I Shelves, Pot LightsBsmt
Br3.16 × 3.59 mAbove Grade Window, Pot Lights, Vinyl FloorBsmt
Laundry1.61 × 3.52 mUnfinished, Vinyl FloorBsmt

Listing history

Buy/sell history for 308 King 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$899,900N/AFor SaleE14005848

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

The numbers

Mortgage Calculator

Plan with the current asking price

20% · $179,980

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
$179,980
Total mortgage amount
$719,920
Total interest payment
$511,880
Total purchase cost
$1,411,780
Mortgage payment
$4,106/mo

Cash Flow Analysis

If you rented this home out at 20% down

Break-even down payment

42%

Monthly carrying cost

$4,606
−$1,106per month
  • Rent $3,500
  • Shortfall $1,106

Rental income opens at $3,500, the median asking rent of 9 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
$14,473
Total land transfer tax
$14,473
First-time buyer rebates (Ontario up to $4,000)
−$4,000
Total for first-time buyers
$10,473
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 $899,900
$9,998
Ontario total
$14,473

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

Street frontage
50 ft15.2 m
Depth
147.92 ft45.1 m
Lot size
Under 0.50 acresAs the board bands it

The record marks this lot irregular, so its area is not the frontage multiplied by the depth. It is not given here. 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: 3.2 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 30 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 m32 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 (149 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: 3.2 km3.2 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, 2.7 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 30 m awayFixed wireless 50/10 Mbps or faster. LTE mobile coverage listed. ISED’s National Broadband Data at the nearest household point (30 m from the listing); 50/10 Mbps is its top category and includes faster plans. Confirm with a provider for this address.30 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 32% above the median, higher than three quarters of them.

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

Transit nearby

StationLinesDistance
Durham College Oshawa GOGO Transit train: Lakeshore East4.2 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–8800 m76%Grade 6 average
Coronation Public SchoolDurham DSBPublic · grades JK–8900 m71%Grade 6 average
St Hedwig Catholic SchoolDurham CDSBCatholic · grades JK–61.2 km67%Grade 6 average
ÉÉC Corpus-ChristiConseil scolaire catholique MonAvenirFrench-language Catholic · grades JK–62.4 km76%Grade 6 average
SecondaryTypeDistanceGrade 9 math 2024–25
O'Neill Collegiate and Vocational InstituteDurham DSBPublic · grades 9–121.3 km49%Grade 9 math
Eastdale Collegiate and Vocational InstituteDurham DSBPublic · grades 9–121.9 km35%Grade 9 math
Monsignor John Pereyma Catholic Secondary SchoolDurham CDSBCatholic · grades 9–122.4 km38%Grade 9 math
ÉSC Saint-Charles-GarnierConseil scolaire catholique MonAvenirFrench-language Catholic · grades 9–128.6 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

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Email Kassaundra Dobson, Broker of Record