528 Guy St
Castle Heights, Ottawa, Ontario K1K 1B9
- Bedrooms
- 4+1
- Bathrooms
- 2
- Size
- 3,000–3,500sq ft
- Per sq ft
- $165at the range’s middle
- Lot
- 40 x 109 ft
- Tax a year
- $3,9952025 tax year
- Parking
- 3none
- Days on market
- Members
The brief
About 528 Guy St
528 Guy St is a 4+1-bedroom, 2-bathroom duplex in Castle Heights, Ottawa, listed for sale at an asking price of $535,000 (MLS® X13596528).
Excellent opportunity for investors or owner-occupants with this well-maintained up-and-down duplex offering strong income potential and flexible living arrangements. Live in one unit while generating rental income from the other, or maximize your investment by renting both units. The main floor unit is currently vacant and features a spacious layout with 1 bedroom and the potential for a second bedroom in the lower level. This unit offers a bright eat-in kitchen, generous living and dining/family room areas, ample storage space, and an updated bathroom. The vacant status provides immediate occupancy for an owner-user or the opportunity to secure market rent. The upper unit features 2 bedrooms, a spacious living room, dedicated laundry area, and a private south-facing balcony that enjoys excellent natural light throughout the day. This unit is currently rented at $995/month, providing immediate income from day one. Several major updates have already been completed, helping to reduce future capital expenses and providing peace of mind for the next owner. Improvements include a new roof (2023), gas furnace (2018), hot water tanks (2015), renovated main floor bathroom (2014), and weeping tile with sump pump installation in the basement (2009). The property offers manageable operating costs with 2025 expenses including approximately $816 for water, $1,044 for hydro servicing the main floor, common areas and upper unit common services, and approximately $1,700 annually for Enbridge natural gas heating serving both units. Whether you're looking to offset your mortgage through rental income, expand your investment portfolio, or secure a property with future upside, this duplex offers flexibility, functionality, and long-term value. With one unit already generating income and the other available for immediate occupancy or rental, this is an excellent opportunity in today's market. Some photos virtually staged.
Insights
Condition Score
Good83/1003 documented update signals
Source: Listing age, structured features and disclosed update language; not an inspection.
Cashflow Quality
Strong98/100+$1,226/mo against the cost of owning (20% down, 4.8%, 25 yrs)
Source: Median of 24 homes with 5 bedrooms for lease in Ottawa right now. Cost of owning counts the mortgage and property tax.
Condition uses listing-record signals, not an inspection.
The home
Key facts
- Tax
- $3,995 / 2025
- MLS® number
- X13596528
- Board
- TRREB MLS®
- Property Type
- Duplex
- Days on market
- Size
- 3000-3500 sqft
- Lot Size
- 40 x 109 ft
- Listed on
- Parking
- None, 3 Parking
Property details
Property
- Property Type
- Duplex
- Style
- 2-Storey
- Community
- Castle Heights
- Municipality
- Ottawa
Building
- Size
- 3000-3500 sqft
- Construction
- Stone
Inside
- Bedrooms
- 4+1
- Bathrooms
- 2
- Bathroom Details
- 1 × 3pc Upper, 1 × 3pc Main
- Basement Type
- Unfinished
- Kitchens
- 2
Parking
- Driveway
- Private
- Garage Type
- None
- Additional Parking
- 3
- Total Parking
- 3
Utilities
- Water
- Municipal
- Cooling
- None
- Heating Type
- Forced Air
Land
- Sewer
- Sewers
- Frontage
- 40 ft
- Depth
- 109 ft
- Lot Size
- 40 x 109 ft
Additional
- Foundation
- Poured Concrete
- Roof
- Asphalt Shingle
- Fireplace
- No
- Pool
- None
- Den
- No
- Family room
- No
- Extras
- Refrigerator x2, Stove x2, Washer x2, Dryer x2
Rooms
| Room | Size | Features | Level |
|---|---|---|---|
| Primary | 3.04 × 3.35 m | — | Main |
| Dining | 2.43 × 4.29 m | — | Main |
| Kitchen | 3.45 × 4.26 m | — | Main |
| Living | 4.41 × 5.18 m | — | Main |
| Living | 4.64 × 5.18 m | — | 2nd |
| Kitchen | 2.43 × 2.94 m | — | 2nd |
| Primary | 3.35 × 3.68 m | — | 2nd |
| Br | 2.56 × 3.98 m | — | 2nd |
| Family | 4.41 × 5.18 m | — | Lower |
Listing history
Buy/sell history for 528 Guy St, Ottawa, Ontario
Sale history on this site covers the last 2 years, the window permitted under the TRREB MLS® VOW agreement.
| Date Start | Date End | List Price | Price | Event | Listing ID |
|---|---|---|---|---|---|
| Date StartN/A | N/A | $535,000 | N/A | Ext | X13596528 |
Members see the full history. Prices are hidden from signed-out visitors.
The numbers
Mortgage Calculator
Plan with the current asking price
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
- $107,000
- Total mortgage amount
- $428,000
- Total interest payment
- $304,300
- Total purchase cost
- $839,300
- Mortgage payment
- $2,441/mo
Cash Flow Analysis
If you rented this home out at 20% down
Break-even down payment
—Monthly carrying cost
$2,774- Carrying cost $2,774
- Surplus $1,226
Rental income opens at $4,000, the median asking rent of 24 comparable homes for lease in Ottawa. 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
- $7,175
- Total land transfer tax
- $7,175
- First-time buyer rebates (Ontario up to $4,000)
- −$4,000
- Total for first-time buyers
- $3,175
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 $535,000
- $2,700
- Ontario total
- $7,175
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
- 4,360 sq ft405 m²
- Street frontage
- 40 ft12.2 m
- Depth
- 109 ft33.2 m
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.
Land and environment
Public records about this location. Not part of the MLS® listing and not provided by the listing brokerage.
Water and conservation6
- Not in Rideau Valley Conservation Authority’s mapped regulated areaAt the address
- Not in the municipality’s mapped flood areaAt the address
- No mapped wetland within 120 m120 m
- 7 water-supply wells recorded within 250 mAll were drilled for domestic use; 11 test or monitoring holes also recorded. From Ontario’s well records; locations can be approximate. The records do not show how this home gets its water. Wells nearby typically go down about 6.1 m.250 m
- Groundwater recorded about 3 m below ground nearbyThe middle water level in the well records within 500 m (81 records). It changes with the season and from spot to spot.500 m
- Bedrock about 4.6 m down nearbyThe middle depth to bedrock in the well records within 500 m.500 m
Rideau Valley Conservation Authority · Municipal flood mapping · Province of Ontario open data
Planning and building activity2
- Outside the Greenbelt, Oak Ridges Moraine and Niagara Escarpment plan areasAt the address
- Nearest airport: 2.5 km2.5 km
Province of Ontario open data
Around the home2
- Transit stop within 400 mFrom the transit agency’s published stop map; the nearest is 150 m away. Routes and stops change; check the agency’s schedule.400 m
- A trail on the Ontario trail network within 1 km1 km
Municipal transit open data · 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 HYDRAULI-CHROME INC, 2.4 km away. Only facilities above the inventory’s reporting thresholds are listed.1 km
- No federal contaminated site within 1 kmThe federal inventory covers federal land only; it says nothing about provincial or private sites.1 km
Province of Ontario open data · Government of Canada open data
Power and internet3
- Electricity is distributed here by Hydro Ottawa LimitedAt 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, FibreStream, Rogers. Cable: Rogers. DSL: Bell. Fixed wireless: OmniTEC Wireless, Rogers, Storm Internet, Xplore. Mobile: Bell, Rogers, Telus, Vidéotron. 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, Rideau Valley Conservation Authorityor the record’s publisher.
Contains information licensed under the Open Government Licence – Canada. Contains information licensed under the Open Government Licence – City of Ottawa. Contains information licensed under the Open Government Licence – Ontario.
The market
Market area · filters apply to the charts below
The street
Map and tour
Transit nearby
| Station | Lines | Distance |
|---|---|---|
| St-Laurent | OC Transpo light rail: O-Train Line 1 | 1.6 km |
| Cyrville | OC Transpo light rail: O-Train Line 1 | 1.6 km |
| Tremblay | OC Transpo light rail: O-Train Line 1 | 1.8 km |
| Lees | OC Transpo light rail: O-Train Line 1 | 2.8 km |
| Lycée Claudel | OC Transpo bus rapid transit: Transitway | 3.4 km |
The nearest subway, light rail, train, bus rapid transit stations 5 km, as the crow flies. Source: OC Transpo schedule data (GTFS) from the City of Ottawa under the Open Government Licence – City of Ottawa, downloaded October 18, 2026. Contains information licensed under the Open Government Licence – City of Ottawa.
Schools nearby
| Elementary | Type | Distance | EQAO average 2024–25 |
|---|---|---|---|
| Queen Elizabeth Public SchoolOttawa-Carleton DSB | Public · grades JK–8 · French Immersion | 500 m | 47%Grade 6 average |
| Robert E. Wilson Public SchoolOttawa-Carleton DSB | Public · grades JK–6 · French Immersion | 500 m | 70%Grade 6 average |
| St Michael Elementary SchoolOttawa Catholic School Board | Catholic · grades JK–6 · French Immersion | 650 m | 70%Grade 6 average |
| École élémentaire catholique Horizon-JeunesseConseil des écoles catholiques du Centre-Est | French-language Catholic · grades JK–6 | 1.2 km | 85%Grade 6 average |
| Secondary | Type | Distance | Grade 9 math 2024–25 |
|---|---|---|---|
| Ottawa Technical Secondary SchoolOttawa-Carleton DSB | Public · grades 9–12 · French Immersion | 550 m | 23%Grade 9 math |
| École secondaire catholique de l’innovationConseil des écoles catholiques du Centre-Est | French-language Catholic · grades 9–12 | 950 m | 67%Grade 9 math |
| École secondaire catholique Samuel-GenestConseil des écoles catholiques du Centre-Est | French-language Catholic · grades 9–12 | 1.5 km | 68%Grade 9 math |
| Immaculata High SchoolOttawa Catholic School Board | Catholic · grades 9–12 · French Immersion | 3.8 km | 55%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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Sold prices in Castle Heights are shown to signed-in members.