403 Walnut St W is a 5-bedroom, 3-bathroom duplex in Whitby, listed for $1,099,000. It has 1500-2000 sq ft of living space.
1With seven bedrooms (one currently being used as additional family room) and three bathrooms, split across three separate living areas, this home offers ample space and tons of flexibility.
2Easily walkable area close to schools, stores, public transit, school bus routes, and amenities.
3Fully fenced backyard with patio, lots of parking, and many upgrades throughout the house.
Legal duplex with third unit ready to go...owner occupied! Whether you're looking for an investment or a family home with extra income potential, this large home in a quiet, family-friendly neighbourhood of Whitby ticks all the boxes. With seven bedrooms (one currently being used as additional family room) and three bathrooms, split across three separate living areas, this home offers ample space and tons of flexibility. Easily walkable area close to schools, stores, public transit, school bus routes, and amenities. Just minutes to the 401 and 407. Fully fenced backyard with patio, lots of parking, and many upgrades throughout the house. New since 2022: composite front deck, hot water heater, main floor and upstairs windows, A/C, bathrooms refinished, upgraded insulation, and multiple appliances. This lovingly maintained house is move-in ready for its new family!
5 bedrooms, 3 bathrooms, about 1,500 sq ft, works out to roughly $733 per square foot. Chat with Zara if you'd like a deeper read on whether this duplex fits your budget and timing.
Inside 403 Walnut St W
Every detail from the listing, in one place.
Type
Duplex
Style
1 1/2 Storey
Living space
1500-2000 sq ftas stated on the listing
Parking
5 spaces
Basement
Finished, Full
Features & systems
Parking & garage
Parking spaces
5
Interior
Basement
Finished · Full
Lot & land
Lot size (sqft)
0
Listing & possession
Property style
1 1/2 Storey
Property class
Duplex
403 Walnut St W Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® E14121096$1,099,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 403 Walnut St W Compares to the Whitby Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
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
$5,399
/mo
based on the purchase price of $1,099,000
$219,800 cash
$879,200 financed
$740,517 total interest
Principal54%$879,200
Interest46%$740,517
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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Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Keep looking near 403 Walnut St W
Homes for sale in Whitby
Every active Whitby MLS® listing, updated all day.
Average days on market26Homes sold in about 26 days on average.
Sale-to-list ratio98.9%On average, homes sold below asking.
Active listings516Homes for sale here right now.
Median vs prior 90 days0.0%Compared with Apr 30 – Jul 29, 2026.
Based on 599 sales from Jul 29 – Oct 27, 2026 (441 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 403 Walnut St W
How much is 403 Walnut St W listed for?
403 Walnut St W is listed at $1,099,000 (MLS® E14121096). Summitly updates the price as soon as the MLS® record changes.
Is $1,099,000 a good price for 403 Walnut St W?
Summitly rates it Well Above Market: the asking price is 15% or more above Zara's estimate, an estimate built from recent sales in Whitby. 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 403 Walnut St W changed?
No — 403 Walnut St W is still listed at its original asking price of $1,099,000.
How many bedrooms and bathrooms does 403 Walnut St W have?
403 Walnut St W has 5 bedrooms and 3 bathrooms, with about 1,500–2,000 square feet of living space. It is a duplex in Whitby.
How much would the monthly mortgage be on 403 Walnut St W?
About $5,399 a month — principal and interest on $1,099,000 with 20% down ($219,800), 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 403 Walnut St W compare with other homes in Whitby?
Its asking price of $1,099,000 is about 26% above the median sold price in Whitby over the last 90 days, $875,000, across 599 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 403 Walnut St W been sold before?
Summitly has no earlier MLS® sale or lease of 403 Walnut St W on record from the last two years. Older records aren't shown under TRREB rules.
Where is 403 Walnut St W?
403 Walnut St W is in Whitby, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 403 Walnut St W been on the market?
403 Walnut St W was listed today (October 27, 2026).
What is the price per square foot of 403 Walnut St W?
About $550 to $733 per square foot: the asking price of $1,099,000 over the 1,500–2,000 sq ft the listing gives as its size range.
Does 403 Walnut St W have parking or a garage?
Yes — the listing gives 5 parking spaces.
Does 403 Walnut St W have a basement, and is it finished?
The listing describes the basement as: Finished, Full.
