Live, invest, and grow your equity all under one roof! The sellers extensively upgraded and renovated this property. This versatile duplex presents an outstanding opportunity for homeowners, investors, and those looking to build long-term wealth through real estate. Live in one unit while generating rental income from the other to help offset your mortgage or maximize cash flow by renting out both units. The main floor features 2 bedrooms, a spacious living area, and a functional kitchen, while the upper unit has been recently renovated with 3 bedrooms, a kitchen, a bathroom, fresh paint, new flooring, and updated bathroom and kitchen range hood vents, offering a modern and comfortable living space. Both units share a convenient common laundry room. This property provides excellent flexibility for a variety of investment strategies, including owner-occupancy with supplemental income, multi-generational living, or a fully tenanted investment property. The large lot offers ample parking, a highly sought-after feature for tenants and visitors. Adding to its appeal is the potential for future multiplex development (buyer to complete their own due diligence regarding zoning and development possibilities), making this not only an income-producing asset today but also a property with exciting long-term upside potential. Situated conveniently close to shopping, restaurants, parks, schools, public transit, and major highways, with Western University just approximately 10 minutes away, this location offers strong rental appeal and convenient access to everyday amenities. Whether you're looking to generate immediate rental income, offset homeownership costs, expand your real estate portfolio, or explore future redevelopment opportunities, this property delivers exceptional value and versatility.
5 bedrooms, 2 bathrooms, about 1,500 sq ft, works out to roughly $300 per square foot. Chat with Zara if you'd like a deeper read on whether this duplex fits your budget and timing.Ask Zara a follow-up
Inside 307 Grey St
Every detail from the listing, in one place.
Type
Duplex
Style
2-Storey
Living space
1500-2000 sq ftas stated on the listing
Parking
4 spaces
Basement
Crawl Space, Unfinished
Features & systems
Parking & garage
Parking spaces
4
Interior
Basement
Crawl Space · Unfinished
Lot & land
Lot size (sqft)
4702.5
Listing & possession
Property style
2-Storey
Property class
Duplex
307 Grey St Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X13883672$450,000
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 307 Grey St Compares to the London 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
$2,211
/mo
based on the purchase price of $450,000
$90,000 cash
$360,000 financed
$303,214 total interest
Principal54%$360,000
Interest46%$303,214
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.
Similar homes for sale nearby in London
Other 4–6 bed homes for sale in London around $450K.
Average days on market38Homes sold in about 38 days on average.
Sale-to-list ratio97.4%On average, homes sold below asking.
Active listings2,471Homes for sale here right now.
Median vs prior 90 days−0.4%Compared with Apr 13 – Jul 12, 2026: prices down.
Based on 1,851 sales from Jul 12 – Oct 10, 2026 (1,390 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 307 Grey St
How much is 307 Grey St listed for?
307 Grey St is listed at $450,000 (MLS® X13883672). Summitly updates the price as soon as the MLS® record changes.
Is $450,000 a good price for 307 Grey St?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in London. 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 307 Grey St changed?
No — 307 Grey St is still listed at its original asking price of $450,000.
How many bedrooms and bathrooms does 307 Grey St have?
307 Grey St has 5 bedrooms and 2 bathrooms, with about 1,500–2,000 square feet of living space. It is a duplex in London.
How much would the monthly mortgage be on 307 Grey St?
About $2,211 a month — principal and interest on $450,000 with 20% down ($90,000), 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 307 Grey St compare with other homes in London?
Its asking price of $450,000 is about 20% below the median sold price in London over the last 90 days, $562,500, across 1,851 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 307 Grey St been sold before?
Summitly has no earlier MLS® sale or lease of 307 Grey St on record from the last two years. Older records aren't shown under TRREB rules.
Where is 307 Grey St?
307 Grey St is in London, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 307 Grey St been on the market?
1 day — 307 Grey St was listed on October 9, 2026.
What is the price per square foot of 307 Grey St?
About $225 to $300 per square foot: the asking price of $450,000 over the 1,500–2,000 sq ft the listing gives as its size range.
Does 307 Grey St have parking or a garage?
Yes — the listing gives 4 parking spaces.
Does 307 Grey St have a basement, and is it finished?
The listing describes the basement as: Crawl Space, Unfinished.