187 Steam Whistle Drive, Whitchurch-Stouffville, ON
Stouffville, Whitchurch-Stouffville · MLS® N14086876
About this home
In short
- A truly one-of-a-kind executive residence designed for luxurious everyday living, entertaining and multigenerational living, featuring a private elevator connecting...
- Soaring 10-ft. main-floor ceilings, 9-ft. ceilings upstairs and an impressive 9-ft. finished walkout basement, bring your golf simulator.
- The showpiece chef's kitchen features Wolf and Sub-Zero appliances, porcelain countertops and an oversized island.
- Four bedrooms and three upper-level bathrooms include heated floors.
- The luxurious primary retreat features a custom walk-in closet and spa-inspired ensuite with soaker tub, glass shower and dramatic double-sided gas fireplace.
A truly one-of-a-kind executive residence designed for luxurious everyday living, entertaining and multigenerational living, featuring a private elevator connecting all three levels, backing onto protected forest and offering over 4,500 sq. ft. of beautifully finished living space. Professionally decorated by Kimmberly Capone Interior Design and enhanced with over $750,000 in upgrades, as reported by the seller, this exceptional home offers an extraordinary combination of luxury, privacy and thoughtful design. Upgraded soundproofing and solid-core doors enhance privacy throughout. Soaring 10-ft. main-floor ceilings, 9-ft. ceilings upstairs and an impressive 9-ft. finished walkout basement, bring your golf simulator! Oversized windows, 8-inch-wide oak flooring, designer lighting and extensive custom millwork featuring cornice mouldings, coffered and waffle ceilings showcase exceptional attention to detail. The showpiece chef's kitchen features Wolf and Sub-Zero appliances, porcelain countertops and an oversized island. The adjoining family room is anchored by a striking stone-surround gas fireplace. Four bedrooms and three upper-level bathrooms include heated floors. The luxurious primary retreat features a custom walk-in closet and spa-inspired ensuite with soaker tub, glass shower and dramatic double-sided gas fireplace. Outdoor living overlooks the protected forest with a covered concrete loggia, frameless glass railing and two electric heaters. The finished walkout opens to a covered patio and fully fenced backyard. An oversized double garage and security cameras complete the property. Ideally located near new Catholic elementary and high schools, parks, tennis and pickleball courts, and a splash pad. A rare opportunity where luxury, privacy, thoughtful design and functionality come together.
Key facts
- Property type
- Detached, 2-Storey
- MLS®
- N14086876
- Bedrooms
- 4
- Bathrooms
- 4 (1 half)
- Size
- 3500-5000 sq ft
- Lot
- 46.68 × 123.75 ft
- Cross streets
- Ninth Line & Millard
- Parking
- 2 garage · 6 parking (attached)
- Driveway
- Private Double
- Basement
- Finished with Walk-Out, Separate Entrance
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick, Shingle
- Foundation
- Concrete, Poured Concrete
- Roof
- Asphalt Shingle
- Sewer
- Sewer
- Property tax
- $8,660 / 2025
- Days on market
- 3
- Listing brokerage
- GALLO REAL ESTATE LTD.
Rooms
b/i appliances · centre island
5 pc ensuite · walk-in closet(s) · hardwood floor
hardwood floor · coffered ceiling(s)
semi ensuite · hardwood floor · irregular room
semi ensuite · hardwood floor · b/i closet
4 pc ensuite · hardwood floor · b/i closet
hardwood floor · large window · coffered ceiling(s)
Hardwood Floor
hardwood floor · crown moulding
Stainless Steel Sink
hardwood floor · coffered ceiling(s) · fireplace
Listed at $2,595,000. Going by how homes in Stouffville have actually closed against their asking prices (about 98%, 57 local closings in 90 days), the likely sale price is near $2.53M, if it sells. A realistic range is $2.37M to $2.85M.
Independent value check: no figure for this home. Going only by the sales record, our model lands more than 25% below the ask. At that distance an automated figure has rarely been close to the eventual sale price, so we are not printing one. The usual reason is something the record cannot show: a rebuild, a second unit, or a lot or setting unlike the homes around it.
Total price vs nearby homes. Likely closing about $2.53M, from 57 recent closings in this pocket.
The market behind the math:
About 0.3 months of inventory: 6 detached homes for sale in the area against 57 closings in the last 90 days. Under two months favours sellers, over four favours buyers.
Price per square foot: this home lists at $611/sqft against an area asking average of $513/sqft.
- Park / green-space backing. The listing says this home backs onto or abuts a park or green space. That privacy is priced into the comparison. What is actually behind the fence, and how the lot sits against it, is my in-person call.
- Walk-out basement. Extra light, usable space, and income potential, so the estimate is a conservative floor for it.
How this estimate is builtthe short version
This figure comes from a model built on about 44,000 recent GTA sales. It weighs this home’s tax assessment, size, age, location and features against what homes like it actually sold for, including sales in this neighbourhood.
It never sees the asking price. The 57 most comparable recent sales on their own, adjusted for size, beds, baths and lot, point to about $1.48M. Condition and finishes remain an in-person call.
What the listing highlights5 points to weigh
Claims from the listing, worth confirming in person. I can book you a private showing.
- Walk-out basement: natural light and strong in-law or income potential. Income potential
- Upscale kitchen: a genuine value driver, verify the appliances, stone, and finishes in person. Value driver
- Heated floors: comfort and a premium-finish signal. Lifestyle
- Tall ceilings: they transform how a home feels, worth confirming the actual heights room to room. Worth verifying
- Primary suite: a key comfort and resale feature. Lifestyle
Read this with carewhy it’s an estimate, not an appraisal
The listing states size as a wide range, so the size adjustment is approximate and this estimate is a rough read. I can confirm exact square footage to tighten it.
Based on 57 comparable homes that sold in Stouffville over the past two years, from 483 closings there.
For sale
For sale
For sale
For sale
For sale
For saleNothing closely matching this home is listed nearby right now, so these are the nearest detached listings on the market. Homes like this one have recently closed around $1.57M, which is where my estimate comes from.
Per square foot, these ask about $517/sqft; this home lists at $611/sqft. Size is part of the price story, not just the sticker.
The 5 closest of 6 active listings nearby.
See all comparable homesSold price trend
Median sold price for detached homes in Stouffville: $1.17M in September 2026, down 1% from a year ago, on 249 closings in 12 months.
Line: median sold price, each month averaged with its neighbours and weighted by closings. Bars: closings that month.
Month by month
| Month | Median sold | Closings |
|---|---|---|
| October 2025 | $1.26M | 31 |
| November 2025 | $1.15M | 32 |
| December 2025 | $1.23M | 14 |
| January 2026 | $1.28M | 12 |
| February 2026 | $1.21M | 13 |
| March 2026 | $1.29M | 15 |
| April 2026 | $1.19M | 18 |
| May 2026 | $1.08M | 22 |
| June 2026 | $1.20M | 23 |
| July 2026 | $1.13M | 26 |
| August 2026 | $1.23M | 22 |
| September 2026 | $1.17M | 21 |
Neighbourhood & location
Stouffville, Whitchurch-Stouffville, ON
Enter a workplace or destination and we’ll show the door-to-door time by car, transit and bike.
How asking prices compare in the closest areas to this home. Longer bars mean a pricier market.
Typical asking price of active listings of the same type, per area (outliers removed). Whitchurch-Stouffville.
Get the full neighbourhood report (schools, parks, transit & safety) →
Affordability & Mortgage
Income needed assumes a ~32% GDS ratio; weekly is mortgage principal & interest only. Price ÷ income is the home price over the income needed. Fixed reference assumptions so listings compare on equal footing, not a lending decision.
Calculate and customize your mortgage and other expenses
Adjust the down payment, rate, and amortization, and add property tax, condo fees, and heating to see your true monthly cost.
Your numbers
Homes over $1.5M can't be insured, so 20% down or more is required.
Conventional (20%+ down). Best insured 5-year fixed 4.34% via Ratehub.ca (as of October 19, 2026); conventional rates run a little higher.
Mortgage amount $2,076,000 · 4.49% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $11,479
- Property tax
- $722
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $12,200
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $51,350
- Estimated closing costs
- $51,350
Plus your down payment of $519,000. Legal fees, title insurance, and adjustments are extra and vary by deal.
Mortgage stress test
Lenders qualify you at the greater of your rate plus 2% or 5.25%. You do not pay this rate. It just shows you could still handle payments if rates rose, so aim to stay comfortable at this higher number.
Over the full 25 years
At the end of your 5-year term
- Total paid over the term
- $688,714
- Principal paid down
- $253,649
- Interest paid
- $435,065
- Balance remaining
- $1,822,351
Talk to Team Asgarian about your options
Rates and programs change often. We will connect you with a trusted mortgage professional and build a plan that fits your budget and goals.
Estimates only, not a mortgage quote or pre-approval. Figures use Canadian semi-annual compounding, current minimum down-payment rules, CMHC premium tiers, and Ontario (plus Toronto, when selected) land transfer tax. Actual rates, taxes, insurance, and closing costs vary by lender and property. Confirm every number with your mortgage professional.
Investor snapshot
The suite is real income here: basements rent in Stouffville (37 of 228 recent detached leases were basement units, around $1,800 a month). The figure above is the whole house on one lease; rented as two units, the suite alone brings about $1,800 a month on top of the upper floors. Permitted use is worth confirming with the city.
Thinking of this home as an investment? We will pull real comparable rents and run the full numbers with you.
Talk about the numbersThe last 20 whole-home leases in Stouffville signed at a median of $4,140 a month; adjusted to this home for size, beds and baths, and for where rents stood the month each signed, that is $4,523. The gross yield above is on the asking price, before taxes and upkeep; the cap rate is after them. A finished basement or second suite can push real rent above it. Taxes, fees, and vacancy vary by property, and cap rate is before financing.
Helpful resources
All information deemed reliable but not guaranteed. For personal, non-commercial use only. Listing courtesy of GALLO REAL ESTATE LTD.. MLS®/PropTx.