669 Kingsmere Avenue, Newmarket, ON
Stonehaven-Wyndham, Newmarket · MLS® N13821330
About this home
In short
- Welcome To Stonehaven Estates.
- Impeccably Maintained, This Executive Home Boasts Over 3500 Sq.
- Ft. & With A Functional & Family-Friendly Layout Featuring Gleaming Hardwood Floors, Formal Living & Dining Rooms & Convenient Main Floor Office.
- Oversized Eat-In Kitchen With Walk-Out To An Expansive, Private Backyard That Feels Like A Peaceful Escape With Mature Trees, Thoughtful Landscaping, Feature Pond...
- Beautifully Finished Basement With Bedroom, 3-Piece Bathroom, Recreation Room With Fireplace, Game Room & Ample Storage.
Welcome To Stonehaven Estates! Grand & Gracious, This Established Stonehaven Residence Offers The Space, Warmth & Presence Of A Traditional Family Home In One Of The Most Desirable Neighbourhoods In Newmarket. Impeccably Maintained, This Executive Home Boasts Over 3500 Sq. Ft. & With A Functional & Family-Friendly Layout Featuring Gleaming Hardwood Floors, Formal Living & Dining Rooms & Convenient Main Floor Office. Oversized Eat-In Kitchen With Walk-Out To An Expansive, Private Backyard That Feels Like A Peaceful Escape With Mature Trees, Thoughtful Landscaping, Feature Pond, Multi-Level Deck & 8 Person Hot Tub. Spacious Bedrooms Including A Primary Suite With Double Door Entry, His & Hers Closets, Additional Walk-In Closet & Updated 5-Piece Ensuite Bath With Soaker Tub. Beautifully Finished Basement With Bedroom, 3-Piece Bathroom, Recreation Room With Fireplace, Game Room & Ample Storage. With Generous Living Space, A Family-Focused Layout & Room To Grow, This Is A Rare Opportunity To Put Down Roots In One Of Newmarket's Most Prestigious Neighbourhoods - Your Next Chapter Starts Here!
Key facts
- Property type
- Detached, 2-Storey
- MLS®
- N13821330
- Bedrooms
- 4+1 (5 total)
- Bathrooms
- 4 (1 half)
- Size
- 3500-5000 sq ft
- Lot
- 71.11 × 158.31 ft
- Cross streets
- Stonehaven/Kingsmere
- Parking
- 2 garage · 6 parking (attached)
- Basement
- Finished
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick
- Foundation
- Concrete
- Roof
- Shingles
- Sewer
- Sewer
- Property tax
- $9,310 / 2026
- Days on market
- 26
- Listing brokerage
- RE/MAX HALLMARK YORK GROUP REALTY LTD.
Rooms
tile floor · stainless steel appl · breakfast bar
french doors · hardwood floor
tile floor · w/o to deck
hardwood floor · electric fireplace
laminate · french doors
hardwood floor · closet
hardwood floor · closet
laminate · gas fireplace · pot lights
hardwood floor · gas fireplace
hardwood floor · combined w/living
hardwood floor · walk-in closet(s) · 5 pc ensuite
Laminate
hardwood floor · closet
laminate · window · closet
No automatic estimate is shown here: there are not enough closely comparable recent sales nearby to support one.
Considering this property? Request a written price readNeighbourhood & location
Stonehaven-Wyndham, Newmarket, ON
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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 20, 2026); conventional rates run a little higher.
Mortgage amount $1,332,000 · 4.49% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $7,365
- Property tax
- $776
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $8,141
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $29,775
- Estimated closing costs
- $29,775
Plus your down payment of $333,000. 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
- $441,891
- Principal paid down
- $162,746
- Interest paid
- $279,146
- Balance remaining
- $1,169,254
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
Thinking of this home as an investment? We will pull real comparable rents and run the full numbers with you.
Talk about the numbersEstimates only. Rent is modelled on above-grade size and local norms, so a finished basement or second suite (a separate entrance often means one) can push real rent well above this. Taxes, fees, and vacancy vary by property, and cap rate is before financing. A starting point, not a final number, let us run the real ones with you.
Helpful resources
All information deemed reliable but not guaranteed. For personal, non-commercial use only. Listing courtesy of RE/MAX HALLMARK YORK GROUP REALTY LTD.. MLS®/PropTx.