599 Sandford Street, Newmarket, ON
Armitage, Newmarket · MLS® N13816712
About this home
In short
- Welcome to this beautifully maintained 4-bedroom detached home situated on a rare and oversized 85' x 110' lot in one of Newmarket's most prestigious and sought-after...
- The spacious primary bedroom features a newly updated 3-piece ensuite and walk-in closet.
- The fully finished basement is a standout feature, offering a self-contained 1-bedroom apartment with its own separate walk-out entrance.
- Outside, the exceptional 85' x 110' lot provides rare space and privacy, with mature landscaping and endless potential for outdoor living, entertaining, gardening, or...
- Ideally located just minutes from the 404, top-rated schools, parks, shopping, restaurants, and everyday amenities, this is a rare opportunity to own a spacious home...
Welcome to this beautifully maintained 4-bedroom detached home situated on a rare and oversized 85' x 110' lot in one of Newmarket's most prestigious and sought-after neighbourhoods. Offering an exceptional combination of space, versatility, and outdoor potential, this property is an ideal opportunity for families, multi-generational living, or investors. The main level features a spacious and functional layout with an updated eat-in kitchen offering modern finishes, ample cabinetry, and plenty of room for everyday living and entertaining. The inviting family room features a cozy fireplace, while the walk-out from the main level leads directly to a large deck and expansive backyard, creating the perfect indoor-outdoor setting for summer entertaining and family enjoyment. Convenient garage access adds everyday practicality. Upstairs, four generously sized bedrooms provide plenty of space for a growing family. The spacious primary bedroom features a newly updated 3-piece ensuite and walk-in closet. The fully finished basement is a standout feature, offering a self-contained 1-bedroom apartment with its own separate walk-out entrance. Ideal for extended family, guests, a nanny suite, or potential rental income, this flexible space adds tremendous value and versatility to the home. Outside, the exceptional 85' x 110' lot provides rare space and privacy, with mature landscaping and endless potential for outdoor living, entertaining, gardening, or future possibilities. Ideally located just minutes from the 404, top-rated schools, parks, shopping, restaurants, and everyday amenities, this is a rare opportunity to own a spacious home on an oversized lot with both a main-floor walk-out and a separate walk-out basement apartment in one of Newmarket's finest communities.
Key facts
- Property type
- Detached, 2-Storey
- MLS®
- N13816712
- Bedrooms
- 4+1 (5 total)
- Bathrooms
- 4 (1 half)
- Size
- 2000-2500 sq ft
- Lot
- 84.73 × 110.55 ft
- Cross streets
- Sandford St / Mulock Dr
- Parking
- 2 garage · 9 parking (attached)
- Driveway
- Private
- Basement
- Apartment, Finished with Walk-Out
- Kitchens
- 2 (1 + 1)
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick
- Foundation
- Unknown
- Roof
- Asphalt Shingle
- Sewer
- Sewer
- Property tax
- $6,366 / 2025
- Days on market
- 27
- Listing brokerage
- CENTURY 21 REGAL REALTY INC.
Rooms
3 pc ensuite · walk-in closet(s) · bay window
eat-in kitchen · quartz counter · stainless steel appl
Access To Garage
Gas Fireplace
Bay Window
Listed at $1,245,000, about 2% above our estimate of $1.22M (homes like it typically land between $1.14M and $1.28M).
Why $1.22M. The typical detached home sold in Armitage over the past year went for about $1.24M (21 sales). What sets this one apart:
- ▲ Raises itThe listing describes it as fully renovated or newly built.
- ▼ Lowers it slightlyIt is 2,000 to 2,500 sq ft; the typical home sold here is 2,500 to 3,000.
Total price vs nearby homes. Fair value about $1.22M, learned from recent GTA sales.
The market behind the math:
About 6 months of inventory: 6 detached homes for sale in the area against 3 closings in the last 90 days. Under two months favours sellers, over four favours buyers.
Price per square foot: this home lists at $553/sqft against an area asking average of $470/sqft.
- Walk-out basement apartment features. A finished 1 bed walk-out basement apartment with a second kitchen. A self-contained space for extended family, guests or potential income. Basements do rent in Armitage: 11 of the 46 detached leases here lately were basement units, around $1,990 a month. That makes the suite real income. Second-suite retrofit status is not verified. A buyer intending to rent should confirm requirements with the Town of Newmarket.
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 14 most comparable recent sales on their own, adjusted for size, beds, baths and lot, point to about $1.15M. Condition and finishes remain an in-person call.
What the listing highlights2 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
- Finished basement: added living space, worth checking ceiling height and that the work was permitted. Value driver
Based on 14 comparable homes that sold in Armitage over the past two years, from 31 closings there.
The closest active listings by size, beds, and price, so you can see what this home is up against.
Per square foot, these ask about $476/sqft; this home lists at $553/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 Newmarket: $1.04M in September 2026, up 1% from a year ago, on 532 closings in 12 months.
Line: median sold price, each month averaged with its neighbours and weighted by closings. Bars: closings that month. Newmarket as a whole: the neighbourhood alone has too few closings for a line of its own.
Month by month
| Month | Median sold | Closings |
|---|---|---|
| October 2025 | $1.08M | 46 |
| November 2025 | $1.05M | 34 |
| December 2025 | $1.10M | 29 |
| January 2026 | $1.03M | 27 |
| February 2026 | $1.08M | 31 |
| March 2026 | $1.10M | 41 |
| April 2026 | $1.08M | 51 |
| May 2026 | $1.16M | 66 |
| June 2026 | $1.13M | 60 |
| July 2026 | $1.06M | 54 |
| August 2026 | $1.09M | 55 |
| September 2026 | $1.04M | 38 |
Neighbourhood & location
Armitage, Newmarket, 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). Newmarket.
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
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 $996,000 · 4.49% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $5,507
- Property tax
- $531
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $6,038
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $21,375
- Estimated closing costs
- $21,375
Plus your down payment of $249,000. 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
- $330,423
- Principal paid down
- $121,693
- Interest paid
- $208,730
- Balance remaining
- $874,307
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 Armitage (11 of 46 recent detached leases were basement units, around $1,990 a month). The figure above is the whole house on one lease; rented as two units, the suite alone brings about $1,990 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 10 whole-home leases in Armitage signed at a median of $3,844 a month; adjusted to this home for size, beds and baths, and for where rents stood the month each signed, that is $3,492. 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 CENTURY 21 REGAL REALTY INC.. MLS®/PropTx.