18 Castille Crescent, Georgina, ON
Keswick South, Georgina · MLS® N13813510
About this home
In short
- Welcome to 18 Castille Crescent, where space, flexibility and location come together in the heart of Keswick South.
- This beautifully maintained 3-bedroom detached home offers a versatile multi-level layout with plenty of room to live, work, entertain and grow.
- The beautiful living room with hardwood floors and a large picture window offers natural light plus a spacious dining room overlooking the backyard.
- The modern kitchen features quartz countertops and flows into a sun-filled breakfast area with a walkout to the private backyard-perfect for morning coffee, summer...
- Upstairs, you'll find three generous bedrooms and a 4-piece bathroom.
Welcome to 18 Castille Crescent, where space, flexibility and location come together in the heart of Keswick South! This beautifully maintained 3-bedroom detached home offers a versatile multi-level layout with plenty of room to live, work, entertain and grow. Step inside to a bright foyer with convenient interior access to the triple-car garage. The beautiful living room with hardwood floors and a large picture window offers natural light plus a spacious dining room overlooking the backyard. The modern kitchen features quartz countertops and flows into a sun-filled breakfast area with a walkout to the private backyard-perfect for morning coffee, summer BBQs and entertaining family and friends. Upstairs, you'll find three generous bedrooms and a 4-piece bathroom. Need even more space? The finished lower level delivers with a large living room, separate recreation room, second full bathroom and dedicated laundry-ideal for a home office, gym, playroom, guest space or cozy movie nights. Outside, enjoy a great-sized backyard, triple-car garage and private double driveway. Located in an established, family-friendly neighbourhood just minutes from Lake Simcoe, the beach, parks, schools, shopping, restaurants and Highway 404 for an easy commute. Whether you're looking for your first detached home, more room for a growing household or simply a home with flexible spaces that can evolve with you, 18 Castille Crescent is ready to welcome you home.
Key facts
- Property type
- Detached, Sidesplit 3
- MLS®
- N13813510
- Bedrooms
- 3
- Bathrooms
- 2
- Size
- 1100-1500 sq ft
- Lot
- 49.23 × 109.96 ft
- Cross streets
- Woodbine Ave & Riverglen Drive
- Parking
- 3 garage · 7 parking (attached)
- Driveway
- Private Double, Tandem
- Basement
- Finished, Full
- Heating
- Forced Air
- A/C
- Central Air
- Exterior
- Brick
- Foundation
- Poured Concrete
- Roof
- Asphalt Shingle
- Sewer
- Sewer
- Property tax
- $4,749 / 2026
- Days on market
- 3
- Listing brokerage
- RE/MAX REALTRON REALTY INC.
Rooms
ceramic floor · closet · w/o to garage
french doors · separate room · closet
gas fireplace · large window · b/i shelves
ceramic floor · laundry sink · window
ceramic floor · stainless steel appl · quartz counter
laminate · closet · semi ensuite
hardwood floor · large window · overlooks backyard
eat-in kitchen · bow window · w/o to deck
laminate · closet · wainscoting
ceramic floor · 4 pc bath · window
laminate · closet · large window
ceramic floor · 4 pc bath
hardwood floor · picture window · overlooks frontyard
Listed at $699,999. Going by how homes in Keswick South have actually closed against their asking prices (about 97%, 44 local closings in 90 days), the likely sale price is near $676K, if it sells. A realistic range is $633K to $762K.
Independent value check: $716K. Without looking at the asking price, our model values the home itself in line with the ask (homes like it typically land between $671K and $751K).
Why $716K. The typical detached home sold in Keswick South over the past year went for about $800K (168 sales). What sets this one apart:
- ▼ Lowers itIt is 1,100 to 1,500 sq ft; the typical home sold here is 1,500 to 2,000.
- ▼ Lowers it3 bedrooms and 2 baths, against 3+1 and 3 typically.
- ▲ Raises it3 garage and 7 total parking spaces, against 2 and 5 typically.
- ▼ Lowers it slightlyIts tax bill, which follows the city's own assessment, is $4,749 a year; the typical home sold here pays about $5,000.
Total price vs nearby homes. Likely closing about $676K, from 44 recent closings in this pocket.
The market behind the math:
About 4.2 months of inventory: 62 detached homes for sale in the area against 44 closings in the last 90 days. Under two months favours sellers, over four favours buyers.
Price per square foot: this home lists at $538/sqft against an area asking average of $565/sqft.
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 44 most comparable recent sales on their own, adjusted for size, beds, baths and lot, point to about $683K. 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.
- Premium lot / gardens: lot size and privacy hold value and cannot be changed, verify frontage, depth, and any easements. Value driver
- Hardwood floors: quality hardwood is durable and broadly desirable. Lifestyle
Schools & getting aroundcatchment and transit
The assigned public school is Keswick HS. EQAO is only one input, and families here also look at French Immersion, boundary, and private options, the full breakdown is below.
Read this with carewhy it’s an estimate, not an appraisal
There were not many closely comparable homes right in Keswick South, so I widened the search to the surrounding area.
Based on 44 comparable homes that sold in Keswick South over the past two years, from 359 closings there.
For sale
For sale
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 $716K, which is where my estimate comes from.
Per square foot, these ask about $541/sqft; this home lists at $538/sqft. Size is part of the price story, not just the sticker.
The 5 closest of 8 active listings nearby.
See all comparable homesNeighbourhood & location
Keswick South, Georgina, 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). Georgina.
Get the full neighbourhood report (schools, parks, transit & safety) →
The public and Catholic schools this address is zoned for, with EQAO results (the share of students meeting Ontario's provincial standard).
School attendance boundaries and EQAO results are Ontario government data and can change. Confirm the current catchment with the school board before relying on it.
Also nearby: 3 more schools within 2.5 km
Not the assigned catchment: schools a family here could reach, with EQAO results where published.
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 September 25, 2026); conventional rates run a little higher.
Mortgage amount $559,999 · 4.49% over 25 years
Total monthly cost
- Mortgage payment (monthly equivalent)
- $3,096
- Property tax
- $396
- Condo / maintenance fees
- $0
- Heating
- $0
- Estimated monthly cost
- $3,492
Add your own property tax, condo fees, and heating on the left for a sharper total.
One-time closing costs
- Ontario land transfer tax
- $10,475
- Estimated closing costs
- $10,475
Plus your down payment of $140,000. 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
- $185,780
- Principal paid down
- $68,422
- Interest paid
- $117,358
- Balance remaining
- $491,578
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 numbersThe last 63 whole-home leases in Keswick South signed at a median of $2,917 a month; adjusted to this home for size, beds and baths, and for where rents stood the month each signed, that is $2,781. 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 RE/MAX REALTRON REALTY INC.. MLS®/PropTx.