18 Callisto Lane E
Observatory York L4C 8P6

$1,680,000
Residential Freehold beds: 4+2 baths: 6.0

Main Photo: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 1: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 2: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 3: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 4: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 5: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 6: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 7: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 8: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 9: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 10: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 11: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 12: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 13: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 14: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 15: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 16: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 17: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 18: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 19: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 20: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 21: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 22: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 23: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 24: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 25: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 26: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 27: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
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Photo 29: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 30: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 31: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 32: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 33: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 34: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 35: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Photo 36: 18 Callisto Lane E in York: Observatory House for sale (Richmond Hill)  : MLS®# N12251696
Status:
Active
Prop. Type:
Residential Freehold
MLS® Num:
N12251696
Bedrooms:
4+2
Bathrooms:
6
A Unique & Elegant wide lot Semi-Detached over 5000 total living space & Double Garage. Just like a Detached home. Beautiful landscaping Corner House In Observatory Hill. 4 Bedroom ( 2EnSite bathroom)+ Library on Ground Floor + Great Room could convert to 5th bathroom. Extra 614Sq. ft. COACH HOUSE/Separate Apartment(with full kitchen, Bathroom & Laundry) a One bedroom unit At The top of the Garage for potential Rental income provided w/Sep Entrance and a lovely side garden. Finished Basement with Two bedrooms, bright windows & Closet, living room with Full kitchen and 1 full bathroom. Top of the line Kitchen Appliance, 36"Wolf Dual Fuel Range, 6Burner Gas Stove With Over, Sub Zero 42" French Door Fridge, Asko 24' S/S Dishwasher, Sirius36" Professional Wall Mount Hood, Sub Zero 24' Beverage Centre, Water system Installed in yard. Pot Lights & Crystal chandeliers bring out the elegant and unique lay out of this limited floor plan built by the builder. Limited layout of this Semi-detached in the neighborhood. Upgrade Oversized Large Windows Inviting Lots of Natural Sunlight, Pot Lights through Out the House. Kitchen With Centre Island, Top Brand Appliance with European Style Cabinets. Patio In The Front Yard. 10"Foot Ceiling on Ground Floor, & 9"Foot Ceiling on second floor. Master bedroom has an elegant style Mounted ceiling with 10"foot Ceiling high. Double sink with Freestanding Soaking Acrylic Bathtub, Extra Large Stand Shower with upgraded shower system. Second Bedroom has a Cathedral ceiling with Large window. Third bedroom EnSite bathroom. ***Newly Interlock installed in the driveway***.
Property Type:
Residential Freehold
Property Sub Type:
Semi-Detached
Home Style:
2-Storey
Approx. Age:
0-5
Total Approx Floor Area:
3000-3500
Depth:
0'
Frontage:
32'½"
Direction Faces:
East
Bedrooms:
4+2
Bathrooms:
6.0
Water supply:
Municipal
Kitchens:
3
Bedrooms Above Grade:
4
Bedrooms Below Grade:
2
Kitchens Above Grade:
3
Rooms Above Grade:
12
Heating type:
Forced Air
Heating Fuel:
Gas
Fireplaces:
2
Foundation:
Other
Roof:
Other
Basement:
Finished
Fireplace/Stove:
Yes
Garage:
Attached
Garage Spaces:
2.0
Other Structures:
Fence - Full, Storage, Workshop
Parking Features:
Private
Parking Spaces:
2
Total Parking Spaces:
4.0
Family Room:
Yes
Pool:
None
HST Applicable To Sale Price:
Included In
Taxes:
$9,813.07 / 2024
Assessment:
$- / -
Richmond Hill
Observatory
York
Fenced Yard, Hospital, Library, Public Transit, Rec./Commun.Centre, School
Carpet Free, In-Law Capability, In-Law Suite, Separate Heating Controls, Separate Hydro Meter, Storage, Storage Area Lockers
Alarm System
Hot Water Tank by Vista $15.72/Month
36"Wolf Dual Fuel Range, 6 Burner Gas Stove With Over, Sub Zero 42" French Door Fridge, Asko 24' S/S Dishwasher, Sirius 36" Professional Wall Mount Hood, Sub Zero 24' Beverage Centre, Water system Installed in yard. interlock newly installed at the driveway , parks lots of cars.
Freezer in Basement. All furniture are for staging purposes.
Brick
Floor
Type
Size
Other
Main
Family Room
17' × 11'1"
Gas Fireplace, Large Window, Overlooks Living
Main
Kitchen
17' × 10'7"
Family Size Kitchen, Combined w/Living, Modern Kitchen
Main
Breakfast
14'9½" × 10'7"
Centre Island, Moulded Sink, Overlooks Garden
Main
Dining Room
14'1" × 11'7"
Hardwood Floor, LED Lighting, W/O To Yard
Main
Great Room
10' × 10'
Hardwood Floor, Large Window, Formal Rm
Main
Office
10' × 10'
Hardwood Floor, Large Window
Second
Primary Bedroom
17' × 12'
Large Closet, Walk-In Closet(s), Large Window
Second
Bedroom 4
11' × 10'
SE View, 4 Pc Ensuite, Closet Organizers
Second
Bedroom 3
13'5" × 11'
Cathedral Ceiling(s), Large Window, Closet Organizers
Second
Bedroom 2
10' × 10'
Large Closet, Large Window, Closet Organizers
Basement
Family Room
39'11½" × 27'2¾"
Eat-in Kitchen, Vinyl Floor, LED Lighting
Basement
Bedroom 5
16'5" × 16'5"
Window, Vinyl Floor, Closet
Basement
Bedroom
16'5" × 16'5"
Window, Vinyl Floor, Closet
Upper
Loft
Measurements not available
Large Window, Modern Kitchen, 3 Pc Bath
Special Designation:
Unknown
Sewers:
Sewer
Air Conditioning:
Central Air
Central Vacuum:
No
Seller Property Info Statement:
No
Laundry Level:
Main Level
Date Listed:
Jun 28, 2025
Original Price:
$1,680,000
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Virtual Tour

Listed by CENTURY 21 LEADING EDGE REALTY INC.
Data was last updated July 6, 2025 at 06:15 AM (UTC)
Area Statistics
Listings on market:
56
Avg list price:
$1,234,000
Min list price:
$848,000
Max list price:
$1,838,000
Avg days on market:
28
Min days on market:
1
Max days on market:
202
These statistics are generated based on the current listing's property type and located in Richmond Hill. Average values are derived using median calculations.
This website may only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate of the type being offered via the website. The data relating to real estate on this website comes in part from the MLS® Reciprocity program of the PropTx MLS®. The data is deemed reliable but is not guaranteed to be accurate.