This architectural masterpiece offers 7,000 sq. ft. of luxurious living space with 4+2 bedrooms, 6 bathrooms, an incredible resort-style backyard oasis, and a fully finished basement with separate entrance. Set on an 85 x 135 ft. lot in a mature Ancaster neighbourhood, just one minute to highway access and all Power Centre amenities, this dream home impresses with striking curb appeal, professional landscaping, and an oversized triple garage with 14 ft. ceilings and two car lifts. The grand foyer with a soaring 21 ft. ceiling and curved staircase opens to a sophisticated interior featuring bold millwork, expansive porcelain, and wide-plank hardwood all illuminated by massive windows allowing plenty of natural light. The main level boasts formal living and dining rooms with 12 ft. ceilings, a private office, powder room, mudroom, and a gourmet eat-in kitchen with top-tier appliances. A 4-season sunroom with radiant in-floor heating and a family room with 11 ft. ceiling and stone fireplace create the perfect entertaining spaces. Upstairs, the sensational primary suite includes custom built-ins, spa- inspired 5-piece bath, private balcony, walk-in closet, and a custom dressing room fit for any wardrobe. Three additional bedrooms, all with ensuite baths (heated floors), and bedroom-level laundry complete the upper level. The finished lower level offers a recreation area, home theatre, 2 bedrooms, full bath, second laundry, and kitchenette-ideal for family enjoyment or a multigenerational in-law suite. Step outside to a private resort-style retreat with heated saltwater pool (waterfalls, lights, fire features), sunken hot tub, outdoor kitchen with pizza oven, extensive hardscaping, artificial turf, storage shed, and an elite K-Array sound system. Upgrades include Control4 automation, integrated security with cameras, whole-home sound, and dual furnaces, A/Cs, and HRVs for comfort and efficiency. A rare opportunity to own one of Ancaster's most extraordinary residences!
New construction
C$3,495,000
100 Seneca Dr, Ancaster, ON L9G 3B8
6beds
4,800sqft
Single Family Residence, Residential
Built in 2019
0.26 Acres Lot
$-- Zestimate®
C$728/sqft
C$-- HOA
What's special
Striking curb appealProfessional landscapingBold millworkExpansive porcelainWide-plank hardwoodPrivate officePowder room
- 10 days
- 29
- 4
Zillow last checked:
Listing updated:
Listed by:
Kevin Roger Girard, Salesperson,
Royal LePage State Realty Inc.,
Tina Girard, Salesperson,
Royal LePage State Realty Inc.
Source: ITSO,MLS®#: 40867345Originating MLS®#: Cornerstone Association of REALTORS®
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 6
- Full bathrooms: 5
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Kitchen
- Level: Main
Heating
- Forced Air, Natural Gas
Cooling
- Central Air
Appliances
- Included: Bar Fridge, Water Heater Owned
- Laundry: In-Suite, Laundry Room, Lower Level, Multiple Locations, Sink, Upper Level
Features
- Auto Garage Door Remote(s), Built-In Appliances, Central Vacuum, Floor Drains, In-law Capability, In-Law Floorplan, Wet Bar, Other
- Basement: Separate Entrance,Walk-Up Access,Full,Finished,Sump Pump
- Number of fireplaces: 2
- Fireplace features: Family Room, Gas, Recreation Room
Interior area
- Total structure area: 7,000
- Total interior livable area: 4,800 sqft
- Finished area above ground: 4,800
- Finished area below ground: 2,200
Video & virtual tour
Property
Parking
- Total spaces: 9
- Parking features: Attached Garage, Asphalt, Private Drive Triple+ Wide
- Attached garage spaces: 3
- Uncovered spaces: 6
Features
- Stories: 2
- Patio & porch: Deck, Patio, Porch
- Exterior features: Built-in Barbecue, Landscape Lighting, Landscaped, Lawn Sprinkler System, Lighting, Privacy
- Has private pool: Yes
- Pool features: In Ground, Salt Water
- Has spa: Yes
- Spa features: Heated, Hot Tub
- Fencing: Full
- Has view: Yes
- View description: Pool
- Frontage type: West
- Frontage length: 85.00
Lot
- Size: 0.26 Acres
- Dimensions: 85 x 135
- Features: Urban, Rectangular, Airport, Arts Centre, Business Centre, Near Golf Course, Highway Access, Hospital, Landscaped, Library, Major Highway, Park, Place of Worship, Playground Nearby, Public Transit, Quiet Area, Rec./Community Centre, Regional Mall, School Bus Route, Schools, Shopping Nearby, Trails
- Topography: Flat
Details
- Additional structures: Shed(s)
- Parcel number: 174400051
- Zoning: ER
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Traditional
- Property subtype: Single Family Residence, Residential
Materials
- Brick, Stone, Stucco
- Foundation: Poured Concrete
- Roof: Asphalt Shing
Condition
- 6-15 Years,New Construction
- New construction: Yes
- Year built: 2019
Utilities & green energy
- Sewer: Sewer (Municipal)
- Water: Municipal
Community & HOA
Community
- Security: Alarm System, Carbon Monoxide Detector(s), Security System, Smoke Detector(s), Other
Location
- Region: Ancaster
Financial & listing details
- Price per square foot: C$728/sqft
- Annual tax amount: C$17,483
- Date on market: 9/29/2026
- Inclusions: Other, Fridge, Gas Stove, Hood Fan, Wall Oven, Microwave, Dishwasher, Beverage Fridge, Washer, Dryer, Lynx bbq, Lynx Fridge, Kalamazoo Pizza Oven, Hot Springs Hot Tub, 12 Security Cameras, Door Bell Camera, control4 Automation System, K-Array Premium Sound System, Mounted Televisions, Theatre Screen And projector, Basement: Fridge, Speed Oven, Pool Equipment, Two Car Lifts.
Price history
| Date | Event | Price |
|---|---|---|
| 9/29/2026 | Listed for sale | C$3,495,000C$728/sqft |
Source:  TRREB #X13839496 Report a problem | ||
Public tax history
Tax history is unavailable.
Climate risks
Neighborhood: St. John's
Nearby schools
GreatSchools rating
No schools nearby
We couldn't find any schools near this home.
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