100 Seneca Drive, Hamilton, ON L9G 3B8
This architectural masterpiece offers 7,000 sq. ft. of luxurious living space with 4+2bedrooms, 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!
Foyer
2.74 x 3.73
Main
Office
4.17 x 3.66
Main
Living Room
4.29 x 3.96
Main
Bathroom
2 Pc Bath
0 x 0
Main
Dining Room
5.13 x 4.29
Main
Family Room
5.64 x 5.18
Main
Breakfast
4.42 x 4.42
Main
Sunroom
5.44 x 4.27
Main
Primary Bedroom
6.65 x 4.65
Second
Bathroom
5 Pc Ensuite
0 x 0
Second
Other
3.96 x 3.66
Second
Bedroom 2
4.27 x 3.66
Second
Bathroom
3 Pc Ensuite
0 x 0
Second
Bedroom 3
4.44 x 3.35
Second
Bathroom
3 Pc Ensuite
0 x 0
Second
Bedroom 4
4.62 x 4.11
Second
Bathroom
3 Pc Ensuite
0 x 0
Second
Laundry
0 x 0
Second
Recreation
14.78 x 5.03
Basement
Bedroom 5
4.11 x 3.73
Basement
Bathroom
3 Pc Bath
0 x 0
Basement
Bedroom
3.81 x 3.66
Basement
Media Room
6.93 x 3.96
Basement
Laundry
0 x 0
Basement
Interior features
Auto Garage Door Remote, Bar Fridge, Carpet Free, Central Vacuum, Floor Drain, In-Law Suite, Sump Pump, Storage, Water Heater Owned, Water Meter, Workbench, Separate Heating Controls, ERV/HRV
Basement
Finished, Full
Bathrooms
1 × 5-piece — Second, 3 × 3-piece — Second, 1 × 2-piece — Main, 1 × 3-piece — Basement
Fireplace
Yes
Family room
Yes
Kitchens
2
Rooms (above / below grade)
18 above, 9 below
Approximate age
6-15
Architectural style
2-Storey
Construction materials
Brick, Stucco (Plaster)
Foundation
Poured Concrete
Roof
Asphalt Shingle
Exterior features
Built-In-BBQ, Hot Tub, Deck, Landscape Lighting, Landscaped, Lawn Sprinkler System, Lighting, Patio, Porch
Direction faces
West
Pool
Inground, Salt
Garage type
Attached
Garage spaces
2
Total parking spaces
8
Driveway parking
6
Parking features
Private Triple
Lot size
85 x 135 ft
Cross street
Algonquin Avenue
Directions
Highway 403 to Mohawk, Left on Algonquin, right on Seneca Dr
Neighbourhood
Ancaster
Heating
Forced Air — Gas
Cooling
Central Air
Water
Sewer
Sewer
List price
$3,495,000
Original list price
Annual taxes
$17,484
Tax year
2025
Legal description
LT 49, PL 1064; S/T AN33948 ANCASTER (AMENDED 08/15/00 BY LR2) CITY OF HAMILTON
Inclusions
Exclusions
MLS #
X13839496
Status
Active
Transaction type
For Sale
Property type
Residential Freehold
Property sub type
Detached
Days on market
List date
Possession
flexible
Occupancy
Owner
Listing brokerage
ROYAL LEPAGE STATE REALTY
$1,424,950
Median list price
40
Active listings
New in last 30 days
Median days on market
Estimated monthly payment
$16,755
Educational estimate only — actual payment depends on your lender, credit, and insurance requirements.
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