$3,995,000Asking Price
100 Seneca Drive, Hamilton, ON L9G 3B8
Ancaster, Hamilton
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!
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!
See MoreKey Info
- 2-Storey Detached
- 6-Car Driveway
- 2-Car Attached Garage
- Algonquin Avenue
- 3500-5000 Approximate Sq Feet
- 6-15 Years Approximate Age
- Basement: Finished, Full
- 2 + 1 Kitchens
- Forced Air Gas Heating
- Central Air
Property
- Lot Size 85 x 135 Feet
- Brick Exterior
- Taxes were $17,483 in 2025
- Possession: Flexible
Details
- Fireplace
- Family Room
- Inground Pool
- Central Vacuum
- Sewers
- Municipal Water
- MLS #X12957114
- ROYAL LEPAGE STATE REALTY
Extras
Rooms
| Room | Floor | Dimensions | Details | |
|---|---|---|---|---|
| 1 | Foyer | Main | 8.99' x 12.24' | |
| 2 | Office | Main | 13.68' x 12.01' | |
| 3 | Bathroom | Main | 2-PieceBath | |
| 4 | Breakfast | Main | 14.50' x 14.50' | |
 | 1 5-Piece Bathroom | |||
| 3 3-Piece Bathrooms | |||
| 1 2-Piece Bathroom on Main Floor | |||
| 1 3-Piece Bathroom | |||
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Who lives here?
Ancaster, Hamilton is a west GTA neighbourhood notable for its university grads, executives and business, health and education, law & public sector professionals. Residents tend to be older with a significant number of kids aged 10 to 14, youth aged 15 to 19, adults aged 45 to 64 and seniors aged 65 to 74.
Families
Kids Per Family
1.2
kids per family
in the neighbourhood.
Singles
36%
of residents are
single and loving it.
36% singles
Hamilton (46%)Renters
7%
of residents
are renters.
7% renters
Hamilton (32%)Education
48%
of residents are
university grads.
48% university grads
Hamilton (28%)Income
Average Household Income
$188K
is the average household
income in the neighbourhood.
Professions
Professions
| Sales | 12% |
| Government | 12% |
| Business | 10% |
| Management | 9% |
| Health | 7% |
Immigrants
18%
of residents were
born outside of Canada.
18% immigrants
Hamilton (25%)Birthplace - All
3.3% from UK
All-time
Birthplace - Recent
0.4% from USA
Recent
Foreign Languages
Foreign Languages
| Italian | 2% |
| French | 1% |
| German | 1% |
| Polish | 1% |
| Mandarin | 1% |
Religions
Religions
| Christian | 74% |
| Jewish | 2% |
| Muslim | 2% |
| Hindu | 1% |
