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100 Seneca Drive

Hamilton (Ancaster), Ontario L9G3B8

MLS # X13209994

$3,695,000

Property Details

Type

Detached

Beds

6

Baths

6

Status

For Sale

About this property

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!

Mortgage Estimate

Estimated monthly payment

Calculating…

Estimate only. Taxes, insurance, condo fees, and lender terms are not included.

Monthly costs to verify

Property taxes: about $1,457/month based on listed annual taxes.

Estimate only. Confirm taxes, condo/maintenance fees, insurance, utilities, and lender terms before making decisions.

Rooms

Room Level Dimensions
Foyer Main level 2.74 x 3.73
Other Second level 3.96 x 3.66
Bedroom 2 Second level 4.27 x 3.66
Bathroom Second level 0 x 0
Bedroom 3 Second level 4.44 x 3.35
Bathroom Second level 0 x 0
Bedroom 4 Second level 4.62 x 4.11
Office Main level 4.17 x 3.66
Bathroom Second level 0 x 0
Laundry room Second level 0 x 0
Recreational, Games room Basement 14.78 x 5.03
Bedroom 5 Basement 4.11 x 3.73
Bathroom Basement 0 x 0
Bedroom Basement 3.81 x 3.66
Media Basement 6.93 x 3.96
Laundry room Basement 0 x 0
Living room Main level 4.29 x 3.96
Bathroom Main level 0 x 0
Dining room Main level 5.13 x 4.29
Family room Main level 5.64 x 5.18

Facts & Location

Interior Size

7,000 sq ft

Parking

8 spaces

Lot Size

85 x 135 FT

Annual Taxes

$17,484

Listing data

Listing information is provided for personal, non-commercial use and should be independently verified before making real estate decisions.

Last refreshed: Jul 13, 2026 3:31 AM

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