18 days on Market

100 Seneca Dr, Hamilton, Ontario L9G 3B8

Detached
4 + 2
6
~3500-5000 sqft
$3,995,000
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Detached
4 + 2
6
~3500-5000 sqft

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Highlights

Property Estimate

Days on market18 days

Estimated valueNot available

Price/Sqft$970/sqft

Monthly cost

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Description

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!


Property Details

Style2-Storey
ViewPool
Age of property6-15
SqFt~3500-5000 SqFt
Lot Size11,475 SqFt(135 x 85)
Parking Spaces8
MLS ®NumberX12957114
Community NameSt. John's
Data SourceTRREB
Listing byROYAL LEPAGE STATE REALTY

Features

Heating: Forced Air
Central Vacuum
Cooling: Central Air
Fireplace
Basement: Finished, Full

Main Floor

Foyer

2.74 x 3.73

Office

4.17 x 3.66

Living

4.29 x 3.96

Bathroom

0.0 x 0.0

2 Pc Bath


Features

Lot size: 11,475 SqFt
Pool: Inground, Salt

Parking

Garage spaces 2

Garage type Attached

Other parking spaces 6

Total parking spaces 8


Property listed by ROYAL LEPAGE STATE REALTY, Brokerage
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Market Data - St. John's

Geo Zone Map ThumbnailSt. John's

Seller's Market

View Market Data

Detached house - for the past 30 days

Buyer's market Seller's market

Avg. Days on Market

Past 30 days

39 days

Compared to

2025

112 days

2024

7 days

2023

25 days

New Listings

Past 30 days

6 listings

Compared to

2025

5 listings

2024

9 listings

2023

3 listings

Units sold

Past 30 days

3 units

Compared to

2025

2 units

2024

3 units

2023

4 units

Median Sold Price

Past 30 days

$890,000

Compared to

2025

$1,012,000

2024

$1,365,000

2023

$1,182,500


Population and Demographics

Overview

Total population 1123
Average household income $210,164

Age (%)

0 to 19
22%
20 to 34
14%
35 to 49
17%
50 to 64
22%
65 and plus
26%

Household composition (%)

Single family
81%
Single person
17%
Multi family
1%
Multi person
1%

Mother tongue (%)

English
87%
Others
4%
Italian
2%
Arabic
1%
Mandarin
1%
French
1%
Polish
1%

House tenancy (%)

Owners
93%
Renters
7%

What’s nearby?Essentials within 5 km

Local Logic

Transportation Scores

Estimated Budget