Skip to content
1 / 54
For saleMLS® X13839496

100 Seneca Drive, Hamilton, ON L9G 3B8

Ancaster · L9G 3B8

$3,495,000

$999 / sq ft

1 months on market

Bedrooms
4+2
Bathrooms
6
Interior
3,500 sf
Parking
8
Lot
85 × 135 ft
Age
6-15 years

What's special

  • Attached garage
  • Pool
  • Central air
  • Finished basement
  • 2 fireplaces
  • Auto garage door remote
  • Bar fridge
  • Carpet free

Book a private showing

Pick a time that suits you. Free, with no obligation.

Loading open times…

About this property

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!

Rooms

20 rooms. Dimensions as published by the listing brokerage.

Room dimensions and features
RoomLevelDimensionsFeatures
FoyerMain2.74 × 3.73 m9.0 × 12.2 ft—
OfficeMain4.17 × 3.66 m13.7 × 12.0 ft—
Living RoomMain4.29 × 3.96 m14.1 × 13.0 ft—
BathroomMain—2 Pc Bath
Dining RoomMain5.13 × 4.29 m16.8 × 14.1 ft—
Family RoomMain5.64 × 5.18 m18.5 × 17.0 ft—
BreakfastMain4.42 × 4.42 m14.5 × 14.5 ft—
SunroomMain5.44 × 4.27 m17.8 × 14.0 ft—
Primary BedroomSecond6.65 × 4.65 m21.8 × 15.3 ft—
BathroomSecond—5 Pc Ensuite
OtherSecond3.96 × 3.66 m13.0 × 12.0 ft—
Bedroom 2Second4.27 × 3.66 m14.0 × 12.0 ft—
BathroomSecond—3 Pc Ensuite
Bedroom 3Second4.44 × 3.35 m14.6 × 11.0 ft—
BathroomSecond—3 Pc Ensuite
Bedroom 4Second4.62 × 4.11 m15.2 × 13.5 ft—
BathroomSecond—3 Pc Ensuite
LaundrySecond——
RecreationBasement14.78 × 5.03 m48.5 × 16.5 ft—
Bedroom 5Basement4.11 × 3.73 m13.5 × 12.2 ft—

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

Property details

Property

Property type
detached
Bedrooms
4 + 2
Bathrooms
6
Interior size
3,500 sq ft
Year built
6-15
Lot size
85 × 135 ft
Zoning
ER
Possession
flexible

Interior

Basement
Finished, Full
Heating
Forced Air · Gas
Cooling
Central Air
Fireplaces
2
Exposure
West

Exterior & services

Construction
Brick, Stucco (Plaster)
Garage
Attached
Parking spaces
8
Pool
Inground,Salt
Sewer
Sewer

Costs

List price
$3,495,000
Property taxes
$17,484 / year (2025)
Price per sq ft
$999

Listing

MLS® number
X13839496
Status
For sale
Listed
September 29, 2026
Days on market
36
Last updated
September 29, 2026
Listing brokerage
ROYAL LEPAGE STATE REALTY

Price & sale history

This property's sale history is hidden

TRREB rules require a free account before sold and leased prices can be shown. One registration unlocks full sale history across the site.

Unlock sale history & sold price

Free. Takes about twenty seconds.

Before you make an offer

What this home costs beyond the asking price, and how that price compares to what else is on the market.

How this price compares

This home is priced above most comparable listings — about 89% of comparable detached listings in Ancaster are asking less.

$980KMedian $1.50M$3.50M
This home
$999 / sq ft
Comparable median
$700 / sq ft

Based on 81 comparable active detached listings in Ancaster. These are asking prices, not sale prices.

Mortgage estimate

Down payment20.0% · minimum $699,000
$699,000
Interest rate5-year fixed, illustrative only
4.49%
Amortization
Principal & interest
$15,459.56
Property tax (est.)
$1,456.96
Estimated monthly
$16,917

Estimate only. Excludes CMHC insurance premiums, which apply below 20% down, and does not constitute a mortgage approval or an offer of credit.

Land transfer tax

Payable on closing, on top of the purchase price.

Ontario
$73,850
Total due on closing
$73,850

An estimate on the asking price of $3,495,000. Rates current as of September 2026; confirm the final figure with your real estate lawyer.

Listing courtesy of ROYAL LEPAGE STATE REALTY. Listing data is provided in part by the Toronto Regional Real Estate Board (TRREB) and is deemed reliable but is not guaranteed accurate. Information is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties. Data is updated every 15 minutes.

$3,495,000

Contact Book a viewing

Comparable sales nearby

What similar homes in this area actually sold for.

Nearby sold prices are hidden

Recent closed sales for comparable homes in this area — the numbers that tell you whether the asking price is realistic.

Unlock nearby sold prices

Free. Takes about twenty seconds.

Similar properties nearby