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$6,300,000

455 WILLIAM STREET

Save this home

Beds

5

Baths

5 full + 1 half

Sqft

Year

Type

Single Family

Suite

Location nearby

Nearby school, halal, mosque, grocery, park, and transit layers are still being built for Niagara-on-the-Lake (Town). The listing facts above are live; the neighborhood-intelligence layer needs POI coverage before it can score this address properly.

About this home

Experience Refined Living In This Exquisite Estate Nestled In The Heart Of Historic Niagara On-The-Lake. Set On Nearly Three Acres Of Lush, Wooded Grounds, This Custom-Built Home Embraces A Modern French Country Aesthetic And Offers Unparalleled Privacy Just Moments From The Lake. Stroll To Nearby Boutiques, Acclaimed Restaurants, Theatres, And Golf Courses, And Enjoy The Vibrant Lifestyle That Makes This Community So Sought-After. Step Through An Impressive Stone Entryway Into A Grand Foyer Illuminated By Sparkling Crystal Chandeliers, Immediately Setting A Tone Of Sophistication. The Formal Living Room Invites Cozy Gatherings Around A Beautiful Cast Stone Gas Fireplace, While The Expansive Great Room Captivates With Vaulted Ceilings, Exposed Beams, And Abundant Natural Light Streaming Through Oversized Windows. A Charming Sunroom Offers A Peaceful Sanctuary For Morning Coffee, And The Upper Deck Complete With A Gas Fireplace Creates A Perfect Backdrop For Intimate Evenings Under The Stars. The Gourmet Kitchen Is Designed To Inspire Culinary Creativity, Featuring Granite Countertops, Premium Appliances Including A Sub-Zero Refrigerator And Wolf Induction Cooktop, And A Generous Walk-In Pantry. The Main-Level Primary Suite Provides A Serene Retreat With Spacious Walk-In Closets And A Spa-Inspired Ensuite Adorned With Luxurious Finishes. The Lower Level Reveals An Entertainers Paradise With A Family Lounge, Direct Access To A Pool Deck, Sauna, Hot Tub, And A Temperature-Controlled Wine Cellar. Four Additional Ensuite Bedrooms Ensure Comfort And Privacy For Family And Guests Alike. Impeccably Landscaped Gardens Surround The Estate, Offering A Stunning Outdoor Setting Ideal For Entertaining Or Quiet Relaxation. This Extraordinary Home Seamlessly Blends Timeless Elegance With Modern Comforts, Making It Truly One Of A Kind In Niagara-On-The-Lake (id:65958)

Subtype
Single Family
Architectural style
Bungalow
Structure
House
Community
101 - Town
Common interest
Freehold
Lot dimensions
180 x 424.8 FT
Bedrooms
1 above grade, 4 below grade
Parking
11 total
Stories
1
Fireplace
Yes
On market
Feb 26, 2026
Status changed
Apr 20, 2026
Annual tax
$13,099.18
Photos
48
MLS#
X12824724
Area
NIAGARA-ON-THE-LAKE_(TOWN)

Features and systems

Parking

Attached GarageGarage

Basement

FinishedWalk outN/A

Appliances

Oven - Built-InGarage door opener remote(s)

Heating

Forced airNatural gas

Cooling

Central air conditioning

Exterior

BrickStone

Flooring

Hardwood

Foundation

Poured Concrete

Lot

Wooded areaRavineConservation/green beltIn-Law Suite

Pool

Inground pool

Mortgage estimate

Estimated $25,537/mo at 4.5% with 20% down, 30-yr amortization.Estimate only — actual payment varies by qualification + insurance.

Listing brokerage

Listing brokerage on file

Listing data via CREA DDF®. Information is deemed reliable but not guaranteed accurate by CREA. Last updated Apr 20, 2026.

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