$10 million Ontario mansion boasts dramatic staircase and indoor basketball court

Listing agent Voula Argyropoulos tells blogTO that this Ontario home at 35 Kingswood Dr. in King is "true trophy estate."

And honestly? She's not wrong.

Known as Kingswood Manor, 35 Kingswood Dr. is a gated mansion that sits on a sprawling 3.5-acre, fully enclosed lot in one of the Ontario town's most exclusive neighbourhoods.

The dining room. 

Recently reimagined by Delfina Group Custom Builder in collaboration with Studio Brocca, the approximately 12,000 square foot residence manages to feel both bold and timeless.

A massive terrace overlooking the treetops. 

"[It's] a new-era custom build, crafted with a level of design, land, and construction quality that simply cannot be replicated today," said Argyropoulos.

The dramatic staircase. 

Let's start with the star of the show: a dramatic curved staircase inspired by the Guggenheim Museum.

The foyer. 

It's sculptural, it's sweeping, and it instantly sets the tone for a home that takes architecture very seriously. 

The living room. 

The interiors unfold with the same level of intention.

The kitchen. 

A marble-clad chef's kitchen anchors the home, complete with dual islands, bespoke cabinetry, and lighting that feels more gallery installation than builder-basic.

The primary ensuite. 

Throughout the house, top-quality millwork and custom detailing quietly remind you that this home is built to last.

The family room. 

As Argyropoulos notes, 35 Kingswood Dr. is a solid concrete home.

The primary bedroom with a terrace. 

Designed for both big-ticket entertaining and everyday living, the layout includes five generous bedrooms, eight bathrooms, two laundry rooms, expansive terraces, and a walk-out lower level that doesn't feel remotely basement-y.

A home office. 

And, of course, the entire home is fitted with radiant heated flooring, because once you've experienced warm floors in winter, there's no going back.

The home theatre. 

Then there are the resort-like amenities.

The basketball court. 

The soaring indoor basketball court is a showstopper — and fun fact, Argyropoulos told blogTO it was originally an indoor pool.

The outdoor pool. 

The owners opted instead to build a massive resort-style outdoor pool, proving you really can have it all if you have 3.5 acres to play with.

An aerial view of the property. 

And if this trophy estate was previously out of budget, there's now a little breathing room: the asking price has just dropped from $11,800,000 to $9,850,000.