The Penthouse/93 Kavanagh Street, Southbank VIC 3006

Four Penthouse Residences. One Crown Above Melbourne.

For over twelve months, OSK Property has worked in close collaboration with COX Architecture to design four singular residences at the pinnacle of Melbourne Square.

Every line has been drawn with purpose.

Every material, sourced from the world’s finest selections.

The result: The Penthouse Collection — four one-of-a-kind residences that define a new chapter in Melbourne’s skyline.

Each residence spans two levels, defined by grand 6-metre volumes in the main living spaces and refined 3-metre ceiling heights across the more private quarters.

Designed as four-bedroom, four-bathroom homes with study and two secure parking spaces, every penthouse features a sculptural fireplace and a private upper suite with panoramic views.

Each residence bears a name drawn from the world’s most enduring symbols of rarity — The Amethyst, The Emerald, The Sapphire, and The Ruby.

Like gemstones, each captures a unique orientation of light: a singular perspective, cut and composed for brilliance from every angle.

The Amethyst 297m² – $7,578,000
Facing the city. Defined by symmetry and skyline. A residence of vertical clarity and calm.

The Emerald 316m² – $8,380,000
Overlooking the Royal Botanic Gardens. Open volumes and a mezzanine retreat immersed in green horizon.

The Sapphire 285m² – $7,860,000
Oriented to the bay. Expansive glazing and a private retreat above the waterline.

The Ruby 324m² – $8,586,000
Set to the west. Evening sun, warm materials, and proportions tuned to the colour of dusk.

Together, they form 1222m² — the entire sixty-seventh level — available individually or as one singular full-floor residence, priced at $32,400,000.

With fitout works set to begin November 2025, delivery has been entrusted to Chroma Group — one of Australia’s most respected boutique builders, known for precision and craftsmanship of the highest order.

Chroma Group’s portfolio spans luxury residential, hospitality, and landmark design collaborations, including Saint Haven, Atria Restaurant at The Ritz-Carlton, and The Beverly Rooftop.

Their reputation for refinement and flawless execution makes them the natural choice to bring this collection to life.

This is the final opportunity to express interest in acquiring the entire floor and its unparalleled 360 degree skyline.

Once fitout works commence in a few weeks, each residence will be built as its own definitive residence — and the chance to unite them will close forever.