The six shortlisted designs for developer Beulah International’s Southbank tower competition have been revealed, with the design concepts including twisting towers, a propeller penthouse and stacked neighbourhoods.

The $2 billion mixed-use tower development in Melbourne’s Southbank will include retail, hotel, residential, commercial, cultural and public spaces. Currently occupied by a BMW car dealership, the site is located on the corner of Southbank Boulevard and City Road.

The six teams to submit their design concepts as part of the six month long competition include, Bjarke Ingels Group with Fender Katsalidis Architects, Coop Himmelb(l)au with Architectus, MAD Architects with Elenberg Fraser, MVRDV with Woods Bagot, Office for Metropolitan Architecture (OMA) with Conrad Gargett, and UNStudio with Cox Architecture.

Take a look at the design proposals below:

Bjarke Ingels Group X Fender Katsalidis Architects

The Lanescraper is two blocks that extend upwards and interlock to provide connectivity and structural rigidity. In the spaces between, a series of laneways from bottom to top are proposed, each one with a unique identity and experience.

The Lanescraper is proposing a two-tiered concentric auditorium that will seat in excess of 3,000 patrons and a BMW experience centre that occupies four levels, connected by a central void and car lift around which a spiral stair meets all levels.

Reaching 359.6m tall, The Lanescaper will include retail and culture amenities, including a library and both informal food areas and formal restaurants, as well as office, hotel and serviced apartments and residential.

Coop Himmelb(l)au X Architectus

The Beulah Propeller City is the creation of a vertical city, comprising of four main functional parts; public podium, office, hotel and apartment tower. Reaching 335m in height, The Beulah Propeller City will feature 18 floors of mixed-use retail and public space including cultural functions, childcare, entertainment and exhibition, cinema, recording studios, food hall and beauty and wellness.

Office space will take up a total of 16 floors, with the hotel accounting for 15 floors. The hotel terrace will provide a winter-garden escape, like a sky-high conservatory, complete with a pool, tropical rainforest character and seating. The most prominent part of the structure is the residential, accounting for 46 floors, with residential rooms featuring a minimum of 2.7m high ceilings with floor to ceiling glass.

Residences will be separated into mid-rise, high-rise, sky homes, penthouses and the propeller penthouses. The propeller penthouse will feature a private secluded landscape and a pool.

MVRDV X Woods Bagot

Stack is a new kind of skyscraper with stacked neighbourhoods connected from the bottom to the top and vice versa by lifts, stairs and escalators to create an interconnected vertical city. Each bar within the stack has its own appearance in pattern texture and shade, reflecting the building barcode of functions.

This ranges from openable façades at the park levels and transparent façades in the public retail facilities, with a tree-like structure representing the park and a beehive structure marking the residential part. Reaching 359m high, Stack features a hotel pool in the centre of the building, complete with an underwater city window, surrounded by an amphitheatre of
terraces and stairs.

On top of the hotel is The Tropical Garden; a rainforest garden high above the city and within the forest understory, a childcare centre is created.

Paths and recreation spaces enable a variety of activities typically impossible in high-rise structure, including being able to walk your dog, or go for a jog. A suspended ‘forest track’ open stair offers a sublime climb through the treetops and surrounding skyscraper rooftops.

OMA X Conrad Gargett

By emphasising the base of the building instead of its crown, this concept proposes a ground floor market that draws inspiration and references the historic Melburnian arcades and vaulted markets.

The base of the proposed design is a 24/7 mixed-use vertical city in which many cultural, commercial, educational and social elements are bound by retail, food and beverage. In this vertical city, there are highways of movement through the large express escalators, shortcuts by elevators, and laneways to wander on through the normal escalators, stairs, and voids.

Situated above the vertical city are commercial office spaces, hotel and residences, with supporting amenities at the top of the tower. The residential part of the tower is situated at the top to capitalise on views and daylight.

MAD Architects X Elenberg Fraser

Urban Tree will feature small, green foothills that lead pedestrians up to the ‘mountain village’, with amenities along Southbank Boulevard including a children’s playground, public artwork and a water feature.

With 43 dedicated residential floors and 24 floors of hotel, the most unique feature of Urban Tree is The Cloud, situated 317m high in the sky. Offering 360 degree views of Melbourne, The Cloud will house the hotel’s public amenities and will change appearance as the day transitions to night, with LED lighting creating an illuminated spectacle.

Reaching 360m high, Urban Tree will include a 1,200 person capacity auditorium space, an 800 person capacity tiered seating concert hall, a library, cinema, food hall, organic supermarket, commercial office space and a childcare facility with outdoor terraces.

UNStudio X Cox Architecture

Green Spine will comprise of two towers both with twisting geometry of glass façade and terracing. Conceived as a conceptual extension of the Southbank Boulevard, the Green Spine will provide a pedestrian connection at street level through a series of stairs and stepped terraces, leading visitors up along the retail and entertainment precinct to The Garden.

From thereon, the spine twists into a series of outdoor spaces and green devices along the façades of the two towers, culminating at the top of the residential tower as the Future Garden. The residential tower will reach 356.20m high, crowned by the Future Botanic Garden, a publicly accessible garden in the sky.

The hotel and office tower will reach 252.20m high. Green Spine will include residential, office, hotel, entertainment facility, BMW Experience Centre, Childcare Facility, School, Retail and Food Precinct complete with a food hall, cinema, library and interactive spaces.

All of the designs will be on public display until 1 August at the Beulah Pavilion, a commissioned pop-up structure in front of the Southbank red steps.