Frasers Property has appointed Australian firm Multiplex to build the final residential stage of its urban renewal project in Sydney.

The Wonderland component, as it is called, will comprise 294 apartments within a 13-storey curvilinear building in the Central Park project.

The A$140 million (S$146 million) construction contract is the second to be won by Multiplex at Central Park, which sits on 5.8 ha in downtown Sydney. The first was to build DUO - two buildings comprising a mix of residential and commercial space, including a Starwood Four Points Hotel and the heritage-listed Australian Hotel.

Multiplex will complete both of these buildings in 2018.

The Wonderland development requires a workforce of about 400 for a build time of around 19 months. This means that for almost two years, Multiplex will have up to 1,200 workers on-site at Central Park, making it one of the largest construction activities for a single contractor in Sydney, Frasers Property said in a statement yesterday.

Wonderland is on the southern boundary of Chippendale Green, Central Park's 6,400 sq m public park.

It is the last residential building to be released at Central Park and is 60 per cent sold. The entire Central Park development will eventually have 2,200 apartments.

Facilities at Wonderland will include a gym, a rooftop entertaining and dining terrace and two open gardens. A Greenwood Early Education and Childcare Centre there will accommodate 90 children. This will be the second childcare centre built by Multiplex at Central Park.

Central Park's project director, Mr Mick Caddey, said appointing Multiplex to the construction of DUO will allow for a seamless commencement of building on Wonderland.

"We have every confidence in Multiplex's ability to deliver a building of extraordinary quality," he said.

Most of Central Park is being jointly developed by Frasers Property Australia and Sekisui House Australia. Kensington Street and Wonderland are excluded from the joint venture.

Yasmine Yahya