Three-dimensional computer modeling is leading Sydney into a curvaceous new architectural era of complex shapes and fluid geometrics that should spell an end to the box-like apartments of the past.

Spearheading the design revolution is a 17-storey building in the heart of the CBD called eliza, where every floor is a different shape. The facade is contoured, sculptured and asymmetrical.

The form and fluidity of the building has been linked directly to important environmental factors, and at its rear will be a living 'green screen'— a five storey-high wall of evergreen climbing plants.

eliza will be built at 141-143 Elizabeth Street next door to the 5 star Sheraton on the Park. It has been designed using advanced digital technology and visualisation software which allows users to work concurrently.

"There is a uniformity to Sydney apartment developments which we want to avoid," says Edward Doueihi, managing director of Ceerose, which is developing and constructing eliza.

Ceerose engaged architect Tony Owen, whose digital designs are better known in the Middle East and Asia than in his home city.

The lobby includes a curved sandstone wall, limestone floors, laser-cut timber screens and onyx-clad lifts. eliza will also have a business centre, library, lounge area, meeting room and a concierge.

Levels two to six will comprise 10 half-floor apartments with two bedrooms, two bathooms and a study. On the upper levels will be eight four-bedroom apartments, each taking up an entire floor.

The penthouse will have two complete floors of living space plus a rooftop level with limestone paving, hardwood timber decking, a landscaped garden, an infinity-edge pool, outdoor kitchen and entertaining facilities.

Kitchens will have limestone floors, calcutta marble benchtops, stainless steel and marble splashbacks, an island bench and a walk-in pantry.

A feature of many apartments will be wintergardens, which can open for ventilation or be sealed to retain heat.