68 Cliff Road, Wollongong

This project is a seven storey apartment complex on one of Wollongong's premier beachfront locations. Northrop has been involved in the structural, civil and hydraulic documentation for this project. The desire for maximum number of floors and maximum ceiling heights lead to minimal structural zones, creating quite a challenging project.

Seawinds, 130 Terrigal Drive, Terrigal

This development, consisting of a basement carpark below serving 2 spacious units overlooking Terrigal Beach, was completed in 2007. Northrop provided the structural, civil and mechanical engineering for the development. Since this projects completion, Northrop has provided the engineering design on a further 7 units on the two adjacent sites for the same developer, which are due for completion early 2009.

Victoria Street, East Gosford

Northrop provided the structural and civil engineering design for these 6 units, constructed at East Gosford. The design has since been repeated in a similar form on two more projects with the same developer in the Central Coast region.

Cliff Avenue, Avoca

Constructed on the cliff-face of Avoca, these 6 units are in arguably the best location on The Central Coast. Built into the hillside, the units make use of the natural slope to ensure all units make full use of the 270 degree views of Avoca Beach, the Avoca township and the Pacific Ocean. Northrop provided the structural and civil engineering for the project, which included pinning the structure to the bedrock deep within the cliff-face.

Landmark Apartments, Charlestown

The 'Landmark' building is situated on the corner of Pacific Highway and Smith Street Charlestown. The project consists of a mixed use development, including 2 levels of basement car parking, 2 levels of commercial space with a cafe at podium level, together with 7 floors of residential apartments comprising of 58 sole occupancy units.

Of particular significance to this project is the detailed analysis of the effects of mine subsidence on the building using 3D finite element analysis software. To our knowledge this is the first time this has ever been done in Australia. The development is situated in an area identified by the Mine Subsidence Board (MSB) as being undermined, and three dimensional finite element software has been utilised to model the impact of potential ground surface movements on the structure.

Duntroon Avenue, St Leonards, Stage One

Northrop provided structural engineering services for this residential development consisting of 4 separate buildings. The buildings vary from 5 to 7 suspended floors over a basement carpark. Typical floors post tensioned concrete flat plates with post tensioned transfer beams over the carpark level. The site is located adjacent to a railway corridor, necessitating the use of vibration and isolation details.