CMS Surveyors were the principal surveying contractor for the Sydney International Towers Project at Barangaroo with 6 full-time teams on-site. Our work commenced with the in-ground works in the contaminated zones and continued through to the accurate setting out of the facade. All structural elements including curved concrete edges, detailed set out of safety screens and control of the high-rise lift cores were part of the surveyor's daily tasks.
This large scale, and high profile, project involved our surveyors undertaking a variety of survey functions in a high pressure work environment. Timelines and schedules were maintained whilst achieving accurate and prompt survey services which are essential for high-rise construction cycles.
This prominent building adjacent to North Sydney train station is receiving an extensive refurbishment including a whole new façade. CMS was approached at an early stage in the project to laser scan and model the building with this information forming the platform of the entire design and documentation process. This project is a great example of the ongoing benefits of the capture of scan data and the savings in time and money of developing a model of the built form and utilising survey accurate data from the beginning. Continual references to building survey data throughout the development have shown how a point cloud is the ultimate record of a structure and continues to pay dividends through the design and construction processes.
Constructed in 1912, this elegant structure of brick-built arches carries the double track Main West Line over Knapsack Gully near Lapstone NSW. At 12.5m the bridge’s spans are near the limit for brick arch construction. The bridge exhibits fine stone detailing and is a good representative example of brick arch rail viaducts of its era. The challenge of modelling this structure lay in recreating accurate archways that curved in two directions which is imperceptible to the naked eye but is apparent from the laser scan point cloud data. The result was a model as graceful as the structure itself.
CMS Surveyors was invited by award winning Tzannes Architects to create a detailed, survey accurate, record of the existing building on this site and develop a high detail model to support the proposed $10.7 million refurbishment. The site on Abercrombie Street is in the City of Sydney’s Chippendale Conservation Area and is a prominent historical building in the area. For this reason, the development application needed to have a faithful record of the existing structure to accurately develop the new design. In addition to the subject site, all adjoining buildings were also modelled from scan data to obtain the best use of survey accurate context. In this case, the City’s DA approval noted that the “…design of the addition responds appropriately to the scale and form of the heritage item on the site and of adjoining buildings.” A scan to BIM model is the first step in achieving an expedited and successful development process.
As principal surveying contractor, CMS Surveyors provided our client, Mirvac Constructions, with full-time survey services for 2 years. No. 8 Chifley Square is an innovative and progressive 30 storey commercial tower. CMS Surveyors were responsible for the set out of all major building elements including the concrete superstructure, precast mega columns, structural steel and lift cores, mega struts and facade bracing, and external steel fire stairs.
The unique design of this project created many surveying challenges. The 18 metre mega struts supporting the 30 storey structure were installed using precise surveying techniques, achieving required building tolerances and avoiding construction delays.
200 George Street is a 37 storey landmark development in the CBD of Sydney and CMS Surveyors were the principal surveying contractor for Mirvac Constructions. Initially, the project involved the set out of a 4 storey basement excavation for Mainland Civil. Once excavation was completed, CMS Surveyors, as principal surveyor for Mirvac, were responsible for the set out of all concrete structural elements. Additional survey requirements included the set out of curved glass facade, detailed structural steel on the roof and the set out of complex features associated with the construction of the foyer. This project also required the accurate set out of the striking mega columns which support the entire structure. This three year project has been an impressive achievement for CMS Surveyors, delivering a full-time survey service for a major client on a high profile building development.
This distinguished sandstone cottage dates back to 1881 and features a Convict era stone well in the centre of the building. Carter Williamson Architects turned to CMS Surveyors to provide a basic detail, but survey accurate, laser scan and model of the buildings on the subject and adjoining sites. The property in Sydney’s Birchgrove fronts directly onto the Parramatta River and included elements in the model such as the sea wall, slipway and a jetty. With the emphasis on speed of delivery, CMS was able to deliver a precise, lower detail BIM model in rapid time.
International House is a stately 7 storey building on the corner of Pitt Street and Bathurst Street in the Sydney CBD. The building dates from 1908 and has significant heritage value to the city which is why the developers approached CMS Surveyors to provide a high resolution digital laser scan of the building. The point cloud data capture enabled us to create a digital twin model of the building using Revit BIM software with a particular emphasis on a high detail façade to enable the architects to develop their adaptive reuse designing with the confidence they are using survey accurate information of the existing building. The result is a stunning design concept by TKD Architects for the proposed $32.7 million refurbishment.
The architects for the proposed refurbishment of this Sydney home required a high detail, survey accurate record of the existing buildings on the property known as “Penhallow”, a substantial 4,400m² parcel of land perched on the edge of Castlecrag overlooking Middle Harbour. Originally designed in the 1950’s, the large dwelling house and guest house have multiple levels and roof planes that provided our modelling team with the challenge of high detail building elements for the exteriors and interiors of the buildings. Dreamscapes Architects in Sydney have used the survey model to develop a dynamic, modern building fabric link between the existing dwellings and maximise the amenity of the site aspect.
CMS Surveyors were commissioned to provide a 2D plan and Revit model of the Hillsong Church and associated buildings over an 8 hectare site. By utilising our scanning technology, CMS were able to provide the client with a product that far exceeded expectations and delivered within an extremely quick turnaround (2 weeks) for such a large and complex survey.
CMS Surveyors were contracted to provide detail and level surveys for 9 different high school sites across Sydney as part of a refurbishment program. With each site having differing and specific requirements, CMS delivered on a tight time frame across the entire project.
CMS Surveyors were contracted to supply a scan of a Morton Bay Fig in the grounds of the University of Sydney, adjacent to the site of a proposed new build. The site architects were concerned that the position of the new building would impact on the historical tree. CMS Surveyors provided a scan of the tree and overlaid both the proposed building and tree in a Revit model to illustrate the relative positions of both. Subsequently, a potential conflict was identified. Costly rebuilds and redesigns were avoided due to the early detection of this positional clash.
CMS Surveyors supplied an extensive detail and level survey for the proposed Malabar Headland Walkway Project. In order to speed up field work time, CMS utilised 2 survey teams and the CORS-net GNSS system. This enabled a quick turnaround between field and office and, ultimately, the delivery of the final product.