(In progress) A major renovation on the Northern Beaches

sydney concreters northern beaches

A complex extension requiring extensive propping and structural support to accommodate the new suspended concrete slab.

This new project on Sydney’s Northern Beaches comprises a highly technical renovation and extension, blending old with new to create a modern home with elevated living and entertaining space, complete with pretty views of Middle Harbour beyond.

sydney concreters northern beaches
Above: Props in place on the original lower level of the home to support the formwork for the suspended concrete slab above. Note the original parquet timber flooring and tiled patio.

A challenging structural renovation.

Unlike a typical knockdown-rebuild, this project retained the lower level of the existing home, with a new suspended first floor constructed above it. Once complete, the transformation will feature a spacious upper-level living area, an expansive outdoor entertaining space, and a large rooftop terrace.

Building atop the existing timber-framed ground floor added significant engineering complexity to the project.  This required careful planning and structural ingenuity to overcome the challenges of the site.

Much of our early work involved extensive propping. Underneath the house, we had to support not only the existing timber floor and parquetry but also the concrete verandah slab, all while forming up the new upper slab above.

sydney concreters northern beaches
Above: Structural supports under the house in the lower garage and storage area.

Supporting the massive suspended concrete slab.

Over the course of two weeks, eight truckloads of material were delivered to site to form up this 300sqm suspended concrete structure. It was a tight and technical process, requiring constant coordination with the site engineer, the builder and our team, to ensure the existing structural components could be safely supported throughout the build.

To support the new top floor slab, we brought in 14 tonnes of steel reinforcement, delivered and lifted into place with the help of a construction rescue system. This material will support the massive 80 cubic metre suspended concrete slab.

sydney concreters northern beaches
Above: Fourteen tonnes of steel reinforcement in place, ready for the concrete pour.

New level, new lifestyle

The newly formed upper slab will become an enormous 180 sqm outdoor terrace space, framed by a concrete upstand in preparation for future glass balustrades, to maximise the view from all angles.

While casting the roof slab we encountered days of torrential Sydney winter rain which added a final layer of difficulty. We pushed through, staying on track despite the conditions.

This Clontarf project is a perfect example of the complex structural renovation work we specialise in. We thrive on complex builds like this one where innovation and problem solving is all in a days work.

Stay tuned for more updates as this exciting build progresses.

sydney concreters northern beaches
Above: Concrete poured. Next, we will complete the concrete upstands in preparation for the glass balustrades.

 

North Shore Concrete Quotes

With 40+ years of concreting experience, we bring extensive knowledge to any concrete and formwork project.  We provide a high level of services and workmanship on all our projects, with attention to detail and a professional approach to every job. We are a friendly team, focused on our customers’ needs and satisfaction and getting the job done.

We have a local team of concreters, formworkers and steel fixers that are able to handle all residential and commercial projects, large and bespoke. We service the entire Sydney metropolitan area including the Eastern Suburbs, Northern Beaches, Upper and Lower North Shore and Sydney CBD.