Modular Building Systems (MBS) is an Australian owned Company based in NSW specialising in the Manufacture and Installation of Prefabricated Affordable Modular Buildings.

Our Modular Buildings offer flexibility and a low cost alternative to the Traditional Built Form preventing unnecessary delays and expenses as our manufacturing process is significantly quicker than conventional methods. Prefabricated Demountable or Modular Buildings can be customised to your specification with our in house Design and Estimating Teams.

Whether you are after Switchrooms, Cabins, Health Buildings, Amenities, Accommodation Buildings, Office Complexes, Classrooms, Ticket booths or any other custom requirement MBS can service your needs with our in house team.

View the MBS Corporate Profile here.


MBS (Modular Building Systems Pty Ltd) started out as a family owned company in 2007. MBS was acquired by Fleetwood Corporation Limited, an ASX listed company that recently celebrated its 50th anniversary, in August 2018.

The acquisition of MBS has made Fleetwood the largest vertically integrated modular manufacturing business in Australia with manufacturing facilities in NSW, VIC, QLD, SA and WA.

Joining Fleetwood gives MBS access to over 200,000m2 of manufacturing facilities. We directly employee over 340 staff and 150 additional subcontractors along with an extensive supply chain from local suppliers and sub-contractors.

MBS specialises in delivering high quality turnkey modular building projects. MBS services include design, manufacture and installation of prefabricated modularised buildings, providing solutions for Permanent and Semi-permanent modular buildings tailored to client’s specific requirements.


Meeting the challenge of accommodating people and communities more cleverly, simply and efficiently



Relationship driven with a passion for continual improvement


Provide a safe and healthy workplace that promotes diversity and inclusion


Accountable for our actions upholding the highest ethical standards


Reward and develop our people for their creativity and commitment


Minimise our footprint through sustainable management of resources


MBS have a 9,000m2 under roof off-site modular construction facility located in Smithfield NSW – ideally positioned close to the M4 and M7 motorway networks.

The large Smithfield facility provides MBS with considerable flexibility to build volume orders of repetitive design modules as well as custom projects.

The facility includes the MBS head office, stores, FrameCAD assembly area, spray booth, welding bay, undercover off-site modular construction area and considerable hard stand for storage. Our facility is always available for client inspection.