A Class Building and Construction is a duplex builder based in Wollongong, serving homeowners, investors, and developers across Illawarra. We specialise in custom duplexes, dual-occupancy homes, and knockdown-rebuild duplex projects throughout the region. With a strong understanding of local planning requirements and site conditions, we guide clients from initial feasibility through to handover.
A duplex gives you options that a single dwelling cannot. Live in one side and rent the other, house a family member while maintaining independence, or generate two rental incomes from one block of land. For investors, a duplex development often compares well against buying two separate properties in terms of entry cost and return.
Wollongong and Illawarra experience consistent rental demand, and well-located duplexes hold their value. If your block is underutilised, it is worth finding out what is possible to bring out its full potential.
Some of the best duplex opportunities in the Illawarra are sitting on blocks with older homes that have run their course. A knockdown rebuild lets you clear the site and replace one ageing dwelling with two modern homes.
We manage the entire process from demolition through to handover, including certifiers, planners, and trades.
Illawarra is not always an easy place to build. Coastal blocks, escarpment sites, sloped lots, and tight infill properties each present their own complications, and Wollongong City Council has specific planning rules that need to be understood early on. Getting that wrong costs time and money.
We have been building in this region long enough to know what to expect. We work with local architects, town planners, engineers, and certifiers who know it too, which means the approval process runs more smoothly and there are fewer surprises on site.
We build across Wollongong, Figtree, Woonona, Bulli, Thirroul, Austinmer, Shellharbour, Albion Park, Kiama, and throughout the South Coast.
We talk through your goals, your block, and what you are hoping to achieve.
We take a proper look at the site and give you a straight answer on what is and is not possible.
We bring in the right architects and consultants to develop a design that works for your block and your budget.
We handle the DA or CDC process and keep things moving.
We manage the full construction and keep you updated on progress throughout.
Two finished homes, ready to go.
Scott and Rob have been building in Illawarra since 2004, with over 45 years of combined experience between them. A Class Building and Construction is a licensed builder and member of the Master Builders Association, with full Home Warranty Insurance, Contract Works, and Public Liability cover.
We offer fixed-price contracts so there are no surprises on cost, and we have established relationships with local architects, town planners, engineers, and certifiers, built over more than 15 years of building across the region. Custom home builders at heart, we can bring a unique perspective to your duplex build, making it the perfect solution for your lifestyle and budget.
If you have a block in Wollongong or Illawarra and you are wondering whether it could work for a duplex, get in touch. We can talk through what your site might accommodate, what the approval process looks like, and what a realistic budget could be before you commit to anything.
Contact A Class Building and Construction today to get the conversation started.
It depends on the size, site conditions, design complexity, and finish level. A flat-block side-by-side duplex will cost less than a double-storey split-level on an escarpment site. We give tailored cost guidance after an initial consultation.
Suitability depends on zoning, lot size, frontage, setbacks, and Wollongong City Council’s development controls. Some blocks that look right on paper have complications, and some that seem too small can still work with the right design. We assess feasibility early.
Most projects require either a Development Application through Wollongong City Council or a Complying Development Certificate. We work with planners and certifiers to manage whichever pathway applies.
The terms are often used interchangeably. Dual occupancy is the planning term used by councils and covers a range of configurations. The distinction matters most at the approval and ownership structure stage.
Torrens Title gives each dwelling its own separate land title so each can be sold or mortgaged independently. Strata creates individual ownership within a shared scheme. Torrens is generally simpler and preferred by buyers and investors, but whether it is achievable depends on your block and local planning rules.
For the right site and budget, yes. Two income-generating properties from one land purchase often compare well against buying separately. We have built our own duplexes in Illawarra, so we can have a real conversation about what the numbers look like on your project.
Typically nine to fourteen months from design to completion, depending on design complexity, site conditions, and approvals. Knockdown rebuild projects add time at the front for demolition.
Yes. We manage the full process, including demolition, planning, approvals, and construction. If your current home is sitting on a block that could accommodate a duplex, it is worth a conversation.
In the unlikely event anything is ever wrong, we guarantee to be there.
We have built across the Wollongong region for over 15 years.
“A Class team are great at what they do. Scott and Rob go above and beyond on all their jobs while delivering amazing work. Would Highly recommend them for any construction work. Great service, knowledgeability, skill, attention to detail and value.”
Booking a building consultation is the perfect way to meet our team and get answers about building your dream home. At your consult, our friendly and experienced builders can advise you on everything from planning and design to cost and budgets and can use this time to begin developing a detailed quote and plan of attack that meets your needs.
