Wollongong's Leading Duplex Builders
200+ Projects Completed
Turnkey Duplex Development from $850K | Expert Service Across Wollongong & Illawarra
- Master Builders Australia Approved
- Generate Dual Rental Income from Day One
- Fast Equity Growth: Avg $300K+ Value Uplift
- Fixed-Price Contracts—No Hidden Surprises
- Inspections at Every Stage
- FREE 60-Minute Duplex Feasibility Check
Build Your Duplex with Wollongong's Trusted Master Builder
Proud Master Builders Association members serving Wollongong, Illawarra and South Coast NSW since 2001.
Trusted by 300+ investors | 30+ years building excellence | Fully licensed & insured
Ready to Maximise Your Block's Value?
Over 300 investors have trusted us to deliver quality duplex projects across Wollongong and greater NSW. Let's discuss what's possible for your property.
- Turnkey Service: We Handle Design, Approvals & Construction.
- Local Expertise: Deep Knowledge of Wollongong Councils.
- Fixed-Price Guarantee: Your Budget Protected.
⚡ Limited Availability: Book Your FREE Duplex Assessment (Only 3 Slots Left This Month) →
South Coast's #1 Choice for Duplex Development
Whether you’re an investor seeking maximum returns or a family planning multi-generational living, we make duplex building simple. One builder, one contract, complete peace of mind, from initial design through to final handover.
“The journey to your dream home is just as important as the finished result, built with trust, care, and vision.”
— Keiron Moore, Managing Director
Why Choose CKS Projects For Your Duplex Build?
True Turnkey Service, We Handle Everything
From initial design and council approvals through to demolition, construction, and subdivision, one builder, one contract, complete peace of mind. You focus on the investment returns while we manage every detail.
Maximise Your Investment Returns
Smart duplex design that generates dual rental income, faster equity growth, and stronger long-term returns. Our in-house specialists know how to extract maximum ROI from your block while minimising construction costs.
Exceptional Value for Your Investment
Quality without overpaying. Transparent pricing. Duplex homes from $850K-$2M.
Proven Wollongong Duplex Specialists, Not Just Another Home Builder
We've refined the duplex process through hundreds of successful builds across NSW. Our team specialises in dual-occupancy development, so you benefit from proven systems, not trial-and-error approaches that cost you time and money.
The Team That Makes Duplex Building Simple
Led by Managing Director Keiron Moore our team of qualified builders, designers, and project managers has delivered 200+ custom homes across the South Coast since 1998.
Our qualified builders, designers, and dedicated project managers handle everything, so you don’t chase architects, engineers, or council approvals. One experienced team. One point of contact. Zero headaches for you.
"CKS Projects delivered exactly what we needed: a quality duplex that attracts premium tenants and generates strong rental returns. Both residences rented within two weeks at above, market rates. The fixed-price contract meant no budget surprises, and the turnkey process was genuinely stress-free. Best investment decision we've made."
— Marcus & Jennifer, Fairy Meadow
Duplex Investors
Duplex Investors
Your Duplex Investment Starts with a FREE Feasibility Check
At CKS Projects, we’ve been helping Illawarra property owners unlock their blocks’ potential for over 30 years. From Fairy Meadow to Shellharbour, we understand Wollongong councils, coastal building requirements, and South Coast investment opportunities better than any out of area builder.
See Real Duplex Results from Real Investors
Every block is different. Every investment outcome is unique. Browse our portfolio of completed duplex developments and see real results: construction costs, final valuations, rental yields, and equity gains. This is what’s possible when you work with duplex specialists.
Real Duplex Projects. Real Investment Outcomes. Real Reviews.
Your Questions Answered
From initial design through to moving in, most custom homes take 12-18 months:
– Design & approvals: 3-4 months
– Construction: 8-12 months
– Final inspections & handover: 2-4 weeks
Timeline varies based on home complexity, council approval timing, and weather. We provide a detailed schedule during your consultation and keep you updated throughout.
We specialise in the South Coast of NSW including the Illawarra, Shoalhaven, Eurobodalla and Sapphire Coast. Our deep local knowledge of council requirements and building conditions in this area is one of our key strengths.
Building outside our core service area? Contact us to discuss – we may be able to help.
Absolutely! We work with many excellent local architects and designers. We can:
– Build from your architect’s plans
– Provide design-and-build service with our in-house team
– Collaborate with your designer to ensure buildability and budget alignment
Whether you bring your own plans or work with our design team, we ensure the final result is beautiful, functional, and built to the highest standards.
Our clients have the option to select our services for a professional interior designer/ selection specialist to assist in all selections, design aspects and colour choices for your new home right down to the furnishings if so desired.
We recommend getting financial advice on what you can afford before embarking on this journey, we need to know this so we can advise you if your budget and dreams align!! We will be upfront and honest with you so you don’t waste your time and money designing a home you can’t afford to build.
This obviously depends on the scale of the renovation works; however we find that if there are no areas of the home left untouched and with adding extra rooms to the home generally speaking it may be more cost beneficial to knock down and rebuild. In most cases renovation works will expose some underlying issues with the existing house which ultimately results in additional unforeseen cost to the owners, like termite damage or foundation issues, electrical or plumbing issues, if your existing home is old or run down it would also be more beneficial to knock down and rebuild in the long run.
Starting from scratch gives you a blank canvas to design your dream home that is more suited to your lifestyle and needs rather than trying to adapt an existing home with its current layout and limitations.
I recommend this type of project when the existing home is no longer suitable or desirable due to factors such as age, condition, layout and you want to maximise the location.
You can customise the design of the new home to meet your needs and preferences— with options for size, layout, style, and materials.
It can allow you to start fresh with a modern, energy-efficient design that may help you save money on utility bills and maintenance costs in the long run. A new home allows you to have greater control over the design which can improve your quality of lifestyle.
Four key differences:
1. Local South Coast expertise (we know this region inside out)
2. Fixed-price contracts with transparent processes (no cost blow-outs)
3. Full project management with single point of contact (stress-free for you)
4. MBA approved with rigorous quality standards (peace of mind)
5. Personalised custom design (every home is unique to your family)
We’re not the cheapest builder – we’re the best value builder for quality-focused
families who want a stress-free building experience.
Not necessarily. We can help in several ways:
– Build on land you already own
– Knock-down rebuild on your existing property
– Provide advice on land selection before purchase
– Assess potential blocks for building suitability
Many clients come to us before purchasing land. We offer pre-purchase site assessments to help you avoid costly mistakes and find the perfect block for your dream home.
CKS Projects is a design and construction business that specialise in custom new home builds, we encourage you to make us your first point of contact, that way we can establish your needs and desires and get you started on the exciting journey of designing your new home. We work closely with our designers so we can provide you with support and suggestions on your plans from a professional builder’s perspective and make your designs are realistic to your budget.
No problem, as long as time permits and councils will allow it, we can make changes. Being a custom home builder specialist, this allows us the flexibility to make changes, we host regular site meetings to discuss any change request as we understand the importance of delivering the house of your dreams.
Yes, we encourage you to visit as we will host regular site meetings throughout the build with our clients to allow you to see the project evolve, we can also arrange an appointment on request with one of our representatives, you just need to let us know when so we can book this in.
We have a duty of care for all people entering the work site, so as long as you are accompanied by one of our representatives at all times during your visit, we can facilitate your request.
As our homes are architectural custom-built homes. A square metre rate can be very difficult and generally does not apply to us, this can change due to the level of finishes and the design criteria. No two homes we build are the same which means the m2 price is different for each home being built.
However, we do have other ways we can determine the expected cost of your custom dream home from any concept design saving you time and money designing a home over your budget.