
Duplex Construction
Gold Coast Duplex Builder
CRAFTING HOMES THAT WORK SMARTER FOR YOU
At Seeka Constructions, we don’t just build duplexes, we create smart, thoughtful spaces where families thrive, investments can grow, and land is used to its full potential.
As a family-owned, Master Builder-certified company, we bring heart, care, and craftsmanship to every build. With decades of experience and a reputation for honesty and excellence, Seeka is the trusted name in duplex construction across the Gold Coast.
We understand what’s at stake when you invest in building. That’s why we treat every duplex as if it were our own - because for us, it’s not just about bricks and mortar. It’s about creating something of lasting value: a home, a legacy, an opportunity.

Why Choose Us for Your Next Duplex Project?
LOCAL BUILDERS YOU CAN TRUST – BACKED BY EXPERIENCE
Choosing Seeka Constructions means working with a local, experienced Master-builder who understands Gold Coast council requirements, market trends, and modern design. We don’t just build duplexes, we build smart, flexible living spaces that suit your land size, lifestyle and budget goals.




With Seeka, you’ll benefit from:
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Over 25 years of industry experience
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Expert knowledge in dual occupancy approvals and planning
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Fixed-price contracts for peace of mind
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Custom or pre-designed duplex plans
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A dedicated team managing every stage from design to handover
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High-quality finishes and contemporary features
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Full transparency and support throughout your build journey
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Firsthand experience with multiple of our own duplex developments
Whether you’re a growing family, a savvy investor, or someone dreaming of flexible living options, we know how to bring your multi-dwelling vision to life with quality craftmanship, affordability, and long-term value in mind.

What is a Duplex?
MAXIMISE VALUE WITH SEEKA
A duplex is two fully self-contained dwellings built on same block, either attached or detached, each functioning as an independent residence with its own amenities. These dwellings can be held under a single title or subdivided into separate titles, allowing for individual ownership, sale, or rental.
More than just practical, a duplex is a great way to double your blocks potential. Offering flexibility for families, added value for investors, independence for relatives, or an income stream through dual rental or sale.
What's Required for a Duplex Build?
MAXIMISE THE POTENTIAL OF YOUR BLOCK WITH DUPLEX CONSTRUCTION
Not every block is suitable for a duplex, but we’ll help you figure it out. Factors like zoning, frontage, access, and lot size all play a role in determining feasibility.
As a guide, duplex developments generally require a block that is at least 500 sqm, subject to local council regulations.
If you're considering building a duplex, Seeka Constructions can assist you in navigating the planning requirements and ensuring your project aligns with the Gold Coast City Council's regulations. Our team can assess your site and provide recommendations on whether a duplex is right for you.
Zoning
Your land must be correctly zoned to allow duplex construction
Setbacks & Coverage
The build must comply with setback limits & site coverage rules
Parking
Each dwelling must have off-street parking meet council requirements
Approvals
Development & building approvals are required before construction




Our Process
FROM CONSULTATION TO COMPLETION
At Seeka, we make the duplex process clear and stress-free. Our step-by-step service ensures nothing is missed.
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Initial Consultation - Start with a personalised consultation where we assess your block, understand your goals, budget and outline your options.
BuildPrep By Seeka - We’ll help you select or customise a duplex plan that suits your site and lifestyle. We prepare drawings, gather approvals, and manage council submissions and provide you with Fixed Price.
Selections & Contract - You’ll choose your preferred materials, finishes, and colour schemes. We’ll finalise documentation and provide a fixed-price building contract.
Construction & Supervision - Our experienced builders and site supervisors bring your duplex to life with quality workmanship and attention to detail at every stage.
Handover & Support - We complete final inspections, hand over the keys, and ensure you’re supported post-build.

A duplex is more than just a clever
layout—it’s a lifestyle upgrade and a smart financial decision.
A duplex construction project offers flexibility and future-proofing in one beautifully designed package. Whether you want to, keep family close while maintaining independence, generate income by renting one side, downsize and sell or lease the other, or build wealth through development– a duplex build with Seeka is the way to go!
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How do I know if my block is suitable?Every site is different. Talk to us and we’ll assess your block based on council zoning, size, and access to determine your options.
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Can I customise the design?Absolutely! We offer both pre-designed and custom solutions to suit your vision, block shape, and requirements.
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What’s the difference between a new home build and a duplex build?A new home build is typically a single dwelling, whereas a duplex includes two separate residences under one roof or on the same lot.
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Can I own just one side of a duplex?Yes. If subdivided, each side can be individually titled, allowing for separate ownership, sale, or rental.
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What types of spaces do you fit out?We specialise in fit-outs for offices, boardrooms, retail spaces, warehouses, industrial units, health and well-being clinics, and more. Each project is tailored to suit the specific requirements and functionality of the space.
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How do I get started with a commercial fit-out?Getting started is easy. Simply contact us for a consultation. We’ll discuss your goals, assess your space, and develop a tailored plan and quote that aligns with your vision, timeline, and budget.
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What does a Commercial Fit-Out Builder do?A Commercial Fit-Out Builder transforms empty or outdated commercial spaces into functional, branded environments. At Seeka Constructions, we manage the entire process — from design and council approvals to construction and handover — ensuring every element supports your business goals.
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Do you offer design and project management services?Yes. As a full-service Commercial Fit-Out Builder, we provide design consultation, detailed planning, scheduling, and on-site project management to ensure a smooth and efficient process from start to finish.
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How can a fit-out support our brand?Your workspace should reflect your business identity. We work closely with clients to incorporate brand colours, materials, and design elements into the fit-out, making sure your commercial environment is on-brand, inspiring and functional for staff and visitors a like.
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How much does a new deck or refurbishment cost?Deck building costs can vary significantly based on several factors, including deck size, height, material choice, site access, and any additional features like balustrades or privacy screens. Refurbishments may cost less than a complete rebuild, depending on the condition of your existing structure. At Seeka Constructions, we provide fully itemised, transparent quotes with no hidden fees. During your consultation, we’ll assess your needs, offer design ideas, and provide an accurate estimate tailored to your project. → Get a free quote today and discover what’s possible within your budget!
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Can you help with multi-level or complex deck designs?Absolutely. We have extensive experience designing and constructing multi-level and architecturally complex decks. These projects often require extra attention to structural integrity, council compliance, and creative layout solutions—especially when built into sloping blocks or integrated with indoor-outdoor transitions. Our team is equipped to manage every aspect, from concept and engineering to finishes and final inspection. → Let’s talk through your complex project—we’re ready to help!
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Do you offer warranties or guarantees on your work?Yes, all of our deck builds and refurbishments come with workmanship guarantees and relevant material warranties. We use only trusted materials and follow best practices to ensure long-term durability. You’ll receive a detailed breakdown of our warranty coverage with your quote and contract. At Seeka Constructions, our reputation is built on quality, and we stand behind every deck we create. → Get peace of mind—contact us to learn more about our guarantees!
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What types of decking materials do you offer?We specialise in both timber and composite decking across the Gold Coast and Brisbane. Timber options—such as merbau, spotted gum, and blackbutt—are perfect for a classic, natural aesthetic. Composite decking, on the other hand, is ideal for homeowners seeking a low-maintenance, long-lasting solution that doesn’t sacrifice visual appeal. Our team will help you choose the right material based on your budget, usage needs, style preferences, and climate conditions. Whether you're after warmth and character or durability and ease, we have decking options tailored to your lifestyle. → Explore your material options— Book a design consultation today!
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Why choose Seeka Constructions for your deck project?Seeka Constructions stands out in the Brisbane and Gold Coast markets for our full-service, client-focused approach. We combine complete design flexibility, active project management, fast turnaround times, and full transparency—all delivered by a highly qualified team. We believe every deck should be an extension of your home: functional, beautiful, and built to last. Whether you're dreaming of a brand-new composite entertaining deck or looking to revitalise a tired timber structure, our expert craftsmanship and tailored solutions ensure you're in good hands from day one. → Book your consultation to experience the Seeka difference!
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Is council approval needed for a new deck?In many cases, especially for raised or large decks, council approval is required before construction can begin. This applies to both Brisbane City Council and Gold Coast City Council, depending on your location. The good news is that Seeka Constructions handles this process for you. We take care of all necessary permits, drawings, and documentation, ensuring your project is compliant with local building codes (or work with a team you elect). Our team is experienced in navigating council regulations, so you can enjoy a smooth, stress-free experience from the outset. → Let us handle approvals for you – schedule a consultation today!
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How long does it take to build or refurbish a deck with Seeka Constructions?The timeline for building or refurbishing a deck varies depending on the size of the project, the materials used (such as timber or composite), and the complexity of the design. On average, smaller deck projects are completed within 4 to 8 weeks. For larger, multi-level decks or those requiring structural modifications, it may take a little longer. At Seeka Constructions, we pride ourselves on setting realistic timelines and sticking to them. During your initial consultation, we’ll walk through your space, understand your goals, and provide a clear project schedule—so you know exactly what to expect and when. → Ready to get started? Contact us today to book your free consultation!
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What’s included in a Seeka Constructions deck build?Our premium deck building service includes everything you need to create a stunning, functional outdoor space. This includes: a personalised design consultation, material selection guidance, full structural framing, installation of timber or composite decking boards, integrated features (like stairs, handrails, or lighting), protective finishes, and a final quality check. Every deck we build is backed by our expert craftsmanship, transparent communication, and attention to detail. We treat your home like our own—ensuring a flawless finish that adds value and lifestyle appeal. → Discover what's included and start planning your new deck today!
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Can you repair or refurbish an old deck?Yes, Seeka Constructions offers comprehensive deck refurbishment services throughout Brisbane and the Gold Coast. If your current deck is looking worn, weathered, or structurally unsafe, we can assess it and recommend the most cost-effective solution—whether that’s targeted repairs, a full rebuild, or something in between. Our refurbishments often involve replacing damaged boards, strengthening the subframe, upgrading finishes, and bringing your deck up to modern safety standards. → Contact us now for a free deck inspection and refurbishment quote!
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What happens if unexpected issues arise during the renovation?We do not allow for unforeseen structural, plumbing, or electrical issues within this package, as they are outside the scope of work. If any such problems arise, they will be assessed at the discretion of the lead builder and may require an inspection by a specialist designer or tradesperson, such as engineers, waterproofers, or pest inspectors. In some cases, these issues may impact the eligibility of your home for this package. No need to worry, though! Our custom build team has extensive experience in remedial work and complex renovations. If your home falls outside the scope of this package, we can provide alternative solutions to help bring your renovation vision to life, whether through our Small Home Renovations package or a fully custom renovation solution tailored to your needs.
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Is the pricing fixed, or will there be variations?Pricing is fixed based on the inclusions of the package, meaning there are no hidden costs. If you choose upgrades, additional work, or unforeseen site variations arise, these will be discussed and quoted before proceeding.
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How long does a Small Home Renovation typically take?Project timelines may vary depending on the scope, but most base level Home Makeovers take between 4-8 weeks from commencement. Factors like material availability, client-driven changes, and unforeseen site conditions may impact timelines, but our team will keep you informed throughout the process.
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What is different between our Home Makeover Packages compared to our Custom renovation services?Our Home Makeover Packages provide a streamlined and cost-effective solution for interior updates. Unlike our Custom Renovation service, which allows complete flexibility in design, materials, and scope, this package is designed to deliver high-impact improvements with a faster turnaround and a fixed price. Key Differences: Home Makeover Packages vs. Custom Renovations Home Makeover Packages – A tailored yet efficient package that focuses on internal updates without structural changes. It’s a fast, cost-effective process with a flexible scope, an extensive range of selections, and fixed pricing. Custom Renovations – A fully bespoke service that allows complete flexibility in design, materials, and scope, cosmetic and structural. What’s Not Included in Small Home Renovations This package is designed for internal updates and does not cover: Structural Changes – Wall alterations, extensions, or plumbing layout reconfigurations/additions. Asbestos Removal & Mould Remediation – Must be addressed by specialists before renovation begins. Structural Damage – Repairs beyond cosmetic updates. Plaster Patching – Limited to re-plastered bathrooms; does not include repairs for pre-existing dents, plaster bubbles, or areas where electrical elements have been moved. Floor Levelling – Adjustments may be required if existing flooring is uneven. Smoke Detectors – Installation or compliance upgrades may be necessary for outdated smoke alarms. Ceiling or Wall Insulation – Not included in our scope of work. External Works – Landscaping, pools, driveways, pathways, roofing, and façade renovations are not covered. Optional Upgrades & Adjustments (Additional Cost) While our base package covers all the essentials for an interior refresh, we offer additional upgrades to enhance your renovation: Minor Electrical Adjustments – Relocating outlets and light fixtures within reason. Plumbing Modifications – Adjustments to accommodate new fixtures and layouts. Custom Cabinetry Alterations – Storage solutions and refinements within the existing footprint. Upgraded Fixtures, Fittings & Finishes – Premium selections for a high-end result. Take a look at our base scope in our package guide—note that this package can be fully customised to suit your home’s size, budget, and renovation requirements. If you’ve already completed certain updates, like flooring or bathroom renovations, we can tailor the scope to focus on what’s left to complete your vision.
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Can I change the layout of my home with this package?This package does not include wall removals, extensions, or major structural reconfigurations. However, we can adjust cabinetry, fixtures, and fittings to enhance space efficiency and functionality within the existing layout. Need a Structural Reno? Contact us today to talk to our Custom Renovations team- We can adapt anything to suit your budget and project goals.
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Can I make changes once the renovation has started?No, all selections must be finalised during the two-week planning period before work begins. Any changes after the final design meeting will impact the start of the job and may result in losing your scheduled spot in the production timeline. To ensure a smooth process, we encourage careful planning and final decision-making before construction starts.
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Can I select my own finishes and materials?Yes! Our pre-selected finishes are chosen for durability, quality, and modern appeal, ensuring a streamlined process. If you'd like something different, premium upgrade options are available to further personalise your space.
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What is the payment structure for the renovation?Our payment structure is staged to align with project milestones: Deposit: 5% to secure your renovation slot and initiate material orders Commencement Payment: 20% due at project start Progress Payment 1: 30% due at the first major milestone Progress Payment 2: 30% due at the second major milestone Final Payment: 15% due upon project completion, ensuring full satisfaction with the final result All payment terms will be detailed in your contract for transparency.
Contact Us to Start Your Next Duplex Project
Book a free, no-obligation site visit with our team
Ready to explore a duplex project? Get in touch with Seeka Constructions today for a no-obligation consultation in the Gold Coast or Brisbane. We’ll walk through your space, talk through your ideas, and help you understand what’s possible—before you commit to anything. It’s the simplest way to gain expert insight, clear direction, and confidence from the very beginning of your renovation journey.
Our biggest advice would be — just meet them. Once we sat down and talked it through, we knew we were in good hands. It’s the kind of decision you feel confident in once you’ve had that first conversation.
~ Our Vista Clients