building a duplex on the south coast

How Long Does It Take Building a Duplex on the South Coast NSW?

Building a duplex is an exciting journey that offers the benefits of dual living and investment opportunities. But one of the most common questions we receive at Reef View Homes is: How long does it take to build a duplex? While the timeline can vary based on design, site conditions, and council approvals, this guide will walk you through the key stages of the process.

1. Planning and Approvals (3-6 Months)

Before construction begins, extensive planning is required. This includes:

  • Design Phase: Finalising your duplex plans to meet local council regulations and your specific needs.
  • Council Approvals: Submitting development applications (DA) or complying development certificates (CDC), depending on your location and project scope.
  • Site Preparation: Conducting soil tests, surveys, and necessary demolitions.

The timeframe for approvals depends on local council processing times and the complexity of your design.

2. Pre-Construction and Site Preparation (1-2 Months)

Once approvals are in place, the pre-construction phase begins. This involves:

  • Engineering & Certification: Obtaining structural engineering plans and final certifications.
  • Site Preparation: Clearing the site, excavation, and laying the foundation.

3. Construction Phase (6-9 Months)

Building a duplex typically follows these key stages:

  • Slab/Foundation (1 Month): Laying the concrete slab or footings.
  • Framing (1-2 Months): Constructing the timber or steel frame.
  • Lock-Up Stage (1-2 Months): Installing roofing, windows, doors, and external cladding.
  • Fit-Out (2-3 Months): Internal work, including plumbing, electrical, plastering, and cabinetry.
  • Final Touches (1-2 Months): Flooring, painting, and landscaping.

4. Handover and Final Inspections (1-2 Months)

Once construction is complete, a final inspection is conducted to ensure everything meets building codes and quality standards. Then, it’s time for the official handover, where you receive the keys to your brand-new duplex.

Total Estimated Timeline: 12-18 Months

While each project is unique, a standard duplex build with Reef View Homes generally takes around 12-18 months from design to completion. Factors such as weather, council approvals, and material availability can influence the schedule.

Why Choose Reef View Homes for Your Duplex Build?

At Reef View Homes, we specialise in custom duplex designs that maximise space, functionality, and investment potential. Our experienced team ensures a seamless process, from approvals to handover, delivering high-quality homes tailored to your vision.

If you’re considering building a duplex on the South Coast, contact Reef View Homes today for expert advice and a personalised consultation.

FAQs

How long does it take to build a duplex on the South Coast NSW?
The construction process typically takes 9 to 12 months, depending on factors like site preparation, council approvals, weather conditions, and builder availability.

What council approvals are needed before building a duplex?
You’ll need Development Approval (DA) or a Complying Development Certificate (CDC) from the local council. The approval process can take 3 to 6 months, depending on the complexity of the project.

What factors can delay the duplex construction timeline?
Common delays include council approvals, bad weather, material shortages, and changes to the design or scope during construction.

Can I speed up the duplex building process?
Yes! Choosing a CDC approval instead of DA, working with an experienced builder, finalizing designs early, and securing financing before construction starts can help speed up the process.

How much does it cost to build a duplex on the South Coast NSW?
The cost varies based on size, finishes, and site conditions, but a standard duplex can range from $700,000 to $1.2 million. Getting a detailed quote from a local builder will give you a more accurate estimate.

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