Illawarra's Custom Building Specialist

Design and Build or Use Your Own Plans: Which Option is Right for You?

July 8, 2024

When embarking on a home construction project, one of the first decisions you'll need to make is whether to opt for a design and build service offered by a professional custom home builder or to procure your own plans and then find a builder to bring them to life. Both options have their advantages and considerations, and understanding the differences between them can help you make an informed decision that best suits your needs and preferences.

Design and Build: A Tailored Approach

Choosing a design and build service means engaging with a professional single team of builders and designers from the beginning and working collaboratively to bring your home to life. This approach offers several benefits:

  1. Expertise and Guidance: Working with a professional design and build company bring years of experience and expertise to the table, guiding you through every step of the process. From functional design features to selecting the right materials to navigating building codes and regulations. This expertise helps to ensure a cohesive and functional design. For example, we often come across issues when building to plans which require a change to the design to ensure structural or aesthetic functionality. Many of these issues could easily be resolved with a professional builder’s consultation during the design phase and if they do arise with the design and build pathway these small redesigns would be the design and build companies responsibility to resolve not yours. 
  2. Budget Control: Engaging a design and construction company gives you greater control over your budget. They will work together to ensure that your needs and desires are achievable within your allocated budget. This can help avoid expensive redesigns and plan changes which can cause cost overruns during the project. This has never been more evident than during the cost increases over 2021/23 period with designers struggling to provide designs to suit a budget due to the skyrocketing materials and labour costs.
  3. Streamlined Process and Reduced Risk: By choosing a design and build service, you benefit from a streamlined and integrated approach to home construction. The same team that designs your home is responsible for building it, eliminating communication gaps and streamlining the decision-making process.

Using Your Own Plans: Flexibility

Alternatively, you may choose to engage directly with a designer and have your own plans or architectural designs drawn to use for your new home construction project. This option offers its own set of advantages:

  1. Greater choice: engaging a designer yourself to create your plans and then finding a builder to complete the construction phase gives you a greater choice in both. This means that you will be able to use a designer or builder who styles and designs matches perfectly with your own tastes. It also provides you with the ability to obtain multiple quotes which may provide some cost benefits. 
  2. Cost Savings: If you are prepared to do the “leg work” yourself and are willing to engage directly with designers, engineers, surveyors, geotechnical engineers, hydraulic engineers, planners, certifiers, builders and local councils then procuring your own plans may save you some hard-earned money.

Choosing the Right Option for You

Ultimately, whether to opt for a design and build service or use your own plans depends on your individual needs, preferences, and priorities. Consider factors such as expertise, budget, level of leg work, timeline when making your decision.


At Murphy Group Construction we offer both design and build services as well as the flexibility to work with your pre-existing plans. Our experienced team is dedicated to helping you bring your dream home to life.


Ready to take the next step? Contact us today to discuss your project and explore your options further. Together, we'll create a home that exceeds your expectations and reflects your unique vision.

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