Adding A First Floor To Your Home In Sydney: A Guide To First Floor Additions

first floor additions sydney

Adding A First Floor To Your Home In Sydney: A Guide To First Floor Additions

Adding a first floor to your home can be an excellent way to increase living space and add value to your property. In Sydney, where space is often limited, first floor additions have become a popular choice for homeowners looking to expand their living areas. This article will provide a comprehensive guide to first floor additions in Sydney, covering everything from planning and design to construction and costs.

Planning And Design

Before embarking on a first floor addition project, it is crucial to carefully plan and design the new space. Start by assessing your needs and determining the purpose of the additional floor. Are you looking to create more bedrooms, a home office, or a recreational area? Consider the layout and flow of the existing house and how the new floor will integrate with it.

Consulting with an architect or a building designer is highly recommended during the planning stage. They can help you create a design that maximises space, meets your requirements, and complies with local building regulations. Additionally, they can provide valuable insights on the structural feasibility of the project and suggest design elements that enhance the overall aesthetics of your home.

Obtaining Approvals

Once you have a design in place, you will need to obtain the necessary approvals before commencing construction. In Sydney, first floor additions typically require development approval from the local council. This process involves submitting detailed plans and documents outlining the proposed changes to your home.

It is essential to engage a professional draftsman or architect who is familiar with the local council’s requirements and can assist you in preparing the necessary documentation. They will ensure that your plans comply with building codes, zoning regulations, and any other relevant guidelines.


After obtaining the required approvals, it’s time to start the construction phase of your first floor addition. Hiring a reputable builder with experience in home additions is crucial to ensure a smooth and successful project. They will coordinate all aspects of the construction, including demolition (if necessary), structural work, and finishing touches.

During the construction process, it is essential to communicate regularly with your builder and stay informed about the progress. This will help you address any concerns or make necessary adjustments along the way. It is also advisable to visit the site regularly to ensure that the work is being carried out according to the approved plans and specifications.


The cost of a first floor addition in Sydney can vary significantly depending on various factors, such as the size of the addition, the complexity of the design, and the materials used. On average, homeowners can expect to spend between $2,000 and $4,000 per square meter for a first floor addition.

It is important to note that these figures are estimates, and the actual cost may vary. To get an accurate idea of the expenses involved, it is recommended to obtain quotes from multiple builders and discuss your budget with them. They can provide you with a detailed breakdown of costs and help you make informed decisions about the project.


Adding a first floor to your home in Sydney can be a fantastic way to create more living space and increase the value of your property. However, it is crucial to plan and design the new floor carefully, obtain the necessary approvals, and hire a reputable builder to ensure a successful project. By following these steps and considering the costs involved, you can transform your home and enjoy the benefits of a first floor addition.