What You Need to Know About Building Upwards

In today’s Australian property market, homeowners are constantly exploring innovative ways to maximise their living space and enhance the value of their properties. One way that has gained popularity recently is building second storey extensions. Lets have a look at some of the important points you need to know when planning to build upwards with a second storey extension.

Understanding Second Storey Extensions

A second storey extension is the process of adding a new level to an existing single storey home. The extension can span the entire structure of the house or be limited to specific areas, thereby leading to the creation of a split level home. This type of extension serves as an excellent strategy for homeowners looking to gain additional indoor living space without having to sacrifice their outdoor area.


Building a second storey extension can provide many benefits for the property and family who occupy it. Firstly, it can significantly increase the market value of your property, making it a worthwhile investment. Secondly, if designed well, can potentially provide access to captivating views that were previously unattainable from the ground level. Unlike ground floor extensions, second storey extensions allow homeowners to retain and enjoy their garden or backyard space without any compromises.

Legal Requirements and Regulations

Before starting construction on a second storey extension project, it’s vital to fully understand the legal requirements and building regulations applicable in your local region and state in Australia. These regulations typically include obtaining necessary development approvals and ensuring that your design complies with the Building Code of Australia. It’s also important to take into consideration local council regulations pertaining to issues like overlooking, overshadowing, and heritage restrictions.

Before Starting Your Project

There are several key factors that should be thoroughly considered before proceeding with the addition of a second storey. An essential step is to assess the structural integrity of your existing building to ensure it can support an additional level. Other important considerations include the cost, duration of construction, potential disruption to your daily life, and the possible impact on your neighbours.


The cost of implementing second storey extensions in Australia can vary greatly, depending on several factors such as the size of the extension, design complexity, and materials used. As a rough estimate, you could expect to pay between $1,800 and $4,000 per square metre. However, it’s crucial to remember that this is a significant investment, which can potentially lead to a considerable increase in your property’s value.

Choosing the Right Contractors

Choosing experienced and licensed professionals for your project is one of the most important decisions you can make. An architect or designer can assist in creating a design that not only meets your needs but also complies with all relevant regulations. In terms of the construction, a reputable builder will ensure that the construction is executed to the highest standard, thereby guaranteeing the durability and longevity of your extension.

To sum up, adding a second storey to your home can be a game-changing decision that provides additional living space, potential views, and a substantial increase in property value. By understanding the process, legal implications, and costs involved, you can make an informed decision about whether a second storey extension is the right choice for your home. With the right team of professionals supporting you, your vision of extending your home upwards can seamlessly transform into a reality.