Second Storey Extensions: How Much Do They Cost?

Typically, second storey extensions are usually for newly constructed homes who want to add an additional room to their home to accommodate a new second floor. A second story extension can add a high degree of value to your property, but there are a few things you need to keep in mind. 

How Can I Build a Second Storey Extension?

Suppose you plan to make an extension on your existing building. The first step is to consult a building contractor for an estimate. An experienced building company can advise you of all of the costs associated with building your extension.

If you live in a home built in the past century, it may be possible to add on through the use of beams that have been in place on the original building since then. The first floor will usually be removed, and the beams will be used to extend the ceiling. A new foundation will also need to be secured around the new addition.

Is a Second Storey Extension Worth Doing?

A 2 storey extension has the potential to increase the value of your property. The viability of a second storey extension depends upon the difficulty of carrying out the construction. If you live in a modern building, a second storey extension is likely to be cheaper and worthwhile. But if you live in an older building, it is likely that the 2 storey extension will require a complete reconstruction of your ground floor. Older buildings may not have foundations strong enough to support the extension. 

Can I Extend Above a Single Storey Extension? 

A 2 storey installation can take anywhere from several weeks to several months, depending on the length of the beams that will be used. Some neighbourhoods have restrictions on building heights. Areas such as Byron Bay have a three-storey building construction limit, so read your local council’s rules about construction rules in your area. 

How Much Does a Second Storey Extension Cost?

The costs for a second storey extension can vary between $2000 and $20,000, depending on the difficulty of your existing structure. Generally, newer buildings with modern frameworks are easier to add extensions to. However, older buildings often require a complete re-structure of the ground floor to insert framework strong enough to support a second storey extension to your home. 

On average, the cost of adding a second storey extension is $1,500 – $3,000 per square metre. Again, the costs associated with adding a second storey extension to your home depend largely upon the difficulty of the task. If you’ve having a hard time estimating the cost of your envisioned second storey extension, contact your local builders and construction workers for a quote that involves all of your relevant costs. 

Can I Do a Second Storey Construction Myself? 

If you’re a certified builder, you may be able to carry out the construction yourself. Once your plan is approved by the council, you may be able to legally start the construction. Under Australia’s Strict Workplace Health & Safety measures, it’s important you adhere to their precautions to ensure the safety of you and future tenants of your property. If you don’t have your own equipment, the chances are that you will require earthmoving equipment and with this a concrete cutter. If you are a certified builder, you can also call your local construction authorities for more builders to assist you in your construction.