What does it cost to extend a house in the Sydney region?

How much do home extensions & additions cost?

Some home extension builders will quote you a standard price per square metre for new work. After reading this article you will understand that there are many factors to consider, not just the size of the project!

The reality is that first floor additions and large home extensions in greater Sydney will cost anywhere from $150,000 to well over $1.5 million, depending on your wish-list and budget…

How have 1st floor home addition prices changed over the years?

The House Extension & Renovation Cost (HERC) Index is built from a sample of actual home extension & addition projects. Click on a project below for details.

Brick home
(North Shore)

Brick Semi
(Eastern Suburbs)

Weatherboard home
(Western Suburbs)

Brick Semi
(Eastern Suburbs)

Brick/Rendered home
(Northern Districts)

Californian Bungalow
(North Shore)

Why fixed price matters

Your architect or builder will likely give you a “ballpark” estimated building cost to extend your home. While this is generally a good starting point, you do not want to be stung with costs for items which were not included in the price. Attention to detail before you agree terms with your Builder will allow you to maintain your budget without incurring unexpected costs…

Completed home addition projects by price range

Projects
$150k-$350k

View here

Projects
$350k-$550k

View here

Projects
$550k-$750k

View here

Projects
$750k +

View here

Want to talk with an expert?

Take control of your home renovations budget by engaging a Company with the experience and capability to provide a fair estimate of total cost – with a fixed price guarantee.
Contact us to discuss your ideas or Request a free designer visit