Sydney Projects
How Much Does It Cost to Build a Custom Home in Sydney in 2026?
How much does it cost to build a custom home in Sydney in 2026? Learn realistic cost per square metre, hidden costs, site costs, and budget planning tips.
TL;DR Building a custom home in Sydney is not a one-price answer. As a rough guide, many custom homes now sit around $3,000 to $5,500+ per square metre, with luxury or architecturally complex homes often going higher. A 200 square metre custom home can therefore move from roughly $700,000 to well over $1.1 million before land, major landscaping, pools, unusual site works, and high-end inclusions. The biggest cost drivers are not just size. They are site access, slope, soil conditions, engineering, approval pathway, finishes, wet areas, glazing, joinery, structural complexity, and how clearly the builder has priced the job. The safest way to compare builders is not by the lowest number. It is by checking what is included, what is excluded, what is provisional, and what could become a variat…