Renovating or building across Sydney's North West means working with scale, acreage and bushfire requirements rather than heritage and strata. Kaiko Design explains what large-home projects in Castle Hill, Dural and Terrey Hills actually demand.

What does an interior designer in Sydney actually cost in 2025/26? Real fee ranges, project budgets by scope, what's included and what isn't — and how to think about the total investment before you hire.