Contracts & Costs

Whole Home Renovation Costs in Baulkham Hills: 2026 Guide

A practical 2026 guide to whole-home renovation costs in Baulkham Hills, including realistic price ranges, local cost drivers, approvals and sample budgets.

TL;DR In Baulkham Hills, a whole-home renovation in 2026 commonly starts at around $250,000 to $450,000 for a solid mid-range renovation where the existing footprint stays largely the same. If the project includes major structural changes, premium finishes, difficult access or an extension, a more realistic range is often $450,000 to $850,000+ . As a broad guide, many Baulkham Hills full-home renovations fall around $3,200 to $5,200 per square metre for substantial standard-to-good-quality work, and $5,200 to $7,500+ per square metre for complex or premium work. Final cost depends more on scope, site and hidden conditions than on floor area alone. What counts as a whole-home renovation? A whole-home renovation means improving most or all of the existing house rather than updating one room.…