
What Do Bathroom Renovations Cost in the Lower North Shore? Depending on the size, style, and complexity, a professional bathroom renovation ranges from $25,000 to $ 50,000 or more in areas such as Mosman and Neutral Bay. Heritage properties or significant layout changes can increase costs. Key Price Drivers: Bathroom size Demolition & asbestos removal Plumbing or layout changes Materials & finish quality Local Insight: Homes in Mosman and Cremorne often have older infrastructure, meaning that extra waterproofing or plumbing may be needed — which we handle seamlessly. Q: What's the cheapest type of bathroom reno? A: Cosmetic upgrades (no plumbing changes) are cheapest, starting around $20K. Q: How do you quote? A: We give fixed-scope, transparent quotes with line-item breakdowns.