---
title: "KDR Cost Calculator — Knockdown Rebuild vs Renovation | Free Estimate"
description: "Free KDR cost calculator for Australia. Compare knockdown rebuild vs renovation costs with full breakdown."
source: KnockdownRebuildCost
sourceUrl: https://kdrcost.com/calculator
lastUpdated: 2026-05-31
citationUrl: https://kdrcost.com/calculator
---

# KDR Cost Calculator

Free KDR cost calculator for Australia. Compare knockdown rebuild vs renovation costs with full breakdown.

Get an instant cost estimate for your knockdown rebuild project. Compare it side-by-side against a major renovation.

This calculator estimates the total cost of a knockdown rebuild in your area, including demolition, site preparation, the new build, council approvals, holding costs (rent and storage during the build), and commonly missed expenses like fencing, driveways, and landscaping.

Costs are adjusted based on your city, block conditions (slope and soil), build quality, and whether asbestos removal is required. When you choose to compare against renovation, we estimate the equivalent renovation cost using per-square-metre rates for your selected quality tier.

Estimates are indicative only and based on publicly available data. Actual costs vary based on site conditions, builder, and specifications.

© 2026 KnockdownRebuildCost. A Hustle Ventures product.

### Where is the property?

## How this calculator works

#### Guides

#### Company

## Key Points

- KDR Process Guide
- KDR Costs by City
- KDR vs Renovate
- Demolition Costs
- How We Calculate
- Data Sources
- Privacy Policy
- Terms of Use

---
*Source: [KnockdownRebuildCost](https://kdrcost.com/calculator)*