This tool will help you estimate the cost of your house extension accurately and easily.
House Extension Cost Calculator
How to Use the House Extension Cost Calculator
To calculate the cost of extending your house, follow these steps:
- Enter the area of the extension in square meters.
- Select the type of flooring, wall finish, and roof.
- Enter the number of windows and doors you want in the extension.
- Check the box if you’d like to include a $2000 cost for necessary approvals.
- Enter the percentage for labor costs.
- Click the Calculate button to get the estimated total cost.
How It Calculates the Results
The calculator estimates the total cost based on the parameters provided:
- Area: The size of the extension in square meters.
- Flooring: The cost per square meter for the selected type of flooring.
- Wall Finish: The cost per square meter for the selected type of wall finish.
- Roof: The flat cost for the selected type of roof.
- Windows: Each window adds an additional $200 to the cost.
- Doors: Each door adds an additional $500 to the cost.
- Approvals: A flat fee of $2000 if required.
- Labour: The total percentage of the base cost for labor fees.
Limitations
Please note this calculator provides an estimate and the actual costs may vary based on various factors such as:
- Region-specific costs and regulations
- Additional structural or design complexities not accounted for in this basic calculator
- Unforeseen material cost changes
Use Cases for This Calculator
Calculate the Total Cost
Enter the dimensions and other relevant details of your house extension project to get an accurate estimate of the total cost involved, including materials, labor, and any additional expenses.
Estimate Material Costs
Input the type and quantity of materials needed for your house extension, such as bricks, cement, wood, and roofing, to receive a breakdown of material costs to help you plan your budget effectively.
Determine Labor Costs
Specify the number of workers required for your house extension project and the estimated duration to calculate the labor costs involved based on standard industry rates and project complexity.
Compare Cost Scenarios
Adjust the parameters of your house extension project, such as size, materials, and finishes, to compare different cost scenarios and find the most suitable option that fits your budget and requirements.
Include Permit and Inspection Fees
Add permit fees and inspection costs to your house extension project calculations to ensure you account for all necessary legal and regulatory expenses that may impact your overall budget.
Factor in Design and Architectural Fees
Consider design and architectural fees by entering details such as floor plans, elevations, and other design requirements to get a comprehensive cost breakdown reflecting the design complexities of your house extension.
Account for Contingency Funds
Add a percentage for contingency funds to your total cost calculation to account for unforeseen expenses or project scope changes that may arise during the construction of your house extension.
Save and Print Estimates
Save the detailed cost estimates for your house extension project to revisit or print them for reference and sharing with contractors, architects, or other parties involved in the planning and implementation process.
Adjust for Geographic Location
Factor in regional variations in material and labor costs by selecting your geographic location to get a more accurate estimate tailored to the specific market conditions of your area for your house extension project.
Get Expert Consultation
Request expert consultation based on the calculated cost estimates for your house extension project to receive personalized advice and recommendations to help you make informed decisions and optimize your budget planning.