Introduction to our Renovation and Extension Cost Guide
Beginning on a home renovation and extension project is an exciting journey that offers the opportunity to transform your living space into a reflection of your personal style and lifestyle needs. However, navigating the financial aspects of such a project can often feel overwhelming due to the myriad of factors that influence the overall cost. Whether you’re considering a modest update, a significant renovation, or an ambitious extension, understanding the potential investment required is crucial for planning and executing your project successfully.
This cost guide is designed to provide homeowners with a general overview of the cost associated with different types of home renovation and extension projects. From demolishing parts of an existing structure to adding a new double-storey extension, we’ve broken down the costs into three distinct scenarios that provide low, medium, and high examples that are tailored to different levels of finish quality and project complexity. Additionally, we’ve included pricing for various optional enhancements such as landscaping, garages, sustainable design elements, and smart home technology, allowing you to customise the guide to your specific needs and aspirations.
Our aim is to arm you with the knowledge needed to make informed decisions throughout your renovation journey. By understanding the factors that impact project costs, you can better align your vision with your budget, prioritise spending, and identify areas where you may want to invest more or find savings. Remember, while this guide serves as a valuable starting point, consulting with industry professionals for a detailed quote and expert advice is always recommended to ensure that your project not only meets your expectations but also adheres to local building codes and regulations.
Whether you’re just starting to dream about making changes to your home or you’re already in the planning stages, this cost guide is an essential resource for bringing your vision to life in a way that is both financially and practically feasible.
Understanding the Scenarios
In this guide, we answer the question ‘how much does a renovation and extension cost?’. By providing three scenarios to help homeowners envision and budget for their renovation and extension project. From low-cost updates focusing on basic functionality and aesthetics to high-cost transformations employing luxury finishes and custom design elements, our aim is to cater to a wide range of preferences and financial plans. Additionally, we’ve included optional add-ons like sustainable features and smart home systems, allowing for further customisation. It’s crucial to note, however, that actual costs may vary based on project specifics and unforeseen site conditions, underscoring the importance of professional consultations to align your vision with a realistic budget.
Scenario 1: 200m2 Renovation + 100m2 Extension – Single Storey
This scenario focuses on revitalising a 200m2 area with updated finishes and possibly reconfiguring spaces for better functionality, coupled with a 100m2 addition. It spans from budget-friendly updates using standard materials to high-end customisations, offering options for every homeowner’s vision and financial plan.
Scenario 2: 200m2 Renovation + 100m2 First Floor Addition
Ideal for those looking to expand upwards, this setup includes the renovation of the existing structure plus the addition of a new 100m2 living space above. This option explores the possibilities from functional improvements to premium transformations, ensuring that every layer of your home speaks volumes of luxury and comfort.
Scenario 3: Demolish Existing Rear, 100m2 Renovation + 150m2 Double Storey Extension
For homeowners aiming for a significant makeover, this scenario involves demolishing the existing rear, renovating a 100m2 space, and adding a 150m2 double-storey extension. It caters to various budgets and preferences, from basic overhauls to bespoke designs and finishes.
Additional Costs and Options
Our guide further details optional add-ons such as sustainable design features and smart home systems, providing flexibility to enhance your project based on specific needs and desires.
Final Considerations
While this guide serves as a foundation for budgeting, actual costs can fluctuate due to project specifics, material selections, and unforeseen site conditions. Collaborating with professionals for detailed quotes and assessments is pivotal to aligning your project with both your vision and budget effectively.
By presenting a structured overview of costs associated with different renovation and extension levels, we aim to empower homeowners to make informed decisions, set realistic expectations, and embark on their renovation journey with confidence.
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Scenario 1 : 200m2 Renovation + 100m2 Extension – Single Storey
Scenario Assumptions:
– Original 200m2 home renovated to update finishes, fixtures, and possibly reconfigure spaces without altering the structural footprint.
– Addition of 100m2 ground floor extension.
– Prices exclude GST, permitting and regulation costs.
Project Overview:
- Renovation Components: Kitchen, 2 bathrooms, laundry, and walk-in robe within the existing 200m2 footprint.
- Extension: Addition of a new 100m2 space at the rear of the home.
Renovation and Extension Costs
1. Low-Cost Scenario:
Focus on basic updates and functionality improvements using standard materials and off-the-shelf fixtures.
- Renovation Cost: $150,000 – $200,000
- Extension Cost (100m2 at basic finishes): $250,000 – $300,000
Total Estimated Cost: $400,000 – $500,000
2. Medium-Cost Scenario:
Enhanced quality finishes with some custom elements and improvements over standard specifications.
- Renovation Cost: $225,000 – $275,000
- Extension Cost (100m2 with better quality finishes): $350,000 – $400,000
Total Estimated Cost: $575,000 – $675,000
3. High-Cost Scenario:
High-end finishes, luxury appliances, and bespoke design elements throughout both renovated and extended areas.
- Renovation Cost: $300,000 – $400,000
- Extension Cost (100m2 with premium materials and custom design): $450,000 – $550,000
Total Estimated Cost: $750,000 – $950,000
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Scenario 2 : 200m2 Renovation + 100m2 First Floor Addition
Scenario Assumptions:
– Original 200m2 home renovated to update finishes, fixtures, and possibly reconfigure spaces without altering the structural footprint.
– Addition of 100m2 first floor addition over ground floor footprint.
– Prices exclude GST, permitting and regulation costs.
Project Overview:
- Renovation Components: Kitchen, 2 bathrooms, laundry, and walk-in robe within the existing 200m2 footprint.
- First Floor Addition: Creation of a new 100m2 living space & bedrooms above the existing ground floor.
Renovation and First Floor Addition Costs
1. Low-Cost Scenario:
Emphasis on functional improvements using standard materials and fixtures.
- Renovation Cost: $150,000 – $200,000
- First Floor Addition Cost (100m2 with basic finishes, including structural reinforcement): $300,000 – $350,000
Total Estimated Cost: $450,000 – $550,000
2. Medium-Cost Scenario:
Upgraded finishes and some custom elements for a more personalised touch.
- Renovation Cost: $225,000 – $275,000
- First Floor Addition Cost (100m2 with higher quality finishes and some custom features): $400,000 – $450,000
Total Estimated Cost: $625,000 – $775,000
3. High-Cost Scenario:
Premium materials, luxury appliances, and extensive bespoke design elements throughout.
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- Renovation Cost: $300,000 – $400,000
- Extension Cost (100m2 with premium materials and custom design): $500,000 – $600,000
Total Estimated Cost: $800,000 – $1,000,000
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Scenario 3 : Demolish existing rear, 100m2 Renovation + 150m2 Double Storey Extension
Scenario Assumptions:
– Rear of original dwelling demolished, remaining 100m2 of the dwelling home fully renovated. Assumed not restumping required.
– Addition of 150m2 double storey addition to the rear of existing dwelling. Note: Accessibility could be difficult & site constraints may apply – see below add-ons section.
– Prices exclude GST, permitting and regulation costs.
Project Overview:
- Renovation Components: Kitchen, 1 bathrooms.
- Rear Double Storey Addition: Includes 3 bedrooms, 2 bathrooms, open plan living/dining/kitchen, laundry and walk-in robe.
Demolition
- Demo of Existing & Removal: $10,000 – $20,000
1. Low-Cost Scenario:
Emphasis on functional improvements using standard materials and fixtures.
- Renovation Cost: $150,000 – $200,000
- First Floor Addition Cost (150m2 with basic finishes, including structural reinforcement): $337,500 – $405,000
Total Estimated Cost: $487,500 – $605,000
2. Medium-Cost Scenario:
Upgraded finishes and some custom elements for a more personalised touch.
- Renovation Cost: $$250,000 – $300,000
- First Floor Addition Cost (100m2 with higher quality finishes and some custom features): $475,000 – $525,000
Total Estimated Cost: $725,000 – $825,000
3. High-Cost Scenario:
Premium materials, luxury appliances, and extensive bespoke design elements throughout.
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- Renovation Cost: $350,000 – $400,000
- Extension Cost (100m2 with premium materials and custom design): $650,000 – $825,000
Total Estimated Cost: $1,000,000 – $1,250,000
Optional Add-Ons
- Outdoor Living Space: $10,000 – $50,000 depending on scale and complexity.
- Landscaping: $10,000 – $50,000 for basic to enhanced landscaping work.
- Sustainable Design Features: $5,000 – $40,000 for features like solar panels, water recycling systems, etc.
- Smart Home Technology: $2,000 – $20,000 for basic to advanced smart home systems.
- Structural Reinforcement: Necessary adjustments to the existing structure to support the new first-floor addition. This is included in the first-floor addition costs but can vary based on the specific engineering requirements.
- Accessibility and Site Constraints: (added cost for challenging sites): $5,000 – $20,000+
Note
- The provided cost estimates are based on general industry standards and can vary significantly based on specific project details, selections, and unforeseen site conditions.
- Engaging with construction and design professionals for a detailed quote is recommended for a more accurate and tailored budget for your project.
Don’t let the complexity of planning and executing a renovation and extension hold you back. Our expert team are on hand to guide you through every step, from initial concepts to the finishing touches, ensuring a seamless and stress-free process. We pride ourselves on our commitment to quality, attention to detail, and dedication to customer satisfaction.
TELL US ABOUT YOUR PROJECT & CONTACT US NOW
Are you asking how much will my renovation and extension cost? Take the first step towards your dream home today. Contact us to schedule a consultation and discover how we can make your renovation or extension project a stunning reality.