Building a new home is exciting, but before construction can begin, there is one major piece of the puzzle that needs to be understood: how to finance new home construction.
Unlike purchasing an established property, financing a new build usually involves a construction loan, staged payments, detailed building documentation and a clear understanding of both construction and pre-construction costs.
From architectural plans and soil testing to structural engineering, energy reports, building approvals and construction documentation, there are costs that can arise before the first slab is poured.
Understanding these expenses early can help homeowners create a realistic budget, obtain suitable construction finance, and avoid unexpected financial pressure during the building process.
At Cyber Services Group (CSG), we work across the pre-construction process, helping homeowners, designers and builders coordinate many of the technical services required to move a residential project from design towards construction.
Here is our guide to understanding financing a new home construction project in Australia.
What Is a Construction Loan?
A construction loan is a type of home loan specifically designed to finance the construction of a new house or major renovation.
Unlike a standard home loan, where the lender generally provides the full loan amount at settlement, new home construction finance is usually released progressively as the building reaches agreed stages.
These staged payments are commonly known as progress payments or progressive drawdowns.
Depending on the building contract and lender, construction stages may include:
- Deposit
- Base or slab stage
- Frame stage
- Enclosed or lock-up stage
- Fixing stage
- Practical completion
Rather than paying interest on the entire approved loan from day one, borrowers will generally pay interest on the amount that has been drawn down at that point in construction, subject to their lender’s individual loan terms.
Because every lender and construction loan product is different, homeowners should discuss the exact structure, fees, interest calculations and lending requirements with their mortgage broker, lender or financial adviser.
Construction Finance Starts Before Construction
One of the biggest misconceptions about building a new home is that the major expenses begin when the builder arrives on site.
In reality, significant work can happen during the pre-construction stage.
Before construction can begin, a project may require services including:
- Building design and architectural documentation
- Feature and level surveys
- Soil testing
- Structural engineering
- Civil or stormwater engineering
- Energy efficiency reports
- Town planning
- Building certification
- Development approvals
- Building approvals
- Bushfire or flood assessments
- Hydraulic documentation
- Additional consultant reports
- Council fees and infrastructure charges
The exact requirements will depend on the property, proposed development and relevant local authority.
These pre-construction costs should be considered when establishing the overall budget for a new home.
How Much Does It Cost to Build a New Home?
One of the first questions homeowners ask is: How much does it cost to build a house?
Unfortunately, there isn’t one simple answer.
The cost of building a new home can vary considerably depending on factors such as the size of the house, location, site conditions, construction method, materials, level of finish, engineering requirements and complexity of the design.
Site conditions can have a particularly significant impact.
A relatively flat block with straightforward soil conditions may require a different structural solution from a sloping property, reactive soil site or property affected by flooding, bushfire, retaining requirements or difficult site access.
This is why completing appropriate pre-construction investigations early can be so valuable.
The more information available before construction pricing is finalised, the better positioned homeowners and builders are to understand the likely requirements of the project.
Don’t Forget Pre-Construction Costs
When establishing a new home construction budget, it is easy to focus entirely on the builder’s construction price.
However, homeowners should also consider the costs required to get the project ready for construction.
Depending on the project, these can include soil tests, surveys, engineering, energy assessments, certification, approvals and consultant fees.
There may also be costs associated with demolition, site clearing, temporary fencing, utility connections, retaining walls, landscaping, driveways, pools and other works that aren’t necessarily included within the main building contract.
When considering how much money you need to build a house, it is important to understand exactly what is and isn’t included within your builder’s quotation or contract.
Why Soil Testing Matters to Your Construction Budget
A soil test for a new house is an important part of the residential construction process.
A geotechnical or soil investigation provides information about the ground conditions on the site. This information can then assist the structural engineer in designing appropriate footings and foundations.
Different soil classifications and site conditions may require different engineering solutions.
For example, certain sites may require additional footing design, deeper piers or other structural measures.
This means the results of your soil test can potentially influence the structural requirements and cost of your new home.
Completing soil testing at the appropriate stage of pre-construction planning can therefore help provide more information before structural design and construction pricing are finalised.
Structural Engineering and Construction Finance
Structural engineering is another important component of preparing a new home for construction.
A structural engineer may design elements including:
- Footings and foundations
- Concrete slabs
- Structural framing
- Beams and columns
- Retaining walls
- Structural steel
- Bracing
- Tie-down requirements
The engineering requirements of a house can vary depending on the architectural design, site conditions, building materials and structural system.
From a budgeting perspective, understanding these requirements before construction begins can help reduce uncertainty.
This is why residential structural engineering and other technical documentation should form part of the wider pre-construction planning process.
Energy Reports and New Home Construction
New residential construction in Australia must also meet applicable energy-efficiency requirements.
Depending on the project and jurisdiction, an energy efficiency assessment or energy report may be required as part of the approval process.
Energy assessments consider various aspects of the building design, which can include insulation, glazing, orientation, building fabric, shading and other elements affecting thermal performance.
For homeowners, considering energy efficiency during pre-construction can also have longer-term benefits.
A well-considered energy-efficient home may require less energy to maintain comfortable indoor conditions, potentially reducing ongoing heating and cooling demand.
At CSG, residential energy reports form part of the broader range of pre-construction services available to help move projects towards approval and construction.
Building Approvals and Certification
Before construction can commence, the appropriate building approvals and certification generally need to be obtained.
The requirements will depend on the location, type of development and characteristics of the site.
This may involve a building certifier, council, engineers and other consultants reviewing documentation to ensure the proposed construction complies with applicable requirements.
From a financing perspective, this stage is particularly important because lenders may require various documents before allowing construction loan funds to be drawn.
Your lender or broker should provide a specific list of documentation required for your construction loan approval and progress payments.
Get Finance Pre-Approval Early
If you are planning to build a house, speaking with a lender or mortgage broker early can help you understand your potential borrowing capacity.
A construction loan pre-approval may provide an indication of how much you could potentially borrow, subject to the lender’s requirements and final assessment.
This can be extremely useful during the design stage.
Without a realistic understanding of the available budget, it can be easy to design a home that becomes difficult to finance or construct within the desired price range.
Having a clear financial framework allows the building designer, consultants and builder to make more informed decisions throughout the project.
Understand What Your Construction Loan Covers
Not every expense associated with building a house will necessarily be covered in the same way by a construction loan.
Different lenders have different requirements regarding items such as:
- Land purchase
- Building deposits
- Professional consultant fees
- Council fees
- Demolition
- Site preparation
- Landscaping
- Swimming pools
- Driveways
- Retaining walls
- Fencing
- Solar systems
- Additional upgrades and variations
Before committing to a project, ask your lender or broker exactly what can be included within your new construction financing and what expenses may need to be funded separately.
Allow for a Construction Contingency
Even with careful planning, construction projects can change.
Unexpected site conditions may be discovered. Materials can change. Homeowners may request upgrades. Engineering requirements can evolve as the documentation becomes more detailed.
For this reason, homeowners may choose to maintain a construction contingency rather than committing every available dollar to the initial building contract.
The appropriate contingency will depend on the project and individual financial circumstances, so this should be discussed with the relevant builder and financial professionals.
The key principle is simple: don’t assume the initial construction price represents every dollar you will spend before moving into the house.
Be Careful With Variations During Construction
Variations can have a major impact on a new home construction budget.
A seemingly small upgrade to cabinetry, flooring, lighting, plumbing fixtures or finishes can quickly become significant when repeated throughout an entire house.
More substantial changes can also trigger additional drafting, engineering, certification, materials and labour costs.
The best way to control variations is to make as many decisions as possible during the pre-construction stage.
The more resolved the design, engineering, specifications and selections are before construction begins, the easier it becomes to understand what is actually being priced.
Avoid Overcapitalising During the Design Stage
When planning a new home, it is easy to become focused on everything you would like to include.
Larger rooms, higher ceilings, upgraded glazing, premium finishes, extensive landscaping and additional features can all increase the overall project cost.
This is where pre-construction planning becomes particularly important.
Understanding the budget early allows the project team to identify where money is being spent and where changes could potentially be made before construction documentation is completed.
Making a design change on paper is usually far easier than making the same change once construction has begun.
Your New Home Budget Should Consider the Entire Project
When working out how much it costs to build a new home, don’t look at the house contract in isolation.
Consider the complete project.
Your total budget may need to account for:
Land + finance costs + design + consultants + approvals + construction + external works + landscaping + contingency.
Depending on your project, there may be other expenses as well.
Creating a comprehensive new home construction budget can give you a much clearer picture of the financial commitment before construction begins.
A Simple Construction Finance Checklist
Before starting your new home project, consider the following:
1. Understand your borrowing capacity: Speak with your lender or mortgage broker about construction finance and establish a realistic financial range.
2. Establish your total project budget: Consider construction as well as professional fees, approvals, external works and other project expenses.
3. Complete the necessary site investigations: Organise relevant surveys and soil testing so the design and engineering teams have appropriate site information.
4. Develop the building design: Work with your building designer or architect to create a home that responds to your site, lifestyle and budget.
5. Complete structural engineering: Obtain the required residential structural engineering documentation.
6. Complete energy assessments: Arrange the relevant residential energy report or energy efficiency assessment.
7. Obtain approvals and certification: Ensure the required documentation and approvals are in place before construction begins.
8. Finalise construction pricing: Make sure you understand inclusions, exclusions, provisional sums and potential additional costs.
9. Confirm lender requirements: Provide your lender with the documentation required to progress your construction loan.
10. Keep a contingency: Maintain appropriate financial flexibility for unexpected costs or changes.
Good Pre-Construction Planning Can Make Financing Easier to Manage
Building a new home involves considerably more than choosing a floor plan and finding a builder.
The process brings together construction finance, building design, soil testing, structural engineering, energy efficiency, certification, approvals and construction documentation.
When these elements are coordinated early, homeowners can enter construction with a clearer understanding of their project.
At Cyber Services Group (CSG), we provide a range of pre-construction services designed to help homeowners, builders and designers move residential projects towards construction.
From soil testing and structural engineering to energy reports and RPEQ engineering certification, our team can help coordinate essential technical services before the build begins.
Planning a New Home?
If you’re preparing to build and need assistance with the pre-construction process, talk to Cyber Services Group.
Our team can assist with residential structural engineering, soil testing, energy efficiency reports, RPEQ certification and pre-construction services, helping you get the technical documentation you need to take the next step towards construction.