What Buyers Should Check During Commercial Property Due Diligence

Buying a commercial property is not simply a matter of checking the asking price and deciding whether the location looks promising. Due diligence is where buyers test the property’s legal position, income, physical condition, leases, operating costs, and potential risks before committing to the purchase. The aim is simple: make sure what you are buying matches what you have been told you are buying.

For anyone considering a commercial property for sale in Melbourne, due diligence should go well beyond the information provided in a listing or sales brochure. A property may appear to be attractive on paper, but it could have lease issues, unexpected expenses, planning restrictions, or maintenance liabilities that change the numbers considerably. Reviewing the right documents and obtaining professional advice can help uncover these problems before they become the buyer’s responsibility.

1.Check the Title and Property Details

Start with the legal identity of the property. Review the title to confirm ownership and identify registered interests that could affect how the property is used.

Look for:

• Easements and access rights
• Covenants and restrictions
• Mortgages or other registered interests
• Property boundaries
• Encumbrances affecting the land
• Planning and zoning information

It is also worth checking whether the property’s current use aligns with its planning permissions. A property being used for a particular commercial purpose does not automatically mean that every future use will be permitted.

2. Review Every Lease and Tenant Agreement

For an income-producing commercial property, the leases are among the most important documents in the due-diligence process. Do not rely solely on a rent roll or summary provided by the seller. Review the actual lease agreements and any amendments, extensions, or side agreements.

Pay attention to:

• Current rent and review mechanisms
• Lease commencement and expiry dates
• Renewal or option periods
• Outgoings and who is responsible for them
• Permitted use
• Assignment and subletting provisions
• Rent-free periods or incentives
• Existing disputes or defaults

A property with apparently high rental income may look very different once the upcoming lease expires, incentives are accounted for, or unrecovered outgoings are considered.

3. Verify the Financial Performance

Ask for financial records that show how the property has actually performed, rather than relying solely on projections. Review several years of available income and expense records, along with the current budget and any significant variations. Compare rental income against the leases to make sure the figures match. Other documents worth examining include:

• Outgoings statements
• Rates and land tax records
• Utility costs
• Insurance premiums and claims
• Property management fees
• Maintenance expenses
• Capital expenditure history

This information helps establish the property’s genuine operating position and identify costs that may not be obvious from the advertised figures.

4. Investigate the Building and Physical Condition

A commercial property can carry significant repair and replacement costs, particularly where major building systems are approaching the end of their life.

Arrange appropriate professional inspections to assess areas such as the roof, structure, electrical systems, plumbing, heating, and cooling, fire safety equipment and other major services.

For specialised properties, additional assessments may be necessary. The goal is not simply to find defects but to understand which issues require immediate attention and which ones could create substantial future costs.

5. Check Planning, Environmental and Compliance Issues

Planning restrictions can affect how a buyer operates, develops, or changes a commercial property. Confirm the zoning, permitted use and any relevant planning approvals before proceeding.

Depending on the history and use of the selected property, environmental checks may also be required. Industrial and older commercial sites can require closer investigation for contamination or hazardous materials.

Also check whether required safety, accessibility, fire, and building compliance obligations have been met, and whether there are outstanding notices or required works.

6. Look Beyond the Property Itself

Also consider the surrounding market and the property’s longer-term suitability. Start by comparing properties, vacancy levels, nearby development, transport access, competing businesses, and any proposed infrastructure changes that could affect the location. This in-depth assessment of the property actually matters because even a well-maintained property with solid tenants needs to make sense within its local commercial market.

Make the Decision Based on Evidence, Not Assumptions

Commercial property due diligence is ultimately about verifying the details behind the opportunity. Title records, leases, financial statements, inspections, planning information and operating costs each reveal a different part of the picture. The right checks will vary depending on the property, tenant structure, and intended use. Taking the time to investigate those details before signing or settling can give buyers a much clearer understanding of the asset, its obligations and the risks they are actually taking on.