Three markets, bought without seeing the homes.
What is due diligence when buying property?
Due diligence is the work done to check a property and the sale terms before committing to buy. It combines legal checks, building reports, planning details and cost estimates. These checks help reveal limits, duties and gaps in what is known. An ad or a viewing alone cannot answer all those questions.
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Which questions does property due diligence answer?
The checks ask what you are buying, what duties come with it and whether the planned use is allowed. Legal checks cover the sale contract, title and recorded limits. The title is the record of ownership. Physical checks cover the building and site. Planning checks ask what uses and work are approved, and what may be developed nearby.
The Victorian checklist also covers floods, bushfires, boundaries, services and owners corporation duties. It includes contamination, meaning harmful substances in the land. These topics show why choosing a suburb is only part of the work. Not every topic applies to every home. A rural block, strata unit and freestanding house can need different checks and records.
Who provides the evidence for a purchase investigation?
Different records and experts supply different facts. A conveyancer explains the legal papers. An inspector checks parts of the building they can reach. The council provides planning details, and a strata search covers the shared scheme's records. Putting all the results in one file does not make one check replace another.
An ad's claim also differs from evidence of that claim. Advertising a renovation does not prove that the work has approval. A rent estimate does not show that someone has signed a lease at that rent. The date, source and limits of each finding help show what is known. They also help show which questions remain open.
How does due diligence differ from a building and pest inspection?
A building and pest report gives physical findings within the booked scope. Due diligence brings those findings together with legal, planning and financial details. A roof report does not explain an easement, which is a right to use someone else's land. A title search may show that right, but cannot price roof repairs.
The contract links findings to the buyer's rights. A poor inspection does not create an automatic right to walk away. Cooling-off law, agreed clauses and auction rules decide the options. The work is therefore about facts and remaining unknowns. Both matter before the buyer becomes bound, or before any agreed conditions have been met.
Illustrative example5 steps
Updating an ownership estimate when records reveal another cost
- Suppose an initial annual ownership estimate is $9,000 before finance and tax.
- A records review identifies a separate assumed $3,000 yearly shared-maintenance contribution.
- Revised known annual outgoings: $9,000 plus $3,000 = $12,000.
- The revised figure is $3,000 higher than the initial estimate.
- This shows the effect of one new fact, without assuming the investigation has identified every future expense.
For investors
Evidence connects a rental plan to a particular asset.
Suburb data cannot show all the duties and costs attached to one home. Due diligence joins wider research with the property's documents, condition and limits on use. For an investor, rent and cost estimates need checking too. Even a home that has been checked can bring unexpected bills or changes after the purchase.
Common questions
Questions about due diligence
Keep learning
Property is a complex world.
Due diligence is one piece of it. A purchase runs on deadlines, contracts and people working for different sides. Next, read about building and pest inspection, conveyancing and strata title.
Success stories
Clients who bought with a plan.
If you want help
How to choose a buyer's agency.
Four questions to ask any agency, with our answers.
Who pays you?
You do. Never a developer or the selling agent, who works for the vendor.
What is your track record?
Founded in 2018 by Arjun Paliwal, with 3,100+ completed purchases and 850+ five-star Google reviews. REB Buyer's Agency of the Year, winner 2023, 2024 and 2026.
How do you choose a property?
A QPIA-qualified strategist sets the plan. Every shortlisted property passes our 20-point due diligence.
What happens after settlement?
Portfolio reviews, and a Portfolio Wealth Blueprint for what comes next.