If you own a block of flats or a multi-unit property in Australia under a single title, the insurance structure you choose can leave you exposed to thousands of dollars in uncovered losses. A single policy covering the building structure and common areas is standard, but the details — tenant type, occupancy, and optional add-ons — determine whether a claim actually pays out. Misclassifying your property as strata when it’s a single-title block, or failing to declare short-stay guests, can void cover entirely.
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This article is general information only and does not constitute professional advice. For your specific situation, consult a qualified professional.
The difference between a block of units policy and strata insurance comes down to who owns what. If you hold the entire building under one title, you need a single block policy that covers the structure, common areas, and your liability as the sole owner. Strata insurance, by contrast, applies when each unit is separately owned and managed by a body corporate. Get this wrong and you could be paying for cover that doesn’t match your legal exposure. Here’s what you actually need to know.
What This Article Covers — And The One Term You Need To Understand First
Before we go further, there’s one term that keeps coming up in every policy document and broker conversation: block of units insurance.
What I tend to notice is that owners of smaller blocks — say four to six units — often assume their standard home landlord policy will stretch to cover the whole building. It won’t. A block policy is a different product with different limits and exclusions. If you’re looking for a practical way to monitor the property between tenancies, something like the Arlo Essential Wireless Video Doorbell can help you keep an eye on common areas and entry points, but it won’t replace the right insurance structure.
Block Of Units Vs Strata Insurance — What The Research Actually Reveals
The single most consequential decision you’ll make is choosing between block of units and strata insurance. The research from Insurance Business Mag makes this distinction clear: block of units insurance is for single-title properties where one owner holds the entire building; strata insurance is for strata-titled properties where each unit is separately owned. Misclassifying your property type can lead to coverage gaps that leave you paying out of pocket for major structural damage.
Here’s how the two policy types compare across the key factors that affect your pocket:
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| Factor | Block of Units Insurance | Strata Insurance |
|---|---|---|
| Title structure | Single title — one owner holds the entire building | Strata title — each unit separately owned |
| Who buys the policy | The single property owner | The body corporate or owners corporation |
| What it covers | Building structure, common areas, landlord liability | Building structure, common property, public liability for common areas |
| Contents cover | Owner’s contents only; tenants arrange their own | Not included; each unit owner arranges their own contents cover |
| Short-stay rentals | Excluded unless explicitly added | Excluded unless by-law permits and policy endorses |
| Rental income protection | Optional add-on (loss of rent, rent default) | Not applicable — individual unit owners arrange their own |
For a single-title block with all units on long-term residential leases, the building policy covers structure and common areas. Landlord insurance can then add loss of rent, rent default, and theft by tenant — but none of these are automatic. If you’re relying on that rental income to cover the mortgage, a tenant defaulting without rent default cover means you’re paying the mortgage from your own pocket until the property is re-let.
Three Mistakes That Cost Multi-Unit Owners Real Money
Assuming short-stay tenants are covered under a standard policy
Standard block policies typically do not cover short-stay or holiday rentals unless explicitly stated, according to Morgan Insurance Brokers. Short-stay guests increase turnover, wear, and liability risk. If you let a unit on Airbnb without confirming cover, a guest injury claim could land entirely on you. The fix: ask your broker for explicit written confirmation that short-stay use is covered, or request a specialist policy that includes it. If you manage multiple short-stay units, a smart lock for short-stay rental management can help control access and reduce liability, but it won’t fix a policy that excludes short-stay use.
Buying strata insurance for a single-title block
This is the most expensive mistake in the list. Strata insurance is designed for properties where each unit is individually owned and the body corporate manages common areas. If you own the whole building under one title and buy strata insurance, you may have no cover for the building structure itself — the policy assumes each unit owner insures their own unit. The correction process: contact a broker who specialises in multi-unit properties, confirm your title structure, and request a block of units policy. Do this before any claim arises, because a claim on the wrong policy type will likely be declined.
Ignoring rent default exclusions for known tenant issues
Rent default cover protects against tenant non-payment, but it may exclude known financial difficulties of a tenant at inception, as Insurance Business Mag notes. If you sign a lease with a tenant who has a history of late payments and then add rent default cover, the insurer may refuse the claim because the risk was known before the policy started. The fix: assess tenant financial history before offering a lease, and add rent default cover at the start of the tenancy — not after a problem emerges.
How To Structure Your Multi-Unit Insurance — A Practical Walkthrough
Confirm your title structure first
Before you buy anything, check your property title. If you hold the entire building under one title, you need block of units insurance. If each unit has its own title and there’s a body corporate, you need strata insurance. A conveyancer or property lawyer can confirm this in minutes. Getting it wrong means your policy may not respond when you need it most.
Map your tenant mix and occupancy types
List every unit and what it’s used for: long-term residential lease, short-stay holiday rental, or commercial tenancy. Each type carries different risks. For blocks with mixed use — say, three long-term rentals and one Airbnb — you may need a base block policy plus a separate short-stay endorsement or a specialist policy for the Airbnb unit. Morgan Insurance Brokers notes that owner-occupied units in a mixed block still fall under the single block policy for structure and common areas, but the owner-occupier must separately insure personal contents.
Decide which optional covers you actually need
Loss of rent covers lost income when a unit is uninhabitable after an insured event — fire, flood, storm. Rent default covers tenant non-payment. Theft by tenant covers damage or theft caused by the tenant. If you rely on rental income to cover costs, loss of rent is the most important add-on. If you’re in a market with high tenant turnover, rent default becomes more relevant. Each add-on costs extra, so weigh the premium against the income you’d lose without it.
Compare quotes from multiple insurers
Insurance Business Mag reports that some insurers compare up to eight policies to find the right rate for your property. Same-day quotes are available for most standard residential blocks. Getting multiple quotes helps ensure you’re not overpaying for cover you don’t need, or underinsuring because you picked the cheapest option without checking the exclusions. A broker who specialises in multi-unit properties can handle this comparison for you.
Watch for emerging rule changes on short-stay insurance
Australian state and territory governments are increasingly regulating short-stay rentals, and insurers are responding by tightening policy wording. Some insurers now require explicit disclosure of short-stay activity at application, and may exclude cover if they discover it later. If you operate short-stay units, check your policy wording annually — what was covered last year may be excluded this year. A broker can flag these changes before renewal.
Frequently Asked Questions
Can I use a standard landlord policy for a block of four units? ▾
What happens if I don’t tell my insurer about a short-stay tenant? ▾
Does block insurance cover damage caused by a tenant? ▾
Can I insure a single-title block with separate policies for each unit? ▾
How do I know if my policy covers flood damage? ▾
What’s the difference between loss of rent and rent default? ▾
Getting The Structure Right Now Saves Thousands Later
The research is consistent on one point: the most expensive insurance mistake for multi-unit owners isn’t underinsuring — it’s buying the wrong type of policy for your title structure. A single-title block insured under a strata policy leaves the building structure uncovered. A block policy that excludes short-stay use leaves you liable for guest injuries. The fix is straightforward: confirm your title, map your tenant mix, and compare policies with a broker who understands multi-unit properties. Do it before a claim, not after.
Remember: this article is general information only. For advice on your specific situation, speak to a qualified professional.
If this was useful, you might also want to read Building Insurance vs Content Insurance: What Every Aussie Homeowner Needs.
Sources and Further Reading
Home Insurance Renewal Tips Every Australian Should Know — Practical steps for reviewing your policy at renewal to avoid coverage gaps and premium increases.
Understanding Property Insurance for Community Built Housing — How insurance works for shared-ownership and community housing structures, relevant for multi-unit owners.
Insurance Business Mag (2024). Five Key Considerations For Insuring Multi-Unit Properties In Australia. 🔗
Morgan Insurance Brokers (2024). Insuring a Block of Units in Australia: What You Need to Know. 🔗
