Subletting Meaning: Subleasing Commercial Premises In Australia

If you’re leasing a shop, office, warehouse or studio and circumstances change, subletting can feel like a practical solution. Maybe you’ve outgrown your space, your business has gone more online, you’re downsizing costs, or you simply have unused rooms that could be generating income.

But subletting is one of those areas where a “quick fix” can turn into a legal headache if the paperwork isn’t right. In Australia, commercial leasing arrangements usually have strict rules about who can occupy the premises, what the landlord must approve, and what happens if something goes wrong.

Note: This article is general information only and isn’t legal or financial/tax advice. Retail leasing and consent requirements can differ between states and territories, and your rights will depend on the wording of your head lease and the facts of your situation.

In this guide, we’ll walk you through what “sub letting” means in a commercial context, how subletting typically works under Australian commercial leases, the key legal risks to watch for, and the documents that can help protect your business.

What Is Subletting (And What Does “Sub Letting” Mean In Commercial Leasing)?

At a practical level, subletting is when you (the tenant) allow another business or person (the subtenant) to occupy all or part of your leased premises, usually in return for rent.

In other words, the meaning of “sub letting” is: you keep your lease with the landlord, but you create a separate agreement with a subtenant to use the space.

This is different from:

• Assignment of lease (where you transfer your lease to a new tenant, and you may exit the arrangement entirely, depending on the terms and landlord consent); and
• Licensing/space sharing (where you grant a more limited permission to use space, often with less exclusive rights than a sublease).

Subletting can be a great commercial tool, but it’s not “informal” just because it happens between two businesses. If you sublet without following the lease rules, you may be breaching your lease and risking serious consequences.

Who Are The Parties In A Subletting Arrangement?

Most subletting arrangements involve three parties, even if only two sign the sublease:

• Landlord: the owner (or head lessor) of the premises.
• Head tenant (you): the business that holds the original lease with the landlord.
• Subtenant: the party who occupies under the sublease.

A key point many businesses miss: even if your subtenant pays rent on time and looks after the premises, you are usually still responsible to the landlord under the head lease.

Can You Sublet A Commercial Lease In Australia?

In many cases, yes - but it depends on the wording of your lease and whether you obtain the right consents.

Most commercial leases in Australia either:

• prohibit subletting entirely;
• allow subletting with landlord consent (common); or
• allow subletting in limited circumstances (for example, only part of the premises, or only to certain types of businesses).

This is why it’s so important to check your lease before you negotiate anything with a potential subtenant. If you’re unsure what your lease permits, a commercial lease review can clarify your rights and restrictions before you accidentally step into a breach.

Landlord Consent: What It Usually Involves

Where consent is required, the process often involves:

• formally requesting consent in writing;
• providing details about the proposed subtenant (business name, ABN/ACN, proposed use, financials in some cases);
• landlord conditions (for example, a deed of consent, updated insurance certificates, or limits on permitted use); and
• payment of landlord legal costs (often allowed under the lease).

Be careful about timing. Landlords may take time to assess a subtenant (especially in retail centres or higher-risk industries), and your lease may set deadlines for providing information.

Retail Leases vs Commercial Leases: Why The Difference Matters

If your premises are covered by a state or territory retail leases regime (for example, in a shopping centre, or certain “retail” uses), there can be additional rules around disclosure, consent, and landlord obligations. These rules vary by jurisdiction, and whether they apply can depend on the location of the premises and the nature of the business being run there.

Even where retail leasing laws apply, you should still expect that you’ll need a properly drafted sublease. Many businesses use a tailored retail sublease agreement to ensure the terms match the head lease and reflect retail-specific risks (like trading hours, fit-out requirements, and centre rules).

Subletting vs Assignment vs Licence: Which Option Fits Your Situation?

If your goal is “someone else takes over this space”, subletting is only one of a few legal pathways. Choosing the wrong one can cause real problems - including accidentally granting someone stronger rights than you intended.

1) Sublease (Subletting)

A sublease is usually appropriate when:

• you want to keep your head lease (for example, because it’s a great deal);
• you may return to the space later;
• you want to sublet part of the premises (like one office or a studio room); or
• you want more control over who is in the premises and on what terms.

In many subletting arrangements, you remain “in the middle” - responsible to the landlord, and effectively acting as the landlord to your subtenant.

For this, a tailored commercial sublease agreement is typically the core document that sets out rent, bond, outgoings, term, and usage rules.

2) Assignment Of Lease

An assignment is usually appropriate when:

• you want to exit the premises entirely;
• the new tenant will deal directly with the landlord going forward; and
• the landlord is willing to approve a full transfer.

Assignments often require landlord consent and formal documentation. If you’re assigning, you may need a deed of assignment of lease so everyone is clear on when responsibility transfers and what obligations continue (if any).

3) Licence / Space Sharing

A licence is often used where:

• you want to share space without granting exclusive possession;
• the arrangement is short-term or flexible;
• you want the ability to control access and house rules more directly.

Many coworking-style arrangements (or “desk rental” setups) are better suited to a licensing structure than a sublease. In that case, a Property Licence Agreement may be the more appropriate document.

The right structure depends on your lease terms, your landlord’s position, and how much legal control you need over the arrangement.

Key Legal Issues And Risks When Subletting Commercial Premises

Subletting can reduce costs and keep your business flexible - but it also creates layered legal risk because you have obligations “up” to the landlord and obligations “down” to the subtenant.

Here are some of the major issues to think about before you sublet.

1) Subletting Without Consent Can Be A Lease Breach

If your lease requires landlord consent (or prohibits subletting) and you proceed anyway, you may be in breach of your lease. Depending on the lease terms and the severity, this can lead to:

• a formal breach notice;
• legal costs;
• termination of the lease; and/or
• loss of goodwill if you’re forced to relocate quickly.

Even if the landlord is “fine with it verbally”, you generally want consent properly documented.

2) You Usually Stay Liable Under The Head Lease

This is one of the biggest subletting traps for small businesses. In many cases:

• your subtenant pays you; but
• you still must pay the landlord (even if the subtenant doesn’t pay you).

Similarly, if the subtenant damages the premises or breaches building rules, the landlord may pursue you, not them.

This is why it’s important to:

• set clear obligations in the sublease (including repair obligations and indemnities);
• collect a bond/security where appropriate; and
• ensure the subtenant’s permitted use aligns with your lease.

3) “Permitted Use” And Outgoings Must Be Clear

Your head lease will often limit what the premises can be used for (the “permitted use”). If your subtenant operates outside that use, it can place you in breach.

Likewise, commercial leases commonly require the tenant to pay “outgoings” (like council rates, water charges, owners corporation fees, and building management costs). If you sublet, you need to be crystal clear about:

• who pays which outgoings;
• how those amounts are calculated and billed; and
• what happens if outgoings increase during the term.

Note: GST and outgoings can have tax and accounting implications that vary depending on your circumstances. Consider getting tax/accounting advice alongside legal advice before you finalise figures in a sublease.

4) Fit-Out, Alterations And Make-Good Can Create Disputes

If your subtenant makes changes to the premises, you’ll want to ensure:

• the landlord has approved any alterations required to be approved;
• the subtenant restores the premises if necessary; and
• the sublease is consistent with your “make-good” obligations under the head lease.

This matters because at the end of your head lease, the landlord will look to you to deliver the premises in the required condition - even if it was your subtenant who made the mess.

5) Insurance And Risk Allocation

Subletting can affect your insurance position, particularly where you have public liability insurance tied to occupancy and usage. You may need to:

• notify your insurer;
• require your subtenant to hold certain insurance;
• ensure the landlord’s insurance requirements under the head lease are still satisfied.

A well-drafted sublease will also deal with responsibility for damage, incidents, and claims (so you’re not unfairly carrying the risk for someone else’s operations).

What Should Be In A Sublease Agreement? (A Practical Checklist)

If you’re going to sublet, you want the agreement to reflect the head lease and your real-world arrangement - not just a generic template.

While every deal is different, most subletting arrangements should address the following.

Core Commercial Terms

• Parties: make sure the legal names match ABN/ACN details.
• Premises: clearly describe whether it’s the whole premises or only part (and attach a floor plan if needed).
• Term: the start and end date, plus any renewal options (and whether renewal depends on the head lease).
• Rent: amount, frequency, increases, and how GST is handled.
• Bond/security: bond amount, bank guarantee (if any), and conditions for deductions and return.

Alignment With The Head Lease

• Landlord consent: whether it’s required and whether it has been obtained.
• Permitted use: consistent with the head lease, plus any extra house rules (noise, storage, signage).
• Outgoings: who pays what, and the process for invoicing and reconciliation.
• Repairs and maintenance: who handles wear and tear vs damage, and reporting obligations.
• Make-good: what condition the subtenant must return the premises in at the end.

Risk Management Clauses

• Insurance: minimum insurance requirements and proof of currency.
• Indemnities: allocating responsibility if the subtenant causes loss or claims.
• Default and termination: what happens if rent isn’t paid or the subtenant breaches.
• Dispute management: practical steps to resolve issues early.

Because subletting creates overlapping obligations, it’s also worth thinking ahead about what you’ll do if the relationship needs to end early. Depending on your lease and situation, you might need lease termination advice so your exit plan doesn’t accidentally breach your head lease or trigger unexpected costs.

Key Takeaways

• Subletting usually means you stay as the tenant under the head lease, while your subtenant occupies under a separate agreement with you.
• Whether you can sublet depends on your lease terms, and many commercial leases require landlord consent before any subletting can occur.
• Subletting is not the same as an assignment or a licence - choosing the right structure matters for your risk and control.
• Even if you sublet, you’re commonly still liable to the landlord for rent, damage, and compliance with the lease.
• A tailored sublease should cover rent, outgoings, permitted use, repairs, insurance, make-good, and what happens if either party needs to end the arrangement.
• Getting the documents and consent process right upfront can help you avoid disputes, unexpected costs, and lease breaches later.

If you’d like help with subletting your commercial premises, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.