Sublet and Sublease Options in Australia: A Comprehensive Guide for Businesses

Leasing more space than you need can drain cash fast. On the flip side, outgrowing your current premises before the lease ends can stall your growth.

Subletting (also called subleasing) can be a smart, flexible way to right-size your footprint, reduce costs, or share space with another business-without walking away from your head lease.

In this guide, we’ll break down how subleases work in Australia, the key legal issues to watch, and a step-by-step process to set one up properly. We’ll also compare subleasing to other options like assigning your lease or using a licence to occupy, so you can choose the approach that fits your plan.

What Does “Sublet” Or “Sublease” Mean For Businesses?

A sublease is where you (the head tenant) grant another party (the subtenant) the right to occupy part or all of the leased premises for a period that is shorter than, and sits underneath, your own lease.

Legally, you remain bound to the landlord under your head lease. The subtenant is bound to you under the sublease. If the subtenant breaches the sublease, your landlord will still view you as responsible for the head lease obligations (rent, outgoings, repairs and make-good).

Subletting can help when:

• You have excess space and want to offset rent.
• You’re scaling gradually and need flexibility before committing to a larger site.
• You want to test a new market or co-locate with a complementary business.

Common use cases include office sublets, retail concessions within a larger store, or warehouse sub-leases where a tenant shares storage and loading areas.

Sublease vs Assignment vs Licence: Which One Fits?

There are three common ways to share or transfer commercial space. Each one has different legal and commercial consequences.

Sublease

You stay as the tenant under the head lease and grant occupancy to a subtenant under a separate agreement. You retain control and can tailor conditions, but you also retain liability to the landlord if the subtenant defaults. A formal Commercial Sublease Agreement sets out the terms between you and the subtenant.

Assignment

Assignment transfers your lease to a new tenant who steps into your shoes and takes over all rights and obligations for the remainder of the term. This is typically documented with a Deed of Assignment of Lease. If you want a clean exit from the premises, assignment may be more suitable than subleasing (subject to landlord consent and the head lease terms).

Licence To Occupy

A licence is generally a more flexible, short-term arrangement that grants permission to use an area without exclusive possession. It’s commonly used for shared desks, pop-ups or coworking arrangements. If you’re offering shared amenities and want more operational control, a concise Property Licence Agreement may be a better fit than a sublease.

How Do You Choose?

Ask yourself:

• Do you need to fully transfer your obligations (assignment), or just share space (sublease/licence)?
• Will the occupant need exclusive possession of a defined area (sublease), or flexible, shared use (licence)?
• Does your head lease permit subleasing or require assignment instead?

Weighing these factors early helps you avoid dead-ends and unnecessary costs.

Can You Sublet Your Commercial Premises?

Usually, yes-but only if your head lease allows it and the landlord consents in writing. Most commercial leases restrict subleasing without consent and set conditions you must meet first.

Check Your Head Lease

Look for clauses on “subletting,” “dealing with the lease,” or “assignment and subletting.” Key points to note:

• Consent requirement: Most leases say consent “must not be unreasonably withheld,” but still require a formal request.
• Conditions precedent: The landlord may require you to fix existing breaches, pay consent/administration fees, or provide subtenant references and financials.
• Permitted use: The subtenant’s use must align with the permitted use under your head lease (and, if applicable, any retail lease rules).
• Area and alterations: Plans may be required to show the subleased area, access paths, and any fit-out or works.
• Term limits: The sublease must end before the head lease expires (including any options you haven’t exercised yet).

Retail Lease Rules

If your premises is a “retail shop” under state-based retail leasing legislation, there are additional disclosure and consent rules. Timelines and required forms can vary by state and territory. Landlords may have obligations to act reasonably and promptly, and you may need to give the subtenant certain retail disclosures before they commit.

If your lease is approaching the end of its term, check any renewal rules and timeframes first. For example, where relevant, understanding lease renewal notice periods can influence whether a short sublease term is practical.

Speak With The Landlord Early

Flag your intentions early and outline the business case. Landlords are more receptive when they see a stable, compatible subtenant and a clear plan. They may also require a deed of consent that ties the subtenant to certain head lease obligations.

Before you submit a formal request, it’s wise to get a quick lease review so you know the exact hoops to jump through and any red flags to manage.

How To Sublease Your Space: Step-By-Step

1) Scope Your Sublease

Decide whether you’ll sublet part or all of the premises, the sublease term (it must be shorter than your head lease term), and the permitted use. Map out the exact area and access routes, plus any shared areas (kitchen, bathrooms, loading dock).

2) Prepare Your Consent Pack

Gather what your landlord will likely need to approve the sublease:

• Subtenant details, business overview, and financials or references.
• Draft floor plan and a marked-up plan showing the subleased area.
• Proposed sublease heads of terms (rent, outgoings, term, permitted use).
• Evidence of insurance arrangements (and whether the landlord will be noted as an interested party).

Having a clear, professional pack speeds up the consent process and reduces back-and-forth.

3) Draft The Sublease

Document the commercial terms and legal protections in a tailored Commercial Sublease Agreement. This should clearly allocate responsibilities for rent, outgoings, works, repairs, access and shared areas. It should also flow down relevant head lease obligations to the subtenant where appropriate.

4) Obtain Landlord Consent

Send your consent request and draft sublease to the landlord. They may issue a deed of consent for all parties to sign. Where the head lease requires it, a mortgagee’s consent may also be needed.

Many tenants choose a sublease review at this point to ensure the documents meet the landlord’s conditions and that key risks are addressed before signing.

5) Finalise Insurances And Handover

Confirm that the subtenant has adequate public liability and (where relevant) plate-glass and contents insurance in place and that any interested parties are noted correctly. Complete handover with access cards, induction materials, fit-out permissions, and building rules.

6) Manage The Relationship

Set up a simple system for collecting rent and outgoings, scheduling shared area cleaning, and reporting maintenance. Keep communication open. If your head lease includes make-good obligations, track subtenant works and reinstatement responsibilities from day one.

What Should Your Sublease Cover? Key Terms To Negotiate

Subleasing is not just a mirror of your head lease. You’ll want a clear, practical agreement that works in real life and protects your position if things go wrong.

Rent, Outgoings And Reviews

• Base rent: Set a fair market rent for the subleased area. If the space is irregular or includes shared facilities, be explicit about what’s included.
• Outgoings: Clarify which outgoings are passed through (e.g. utilities, cleaning, security, rates) and how you’ll apportion them (by floor area percentage or metered usage).
• Rent reviews: If you have scheduled increases in your head lease, consider aligning sublease review dates and methods to avoid margin squeeze.

Use And Fit-Out

• Permitted use: Keep it consistent with your head lease and building rules. Consider exclusivity and conflicts with neighbours.
• Fit-out and works: Require written approval (and landlord approval where required) for any works. Set standards for contractors, hours, safety and reinstatement.

Access And Shared Areas

• Access and hours: Define days and times, after-hours protocols, and security obligations.
• Shared facilities: Spell out how kitchens, bathrooms, meeting rooms and loading bays are used and maintained.

Repairs, Maintenance And Make-Good

• Repairs: Allocate day-to-day maintenance, equipment servicing and prompt reporting of issues.
• Make-good: Decide what reinstatement is required at the end of the sublease and whether any landlord dilapidation report will be relied on.

Compliance, Insurance And Indemnities

• Compliance: The subtenant should comply with laws, the head lease obligations that apply to the premises, and building rules (e.g. fire safety, signage, loading limits).
• Insurance: Require minimum cover levels, proof of currency and noting landlord’s and head tenant’s interests where appropriate.
• Indemnities and limitation: Include clear indemnities for damage the subtenant causes. If you agree to any liability caps, ensure they don’t conflict with your head lease.

Defaults And Termination

• Default triggers: Non-payment, unauthorised use, damage, illegal activity and persistent breaches should be covered.
• Step-in rights: If a serious breach occurs, you may need to lock out access or suspend services (in line with law and building rules). Document how this works.
• Early termination: Consider a right to terminate if your head lease ends, you lose a key right (e.g. access), or the landlord demands it under the consent deed.

Options And Renewals

Subleases typically cannot extend past your head lease term. If you hold an option to renew, avoid promising renewal to a subtenant unless your landlord has agreed and the timing works. If the premises is retail, also check any disclosure obligations around options.

Security And Guarantees

Decide whether you’ll require a bank guarantee or bond, personal guarantee from directors, or a parent company guarantee for the subtenant. Align security amounts and claim procedures with your head lease processes.

Disputes And Practical Processes

Include a simple disputes process, notice details, and practical housekeeping (e.g. who orders cleaning, how to book meeting rooms, how keys and passes are managed). Clear processes prevent small issues from escalating.

Exit Options If Subleasing Isn’t Right

If you need a cleaner exit or your landlord won’t consent to subletting, consider these alternatives.

Assign The Lease

Transfer your lease to a new tenant for the balance of the term via a Deed of Assignment of Lease. This is often used when you’ve sold your business or are relocating permanently. Note that landlords sometimes keep you on the hook unless the assignment is structured properly, so careful drafting and consent are essential.

Surrender The Lease

Negotiate a mutual termination with the landlord using a Lease Surrender Agreement. You may pay a fee or forfeit some security to secure a clean break. This can be faster than subletting in a soft market.

Rework The Deal With The Landlord

In some cases, restructuring rent, downsizing within the building, or extending the term in exchange for short-term relief can be better than subleasing. If you’re weighing a significant change, it helps to understand your options for breaking a commercial lease so you can negotiate from a strong position.

Key Takeaways

• A sublease lets you share or monetise excess space while you stay responsible to the landlord under your head lease.
• Choose the right structure for your goal: a sublease for exclusive possession of a defined area, a licence for shared, flexible use, or an assignment if you want to fully transfer the lease.
• Check your head lease carefully and obtain written landlord consent before subletting. Retail leases may add extra disclosure and consent steps.
• Document the deal with a tailored Commercial Sublease Agreement that covers rent and outgoings, permitted use, works, access, insurance, indemnities, defaults and make-good.
• Align sublease terms with your head lease to avoid gaps that could leave you out of pocket if the subtenant defaults.
• When a sublease isn’t the right fit, consider an assignment, a negotiated surrender, or reworking terms with your landlord instead.
• Getting a focused sublease review or broader lease review can save time, reduce risk, and smooth landlord consent.

If you’d like a consultation on subletting your commercial premises or exploring assignment and surrender options, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.