How to Create a Sublease Agreement in Australia

Commercial space is a big commitment. If your business has more room than you need, or you’re relocating before your lease ends, a sublease agreement can be a smart, lawful way to reduce costs and keep flexibility.

In this guide, we’ll break down what a sublease is, when it makes sense for your business, the key clauses to include, and the steps to put a compliant subletting arrangement in place in Australia.

Our goal is to help you feel confident about the process so you can manage your premises strategically while protecting your rights under the head lease.

What Is A Sublease Agreement (And When Should You Use One)?

A sublease agreement is a contract where the original tenant (often called the head tenant) grants another party (the subtenant) the right to use all or part of the premises for a period that sits under the head tenant’s lease with the landlord. The head lease stays in place, and the head tenant remains responsible to the landlord.

Subleasing can be useful if you:

• Have surplus space (for example, you’ve downsized your team and want to sublet unused offices).
• Want to share rent and outgoings by bringing in a compatible business.
• Need to relocate but can’t assign your lease, and you want a stop‑gap arrangement until expiry.
• Test a collaboration (e.g. a pop‑up concession in part of your store) without committing to a full assignment.

Unlike an assignment, a sublease does not transfer your whole lease to someone else. You stay on the hook to the landlord, so it’s critical your sublease is carefully drafted and that the subtenant is reliable.

Sublease, Assignment Or Licence: Which Structure Fits?

Before you draft anything, decide if a sublease is the right structure compared with other options. Each approach carries different legal and commercial outcomes.

Sublease

You grant a portion (or sometimes the whole) of your premises to a subtenant for a defined time under your existing lease. You remain liable to the landlord for rent, repairs and compliance. This is flexible but requires tight flow‑down of head lease obligations.

Assignment

You transfer the remainder of your lease to a new tenant, who takes your place. Your landlord’s consent is normally required and often involves a formal Deed of Assignment of Lease. An assignment is cleaner when you want to exit the premises entirely, but consent conditions can be strict and you may still provide guarantees.

Licence To Occupy

A licence grants permission to use space without granting a formal leasehold interest. It can suit short‑term or shared use (e.g. hot desks or consulting rooms). However, calling something a licence won’t make it one if, in substance, the arrangement grants exclusive possession like a lease. This is one reason to get tailored advice so the document matches your intent.

Must‑Have Clauses In A Sublease Agreement

A strong sublease contract protects your cash flow and ensures your subtenant follows the rules you’ve already agreed to with the landlord. At a minimum, make sure your document covers the following.

1) Premises And Permitted Use

Define exactly what area is being sublet (attach a plan if part‑premises) and the permitted use. Align this with the permitted use in the head lease to avoid breaches.

2) Term, Options And Holding Over

Set the start and end dates, any options to renew, and whether holding over is allowed. The sublease term cannot go beyond your head lease term (including options) without the landlord’s agreement.

3) Rent And Outgoings

Specify base rent, review mechanisms (e.g. CPI or fixed increases), payment dates, and how outgoings are apportioned. If you’re subletting part of the premises, clarify the method for sharing utilities and services.

4) Bond, Bank Guarantee Or Security

Include a security structure that mirrors your head lease risk. Commonly, this is a cash bond or bank guarantee. Spell out claim conditions and return timing.

5) Repairs, Make‑Good And Maintenance

State who is responsible for day‑to‑day maintenance, damage caused by the subtenant, and end‑of‑term make‑good. This should flow down from your head lease obligations and ensure you’re not left with unexpected costs.

6) Access, Fit‑Out And Alterations

Set rules around fit‑out approvals, compliance with building and safety laws, and restoration obligations. Require the subtenant to obtain any approvals the landlord must give under the head lease.

7) Insurance And Indemnities

Align insurance obligations with the head lease (e.g. public liability, plate glass, contents) and ensure the subtenant indemnifies you for their acts or omissions. Consider requiring that both you and the landlord are noted as interested parties on policies.

8) Compliance With Head Lease

This is the core of a sublease. Incorporate and flow down relevant head lease obligations and provide the subtenant with a copy. Make it clear that any breach by the subtenant that causes a breach of the head lease is a breach of the sublease.

9) Landlord’s Consent

Most leases require you to obtain the landlord’s written consent before subletting. Your sublease should be conditional on that consent, and you should build in timing and cooperation obligations.

10) Defaults And Termination

Define default events, notice and remedy periods, and your rights to terminate if the subtenant fails to pay or comply. Include rights to re‑enter the sublet area and recover costs.

11) Dispute Resolution

Include a clear process for resolving disputes quickly, which can help maintain the relationship and avoid costly proceedings.

Get It Drafted Or Reviewed

A tailored Commercial Sublease Agreement helps you avoid gaps that can create expensive liabilities under your head lease. If the other party presents a document, a pragmatic sublease review can highlight risks before you sign.

Legal Requirements In Australia: Consent, Retail Leases And Compliance

Subletting is legal in Australia, but there are important requirements you need to tick off before you hand over the keys.

Landlord Consent

Most head leases prohibit subletting unless the landlord consents in writing. The lease will set conditions for consent (for example, the subtenant’s financial standing, use of the premises, and form of sublease). If you proceed without consent, you risk breaching your lease and potential termination.

To keep the process smooth, provide the landlord with relevant details (the subtenant’s business, proposed term, use, plan of the area, financials) and a copy of the proposed sublease well in advance.

Retail Lease Rules

If your premises is a retail shop, state and territory retail leasing laws may impose extra requirements around disclosure and rent review mechanisms. For example, in New South Wales, key obligations sit under the Retail Leases Act, including processes for assignments and subletting, and rules about unconscionable conduct and outgoings transparency. Check the rules in your state and ensure your sublease aligns with them.

Head Lease Compliance

Even with a subtenant in place, you remain responsible to the landlord. If the subtenant breaches the sublease in a way that breaches the head lease, you carry the risk. This is why robust flow‑down clauses, monitoring, and clear reporting obligations matter.

Workplace Health And Safety (WHS)

Both you and the subtenant have WHS duties. Make sure it’s clear who controls the space, who is responsible for safety measures, and how incidents are managed and reported. Building managers often have their own induction and access protocols-include these in your sublease obligations.

Insurance And Risk Allocation

Confirm with your broker how the subtenant’s occupation affects your cover. Require evidence of the subtenant’s policies and ensure coverage levels meet any minimums under the head lease. Align indemnities to reflect who controls the area and the activities carried out there.

When Subletting Isn’t Viable

Sometimes, subletting isn’t the right tool-particularly where your landlord won’t consent, the use is incompatible, or the fit‑out can’t be shared. In these cases, alternatives like a formal assignment or a negotiated exit (for example, via a lease surrender) may be more appropriate. If you’re exploring an early exit, tailored lease termination advice or a Lease Surrender Agreement can help you manage costs and risk.

Step‑By‑Step: How To Set Up A Subletting Agreement For Your Business

Here’s a clear process you can follow from idea to signed sublease.

1) Check Your Head Lease

Locate the clauses dealing with subletting, assignments and sharing occupation. Note any prerequisites, consent requirements, timeframes, and conditions (for example, that the sublease must be on the same terms as the head lease).

2) Choose The Right Structure

Decide whether you need a sublease, assignment or licence. If you want to retain control and only grant part‑premises, a sublease is often suitable. If you want to get out entirely, consider an assignment via a Deed of Assignment of Lease. Where you’re testing a short‑term collaboration with non‑exclusive use, a licence may be more practical.

3) Select A Subtenant Carefully

Assess the proposed subtenant’s finances, business model and reputation. Ask for trade references, financial statements, and any licences relevant to the permitted use. A strong subtenant reduces the chance of defaults that could put your head lease at risk.

4) Prepare The Sublease Agreement

Draft a document that clearly flows down head lease obligations and reflects your commercial deal (rent, outgoings, fit‑out, access, insurance). Using a bespoke document rather than a generic template helps avoid conflicts with your head lease. If you need help, a Commercial Lease Lawyer can tailor the terms to your situation.

5) Gather Landlord Consent

Submit the information the head lease requires for consent. This often includes the sublease form, plan, subtenant details and financials. Build time into your plan-landlords and their advisers need time to review.

6) Formalise Security And Practical Handover

Take the bond or bank guarantee, confirm insurances, arrange building access passes, and complete any induction required by the building manager. Document condition (photos, condition report) before the subtenant moves in.

7) Ongoing Management

Keep communication channels open. Monitor rent receipts and compliance, and schedule periodic check‑ins. Having a process to escalate and remedy issues early will protect your position if things go wrong.

What If Things Go Off Track?

If the relationship breaks down or the subtenant defaults, your sublease’s default and termination provisions become critical. You may need to re‑enter, call on security, or-if the bigger picture has changed-negotiate an exit from the head lease. In more serious situations, it’s wise to get advice early to avoid the pitfalls that can come with breaking a commercial lease.

Key Takeaways

• A sublease agreement lets you share or monetise surplus space, but you remain responsible to the landlord under your head lease.
• Choose the right structure for your goal: sublease to share space, assignment to exit fully, or a licence for short‑term, non‑exclusive use.
• Must‑have clauses include clear premises description, term, rent/outgoings, security, maintenance and make‑good, insurance, flow‑down of head lease obligations, consent conditions and default/termination.
• Obtain the landlord’s written consent and ensure compliance with retail leasing laws where applicable, such as the obligations under the Retail Leases Act in NSW.
• Follow a simple process: check your head lease, select a suitable subtenant, prepare a tailored sublease, secure landlord consent, and manage the relationship proactively.
• When circumstances change, consider alternatives like a Deed of Assignment of Lease or a negotiated Lease Surrender Agreement to manage risk and cost.

If you’d like a consultation on preparing or reviewing a sublease agreement for your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.