Should I Have My Commercial Sublease Reviewed?

Subleasing can be a smart way to secure a great location, reduce fit‑out costs, or downsize excess space. But a commercial sublease isn’t a “lite” version of a lease - it carries real legal and financial risk.

Before you sign anything, it’s worth pausing to ask: do I need a legal review of this sublease? In most cases, the answer is yes. A short review can save you from long, expensive headaches later.

In this guide, we’ll walk through how commercial subleases work in Australia, why a review matters, the key clauses to check, common risks for both subtenants and sublandlords, and the documents and consents you’ll usually need.

What Is A Commercial Sublease And How Does It Work?

A commercial sublease is where the current tenant (often called the “head tenant” or “sublandlord”) leases part or all of their premises to another business (the “subtenant”) for a set period. The head lease remains in place with the landlord. Your sublease sits underneath it.

Practically, that means two things:

• The head lease rules still apply. The subtenant must comply with the head lease to the extent the sublease passes those obligations on - which is most of the time.
• Consent is usually required. Most head leases say the landlord must approve any sublease before it takes effect.

Whether you’re the head tenant or the incoming subtenant, you’ll typically use a tailored Commercial Sublease Agreement that sets out rent, outgoings, use of the premises, bond/bank guarantee, make good and other key terms.

Why A Legal Review Matters Before You Sign

A sublease can look straightforward on the surface, but small drafting choices carry big consequences - especially when your rights are limited by the head lease and the landlord’s consent conditions.

A legal review helps you:

• Identify any conflicts between the sublease and the head lease (the head lease generally wins if there’s a clash).
• Confirm you can actually run your intended business from the premises (permitted use, approvals and fit‑out rules).
• Understand who pays for what (outgoings, services, repairs, essential safety measures).
• Map your exit plan (options, assignment rights, make good, early termination risk).
• Limit personal exposure (guarantees, indemnities, security).

If time is tight, you can still prioritise a targeted lease review and amendment advice to negotiate the top risk areas before you commit. For more complex setups or retail premises, it’s wise to speak with a commercial lease lawyer so your sublease is aligned with the head lease and any retail leasing laws that may apply in your state.

Key Clauses To Check In A Commercial Sublease

Here are the provisions we typically scrutinise during a sublease review. Even if you’re comfortable negotiating, use this as a checklist so nothing critical slips through.

Head Lease And Landlord Consent

• Head lease incorporated: The sublease should attach the head lease and clearly state which obligations flow down.
• Consent conditions: Confirm landlord consent is obtained in writing, who is responsible for fees, and that any conditions are workable (e.g. additional security or fit‑out restrictions).
• No “ipso facto” risk: If the head lease ends, your sublease usually ends. Consider what happens to pre‑paid rent or your fit‑out if that occurs.

Permitted Use And Fit‑Out

• Use: Check the permitted use is broad enough for your business and future plans (e.g. ancillary sales, events, storage).
• Approvals: Note who must obtain planning, building, or council approvals. Understand any base‑building rules, access hours and noise/odour limits.
• Fit‑out ownership: Clarify who owns the fit‑out, who maintains it, and how removal works at the end of the term.

Term, Options And Early Exit

• Term alignment: Your sublease can’t run longer than the head lease. If you want an option to renew, ensure the head lease allows it and that dates line up.
• Break rights: Check if either party can break early and on what terms (fees, notice, restoring condition).
• Assignment and sublicensing: Understand if you can assign your sublease to another party and what approvals you’ll need. Where needed, a Deed of Assignment of Lease may be required by the landlord.

Rent, Outgoings And Reviews

• Rent review method: CPI, fixed percentage or market? Make sure the method is clear and consistent with the head lease.
• Outgoings: List exactly which outgoings you pay (e.g. rates, utilities, cleaning, management fees) and how they’re calculated for shared premises.
• Inclusions: Confirm services you need are included and reliable (air‑conditioning, lifts, security, access control).

Repairs, Maintenance And Access

• Repair responsibilities: Head landlord usually handles structural repairs; the subtenant often handles non‑structural and fit‑out. Spell this out.
• Access: Check access hours, keys/fobs, and after‑hours fees. Consider service access for deliveries and trades.
• Interruption: What happens if services are interrupted (rent abatement, time to repair)?

Insurance, Security And Liability

• Required policies: Public liability cover is common; check any minimum cover amounts and whether the landlord must be noted as an interested party.
• Security: Confirm the form and amount (bond, bank guarantee, personal guarantee) and when it’s released.
• Indemnities and caps: Look for broad indemnities and consider reasonable liability caps where appropriate.

Make Good And End‑Of‑Term

• Condition report: Take a detailed condition report at entry to avoid disputes later.
• Make good scope: Clarify whether you must repaint, recarpet, remove cabling, or restore base‑building services - and who pays.
• Final inspection: Agree a clear process and timeframes for handover.

Common Risks For Subtenants And Sublandlords

Subleasing shifts risk around the triangle of landlord, head tenant and subtenant. Here are pitfalls we see most often - and why a review is worth it.

For Subtenants

• Head lease ends unexpectedly: If the head tenant defaults or the landlord terminates, your sublease typically falls away. Consider protections like notice rights, step‑in discussions, or pre‑agreed compensation for stranded fit‑out.
• Hidden costs: Unclear outgoings or building‑imposed charges can add up. Insist on a transparent breakdown and caps where possible.
• Use too narrow: If “permitted use” is tight, you may be unable to add services or products later without consent.
• Make good surprises: Vague obligations can turn into costly end‑of‑term works. Get the scope in writing and keep records.

For Sublandlords (Head Tenants)

• Non‑compliant subtenant: If the subtenant breaches, you remain liable to the landlord. Strong default clauses, clear operational rules and security help manage this risk.
• Consent conditions: Landlords may add conditions that increase your cost or oversight. Ensure they’re practical and captured in the sublease.
• Repair access: You may need access to remedy issues quickly to avoid breaching the head lease. Include clear access and rectification rights.
• Exit strategy: If you need to surrender or vary the head lease, a sublease can limit your options. In some situations, a Lease Surrender Agreement or a negotiated assignment may be cleaner than subleasing.

If the relationship breaks down, understand the practical and legal steps before taking action - disputes can escalate and resemble the issues arising from breaking a commercial lease.

What Documents And Consents Do I Need?

Every arrangement is different, but most subleasing setups will involve some or all of the following.

• Landlord consent: A written consent letter or deed confirming approval and any conditions (fees, additional security, use limits).
• Head lease: The current executed head lease and any variations or side letters, provided to the subtenant and referenced in the sublease.
• Commercial sublease: A tailored sublease that aligns with the head lease, sets out operational rules, and deals with rent, outgoings, repairs, insurance and make good.
• Security: Bond or bank guarantee, and any director/personal guarantee if required by the landlord or sublandlord.
• Fit‑out approvals: Landlord and (if required) council approvals for works, plus compliance certificates on completion.
• Assignment or novation deed (if relevant): If you’re transferring the sublease or head lease, the landlord may require a Deed of Assignment of Lease.
• Alternative structures: In some cases, a flexible Property Licence Agreement can be a better short‑term option than a formal sublease (for example, desks in a shared workspace).

Not sure which path fits? Our team can help you compare options and prepare the right documents from the outset.

How To Get Your Sublease Reviewed The Right Way

A good review is practical, fast and focused on your commercial goals. Here’s a simple process that works well.

1. Share the full pack: Provide the head lease (and any variations), the draft sublease, landlord consent draft, building rules and any plans for fit‑out.
2. Clarify your goals: Are you testing the location, needing short‑term overflow space, or securing a long‑term foothold? Priorities will shape what to push for.
3. Target the key risks: Use the clause checklist above to zero in on rent/outgoings, use, approvals, liability, security, make good and exit.
4. Negotiate changes: Where the risk is material, propose clear amendments. If timing is tight, seek side letters or conditions in the consent deed to plug gaps.
5. Finalise and sign: Confirm landlord consent is executed, dates align with the head lease, security is in place, and any approvals are scheduled.

If the deal structure shifts during negotiations, a short consult with a leasing specialist can save days of back‑and‑forth and help you move forward confidently.

Key Takeaways

• A commercial sublease sits under a head lease, so the landlord’s rules still apply - and written consent is usually required.
• Have the sublease checked for conflicts with the head lease, clarity on use and approvals, cost transparency, liability, security and make good.
• Subtenants should plan for head‑lease risks (like early termination) and protect fit‑out and access; sublandlords should guard against subtenant defaults.
• Align your term and options with the head lease and lock in a clear, workable exit strategy.
• Get the paperwork in order: consent deed, tailored sublease, security, and any approvals - consider whether a licence or assignment is more suitable.
• A targeted legal review before signing is a low‑cost way to prevent expensive disputes and unexpected costs later.

If you’d like a consultation or a fixed‑fee review of your commercial sublease, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.