Commercial Lease Due Diligence Checklist for Business Owners
A commercial lease due diligence checklist should test the premises, total cost, contract obligations and downside cash flow before a business commits.
Due diligence is the process of verifying whether the proposed premises and lease support the business plan. It is not limited to reading the rent clause. Operational suitability, building condition, legal rights, funding, approvals and exit exposure should all be investigated, with each question allocated to the adviser best qualified to answer it.
The short answer
Verify facts rather than relying on marketing material or assumptions.
Assess the lease and all related documents together.
Model the total cash requirement and a downside scenario.
Record unresolved items as conditions, risks or reasons to pause.
Premises and location checks
Inspect access, parking, loading, storage, visibility, public transport, neighbouring uses, noise, utilities, telecommunications and physical security. Consider customer and staff needs across the business's actual operating hours. Check whether the layout supports workflows and future capacity. Confirm who is responsible for defects, services and compliance work identified before occupation.
Lease documents and legal review
Request the proposed lease, disclosure material where applicable, incentive deed, outgoings estimates, plans, rules, guarantees and any agreement for lease. A lawyer should review term, options, rent reviews, permitted use, assignment, relocation, redevelopment, default, personal guarantees, insurance and make-good. Ensure side arrangements are documented and consistent with the lease.
Financial and cash-flow review
Model rent, GST, outgoings, utilities, maintenance, insurance, security, fit-out, professional fees and opening working capital. Show payment dates and tax timing. Compare the commitment with sustainable earnings and test delayed opening, cost overruns, weaker sales and higher operating expenses. Identify the lowest cash point rather than relying on an annual profit forecast.
Fit-out, approvals and building condition
Obtain detailed quotes and clarify design, approvals, accessibility, fire safety, services, signage and commissioning. Determine who owns improvements and what must be removed. Depending on the site, specialist building, electrical, environmental or engineering advice may be appropriate. Keep photographs, plans and a signed condition report.
Funding, conditions and decision control
If finance is required, provide lenders with the lease proposal, costs, timetable, contribution and forecasts. Coordinate credit approval, landlord consent, licences and legal review before becoming unconditionally bound. Maintain a written issues list showing the evidence obtained, the responsible adviser and whether each item is resolved, accepted or made a condition.
Questions to ask before committing
What evidence supports the rent, cost and revenue assumptions?
Which approvals, consents, notices and security must be in place?
What changes under a delayed-opening, weaker-sales or early-exit scenario?
Which matters require legal, accounting, tax, valuation or technical advice?
Frequently asked questions
When should due diligence begin?
Before signing or paying non-refundable amounts, allowing enough time for legal, financial and technical review.
Can a standard checklist replace legal advice?
No. It helps organise questions but cannot interpret the specific lease or legislation.
What if information is unavailable?
Treat the gap as a risk. Decide whether further evidence, a condition or a different decision is required.
Can a broker approve the premises?
No. A broker can assess finance implications, not legal or operational suitability.
Build an evidence file
For every checklist item, save the supporting document or note who confirmed it and when. Evidence may include photographs, plans, searches, licences, quotes, correspondence, outgoings records and cash-flow assumptions. Distinguish statements made by the agent or seller from independent verification. This avoids a common problem where issues were discussed but nobody can later identify the answer relied on.
Red flags that require escalation
Examples include inconsistent rent figures, undocumented incentives, missing approvals, urgent pressure to sign, unknown building defects, broad redevelopment rights, weak options, unexplained arrears and material gaps in fit-out quotes. A red flag does not always end the transaction, but it should produce further evidence, a negotiated protection, a condition or a conscious decision to accept the exposure.
Final review meeting
Before commitment, bring the unresolved issues into one meeting or written decision record. Confirm what the lawyer, accountant, technical adviser and broker have each reviewed—and what they have not. Recalculate total cash after negotiated changes. Record key dates and conditions. The objective is a coordinated decision, not separate adviser reports that leave important assumptions between professional boundaries.
Conclusion - Commercial lease due diligence checklist
A useful checklist produces an evidence trail and a clear decision, not merely a collection of documents. The unresolved items often matter more than the completed boxes.
Considering Commercial Premises?
Discuss how the premises commitment and proposed finance could be assessed together.
General information only. This article does not constitute financial, credit, legal, tax, accounting, compliance or valuation advice. Finance is subject to lender approval, eligibility criteria, terms, fees and conditions. Consider obtaining independent professional advice for your circumstances before acting.
