Understanding commercial leases: what every tenant needs to know
Signing a commercial lease is one of the most significant commitments a business can make. While rent is important, the real value of a lease lies in how well it protects your interests, supports future growth and limits unexpected costs.
By understanding the key provisions and asking the right questions, you can make informed decisions and avoid costly surprises.
Look beyond today’s needs
Don’t assess a lease solely on your current circumstances. Consider where your business may be in three, five or ten years.
Will the premises still work if you employ more staff, expand operations or change your business model?
Before reviewing the legal detail, check that the fundamental terms reflect what you negotiated:
- Premises: Confirm the location, size and boundaries of the space and check that the stated measurements are accurate.
- Lease term: How long are you committing to the premises? Are there renewal options?
- Rent and increases: What is the starting rent and how will it increase?
If these fundamentals don’t match your expectations, clarify them before proceeding.
Understand your total occupancy cost
Commercial rent is rarely your only expense. Depending on the lease, you may also pay service charges, insurance contributions, utilities, property taxes or other operating costs.
Service charges can cover cleaning, repairs, landscaping, security, lighting, shared utilities and property management. Check:
- What costs the landlord can recover.
- How your contribution is calculated.
- Whether annual budgets and accounts are provided.
- Whether increases are capped.
- Whether you could contribute towards major works or refurbishment.
Ask for previous service charge budgets and accounts. A low rent can become considerably more expensive if service charges are high or unpredictable.
Tip: Focus on the total occupancy cost, not simply the headline rent.
Review renewal and exit options
Business circumstances can change. Check carefully:
- Renewal rights: Can you extend the lease and when must notice be given?
- Break clauses: Can you terminate early, and what conditions apply?
- Expiry and holding over: What happens if you remain after the term ends?
- Expansion: Can you take additional space if it becomes available?
- Relocation: Can the landlord move your business elsewhere within the property?
These provisions can provide valuable flexibility or leave you committed to unsuitable premises.
Know who is responsible
Make sure the lease clearly allocates responsibility for:
- Repairs and maintenance, including roofs, structure, plumbing and heating/HVAC.
- Alterations and improvements.
- Insurance and liabilities.
- Reinstatement of the premises when the lease ends.
Clear responsibilities reduce the risk of disputes and unexpected expenditure.
Consider assignment and subletting
Businesses may grow, relocate or be sold. Check whether you can assign the lease or sublet the premises and when landlord consent is required.
If you assign the lease, the landlord may require an Authorised Guarantee Agreement (AGA), under which you can remain liable for the new tenant’s obligations if they default. This can create significant ongoing financial risk.
Watch for hidden costs
Pay particular attention to:
- Uncapped operating expenses or service charges.
- Major repair obligations.
- After-hours heating or air-conditioning charges.
- Administrative or management fees.
- Reinstatement obligations.
A single overlooked clause can result in substantial additional costs.
Final thoughts
A commercial lease should be viewed as a long-term business commitment, not simply a property agreement. Understand the financial and operational implications, consider how your needs may change and take professional advice before signing.
The right advice at the start can help protect your business, improve flexibility and prevent expensive problems later.
If you have any questions, please contact Tom Leigh, Partner in the Commercial Property team.
Tom Leigh, Partner – Commercial Property