Heads of Terms in Commercial Property: What to Agree Before You Sign
Article Summary
- Heads of terms record the key commercial terms both parties agree on before solicitors get involved, and getting them right shapes the deal.
- Every heads of terms should cover the parties, the property, the rent, the lease term, permitted use, and repairing obligations.
- Most heads of terms are "Subject to Contract," but clauses like confidentiality, exclusivity, and fee liability can be made expressly binding.
- Agents draft the initial document for the landlord, not you, so instructing a solicitor to review it before you respond is essential.
What Are Heads of Terms in Commercial Property?
Heads of terms set the commercial framework for a deal before solicitors get involved.
When you're taking on a commercial lease, there's a document that comes before the formal contract. It's called heads of terms, and it records the key points both parties have agreed in principle: the rent, the lease length, responsibilities, and anything else that needs to be settled before lawyers start drafting. Think of it as the handshake on paper before the paperwork begins.
Most people only discover what heads of terms are after they've already been handed one to sign. By then, the other party has already shaped the deal.
You may also see it referred to as a letter of intent, term sheet, or memorandum of understanding. The label doesn't matter legally. What matters is that the document accurately captures what's been agreed, because everything that follows, including the formal lease, is built on top of it.
Heads of terms aren't a legal requirement, but in any commercial property transaction of meaningful size or complexity, they're standard practice. Skip them, and both parties enter the formal contract stage with different assumptions about what was agreed. That creates friction, delays, and in some cases, deals that collapse entirely.
What Should Heads of Terms Include?
Every heads of terms should cover the parties, the property, the rent, the lease term, permitted use, and any outstanding issues still to be resolved.
Most heads of terms in UK commercial property follow a standard structure. Here's what you should expect to see, and what to watch for if anything is missing:
| Component | What it covers | Consequence if missing |
|---|---|---|
| Party details | Full legal names of tenant and landlord | Ambiguity over who is actually bound |
| Property details | Full address and description of the premises | Scope of the lease is unclear |
| Rent | Agreed rent and payment frequency | Opens the door to later disputes |
| Lease term | Start date and duration | No shared understanding of commitment |
| Permitted use | What the property can be used for | Landlord can restrict your operations |
| Break clauses | Tenant or landlord exit options | You could be locked in with no way to break your lease early |
| Rent review | When and how rent is reviewed | Unexpected rent increases down the line |
| Repairing obligations | Who is responsible for what | Significant cost exposure at lease end |
| Outstanding issues | Points still to be resolved | Disputes emerge later in the process |
Whether you're leasing office space or another type of commercial property, the permitted use clause needs to reflect exactly what your business does. A full repairing and insuring lease (FRI) places the cost of maintaining the property squarely on the tenant, which is a significant financial commitment you should understand and negotiate at this stage, not after the lease is signed.
Rent review terms are another area where vague drafting causes problems. A heads of terms that simply states "rent review every five years" without specifying the mechanism leaves you exposed. Upward-only commercial rent review clauses are common in the UK market, and if that's what's being proposed, record it clearly so you can assess the long-term cost implications before agreeing.
Are Heads of Terms Legally Binding?
In most cases, no, but that doesn't mean you can ignore what's in them.
The majority of heads of terms documents in UK commercial property are marked "Subject to Contract." This means the document as a whole is not legally binding, and either party can walk away before formal contracts are exchanged. That's the standard position, and it's what you'll encounter in most deals.
However, there's an important nuance that catches a lot of tenants off guard. A single heads of terms document can contain clauses with different legal statuses, meaning some provisions can be expressly drafted as binding even when the rest of the document is not. Confidentiality and exclusivity clauses are common examples. The "Subject to Contract" label doesn't automatically apply to every line, which means you need to read the document carefully. Learning a clause is binding when you assumed it wasn't can be one of the more expensive mistakes in commercial property.
Under the Law of Property (Miscellaneous Provisions) Act 1989, a heads of terms document could technically become legally binding. To reach that threshold, it must be in writing, contain all expressly agreed terms, be signed by both parties, and demonstrate offer, acceptance, consideration, and an intention to create legal relations. In practice, most heads of terms don't meet all of these conditions, which is why the "Subject to Contract" qualification remains the norm.
What tenants sometimes underestimate is the commercial weight a heads of terms carries even when it isn't legally binding. Both parties treat it as a strong commitment, and walking away from agreed terms without good reason has real consequences. The practical question is knowing which clauses carry legal weight and which don't, and that comes down to how they're drafted.
Which Clauses Should Be Made Binding?
Confidentiality, exclusivity, and fee liability clauses should always be made expressly binding, regardless of the document's overall status.
Most heads of terms are non-binding in their entirety, but there are three clauses that experienced solicitors routinely carve out and make legally enforceable from the outset, plus one worth knowing about in certain contexts. As a tenant, knowing what these are and why they matter gives you a clearer picture of what to push for before you sign anything.
Confidentiality
Negotiations involve sensitive information: your financials, your business plans, or your timeline, for example. A binding confidentiality clause protects that information if the deal falls through.
Without one, the other party is under no legal obligation to keep what they've learned about your position private. That means a landlord or vendor who knows your budget ceiling, your timeline pressure, or your fallback position could use that information to their advantage in future negotiations, with you or with someone else.
Exclusivity
A binding exclusivity clause prevents the landlord or vendor from marketing the property to other parties or entertaining competing offers during a defined period. Without it, you can spend money on due diligence costs while the other side continues talking to other prospective tenants or buyers.
Fee liability
This clause makes one party responsible for the other's reasonable legal costs if they withdraw from the deal without good reason or attempt to renegotiate agreed terms after the heads of terms have been signed. A landlord who knows they'll be liable for your abortive costs is far less likely to walk away or reopen settled points opportunistically.
Non-poaching
Less relevant for straightforward lease transactions, but in business sale or investment contexts this clause prevents the other party from approaching your key staff during negotiations.
What Are Common Pitfalls When Agreeing Heads of Terms?
Vague drafting and incomplete documents are the two mistakes that cause the most damage.
The most common problem is ambiguous language on key terms. A heads of terms that says "rent review every five years" without specifying the mechanism, or "tenant responsible for repairs" without defining the scope, doesn't resolve anything. It just defers the argument to a later stage when it's more expensive to fix.
The second pitfall is assuming the entire document is non-binding without reading it carefully. Tenants who sign without understanding which provisions are binding may inadvertently commit to obligations they didn't intend to accept, including confidentiality terms, exclusivity periods, or fee liability clauses that work against their interests if poorly drafted.
Finally, there's the cost of getting it wrong. Abortive legal fees, lost survey costs, and delayed completion are all realistic outcomes of poorly drafted heads of terms. Repairing obligations agreed at this stage can also translate into significant dilapidations liability at lease end if the scope isn't clearly defined. Early legal involvement prevents a much larger cost further down the line.
How Should You Approach Heads of Terms Negotiation?
Heads of terms are a negotiation, and the agent presenting them is not acting in your interest.
Heads of terms set the tone for everything that follows, which is why your approach to the negotiation matters as much as the terms themselves. In most UK commercial property deals, the initial document is drafted by the agent acting for the landlord or vendor. That's standard practice, but it means the document will reflect the other party's preferred position. Agents are skilled at capturing commercial terms, but they're not legally qualified to address binding versus non-binding provisions or the risks created by ambiguous drafting. The right move is to instruct a commercial property solicitor to review the document before you respond.
Know which terms matter most before negotiations begin. For tenants, the terms most worth protecting are permitted use, break clause options, rent review mechanism, and repairing obligations. These have the longest financial tail if agreed poorly.
Resist pressure to agree quickly. Agents acting for the landlord have an incentive to move the deal forward, and that can create artificial urgency. Agreeing to incomplete heads of terms under time pressure is one of the most avoidable and costly mistakes in commercial property. Tenants who take that time consistently end up with better terms, lower costs, and fewer surprises once the formal lease begins.
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Frequently Asked Questions
Can a landlord withdraw from a deal after heads of terms have been agreed?
Where heads of terms are marked "Subject to Contract," yes. A landlord can walk away before formal contracts are exchanged without incurring legal liability for the uncommitted terms. This is why binding exclusivity and fee liability clauses matter: without them, your financial exposure during the due diligence period is largely unprotected. Gazumping is a risk in commercial property just as it is in the residential market.
What is the difference between heads of terms and a formal contract?
Heads of terms record what's been agreed before formal contracts are drafted. The formal legal commitment arises at exchange of contracts, not before. Between agreeing heads of terms and exchange, either party can withdraw, subject to any binding provisions. That gap is the period of greatest financial risk for tenants and investors, which is why the binding clauses you negotiate into your heads of terms are your primary protection during it.
