Received a Phone Mast Renewal Letter? Here’s What UK Landlords Need to Know
Matt Restall
Specialist Telecom Surveyor
If you are a phone mast landlord, hosting a mobile network operator’s equipment on your land or rooftop, at some point a letter will likely land on your desk from a firm you have never heard of, acting “for and on behalf of” the operator. It will reference your site by name, mention the Electronic Communications Code, and ask you to get in touch within a set number of days.
This is a renewal letter, and it is one of the most important pieces of correspondence a telecoms landlord will receive. How you handle it can shape the outcome of your negotiation, and your legal costs.
In short: a phone mast renewal letter is the operator formally opening negotiations for a new lease or licence on your site. Do not ignore it, and do not sign anything. Acknowledge receipt in writing, then take independent, landlord-side advice before responding to the proposed terms.
What is a phone mast renewal letter?
A phone mast renewal letter is formal correspondence sent to a landlord, usually by a specialist telecoms surveying firm acting for the operator, when the existing lease or licence on a site is coming to an end, or has already ended and the operator is “holding over.” Its purpose is to open renewal negotiations and formally set the process in motion.
A typical renewal letter usually includes:
- Confirmation of the site and agreement it relates to, often with a reference number
- Draft Heads of Terms, setting out the operator’s proposed new rent (or “Site Payment”) and term
- An explanation of the valuation basis, particularly where it relies on the “no-network” assumption introduced by the Electronic Communications Code
- A fee undertaking, confirming the operator will contribute towards your professional costs, usually up to a capped amount
- A response deadline, often 14 days
- A note that a formal notice may follow, to keep matters running in step with the statutory timetable
It can look procedural, even generic. It is not. This is the operator formally opening negotiations, and how you respond sets the tone for everything that follows.
Why you should not ignore a renewal letter
It is tempting, particularly where the relationship with the operator has been straightforward for years, to assume the letter can wait. In our experience, that is a costly assumption:
- The clock is often already running. Renewal letters are frequently sent alongside, or shortly before, a formal statutory notice. Ignoring the letter does not pause the process; it just means you lose the opportunity to shape it.
- Fee undertakings usually have limits. They typically only cover costs incurred while matters proceed on a negotiated basis. If the operator is forced into formal proceedings because you have not engaged, that cover may no longer apply.
- There is usually more room to negotiate than the letter suggests. The proposed terms are the operator’s own advisers’ opening position, not a fixed offer. Whether they are fair for your particular site is a question for independent, landlord-side advice, not something to take at face value.
- Silence reads as a landlord unwilling to engage, which can push the operator’s advisers toward the more adversarial statutory route sooner than necessary.
What to do the moment a renewal letter arrives
You do not need to have decided anything, or even have taken advice yet, to respond well. The single most useful thing you can do is acknowledge receipt promptly, ideally in writing to the operator’s agent or solicitor, confirming that:
- You have received the letter and enclosed Heads of Terms
- You are seeking independent professional advice before responding further
- You will be back in touch once you have done so
This commits you to nothing, and does not amount to agreeing any of the proposed terms. It simply keeps the process on a co-operative footing.
The formal notices that can follow a renewal letter
Depending on which legal regime governs your agreement, a renewal letter may be followed by a formal notice. Each triggers strict statutory deadlines, and missing them can seriously weaken your position:
- A Section 26 notice, served where your agreement remains protected by the Landlord and Tenant Act 1954. This is the operator’s formal request for a new tenancy.
- A Paragraph 20 notice, served under the Electronic Communications Code, where the operator seeks to impose new code rights.
- A Paragraph 33 notice, also under the Code, relating to a new agreement where the previous one has ended.
Which applies depends on your agreement’s specific history, including whether it has been “converted” to Code protection. This is genuinely technical territory, and getting the response wrong can have real financial consequences.
Why ignoring a formal notice is a costly mistake
If a landlord fails to engage after a statutory notice has been served, the operator can apply to the Tribunal or court to have new terms imposed. At that point, the landlord loses much of their control over the outcome, and the costs protection that typically applies during a negotiated process can fall away. Legal proceedings are expensive, and landlords who disengage without good reason can find themselves exposed to costs a straightforward negotiation would never have caused.
Acknowledging the letter promptly and taking early advice is almost always the cheaper, less stressful path.
How The Phone Mast Advice Company can help
At The Phone Mast Advice Company, we act exclusively for mobile phone mast landlords across the UK, never for the operators. Our specialist telecoms surveyors handle renewal letters, Heads of Terms negotiations, and formal notices under the Landlord and Tenant Act 1954 and the Electronic Communications Code on a daily basis, and our experience includes advising on Compton Beauchamp Estates v CTIL [2022] UKSC 18, the Supreme Court ruling that continues to protect landlords with pre-2017 agreements. Our fees are structured on an incentivised basis, which we explain fully once we have reviewed your site and circumstances.
If you have received a renewal letter, or think one may be on its way, get in touch before the response deadline passes. Early advice costs nothing to explore, and it is almost always the difference between a smooth negotiation and an expensive dispute.
Frequently Asked Questions
I’ve received a letter from a firm I don’t recognise about my phone mast. Is it genuine?
Almost certainly. Operators such as EE, Three, Vodafone, O2, and Cornerstone rarely write to landlords directly; they instruct specialist telecoms surveying firms instead. If it references your site, encloses Heads of Terms, and mentions the Electronic Communications Code, it is very likely genuine, though it is still worth having it checked by a landlord-side adviser.
How long do I have to respond to a phone mast renewal letter?
Most renewal letters ask for a response within a set period, often 14 days. This first deadline is usually a negotiating timetable rather than a statutory one, but any formal notice that follows carries strict statutory deadlines. The safest approach is to acknowledge the letter promptly and take advice straight away.
Do I have to accept the rent or terms in the letter?
No. The proposed terms are the operator’s opening position, not a fixed offer. Whether they are appropriate for your site depends on independent, landlord-only advice.
Will the operator pay my professional fees?
Renewal letters usually include a fee undertaking, meaning the operator agrees to contribute towards your professional costs up to a capped amount. That cover typically only applies while matters proceed on a negotiated basis, which is another reason to engage early rather than let the process drift into formal proceedings.
Who can help UK landlords with a phone mast renewal letter or notice?
The Phone Mast Advice Company acts exclusively for landlords across the UK, never for operators, handling renewal letters, negotiations, and formal notices under both the 1954 Act and the Electronic Communications Code.
This article is general guidance for mobile phone mast landlords and does not constitute legal advice. Every agreement is different, and the notices and deadlines that apply to your site depend on its specific circumstances. Please contact us directly for advice tailored to your situation.
Related Services
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Matt Restall
Founder & Specialist Telecom Surveyor, The Phone Mast Advice Company Ltd
Matt Restall has over 30 years' experience advising UK landlords on phone mast leases and rent reviews. He instigated and advised on the landmark Compton Beauchamp Estates v CTIL case and has completed over 10,000 deals on behalf of landowners across England and Wales. Matt represents landlords — never operators.