Reviewed by Clayton Ayling BSc (Hons) MRICS MPTS, Chartered Building Surveyor — Updated 4 August 2026
Licence to Alter Cost
Combined legal and surveying fees for a licence to alter commonly run between £2,000 and £6,000 on a straightforward commercial fit-out, and the tenant normally pays for both sides. Superior landlord consents, listed buildings, and works affecting structure or services push the figure higher. A premium, where the landlord requires one, sits on top and is negotiated separately.
Those numbers are the visible cost. The larger figure is the reinstatement obligation the licence creates, which falls due years later and commonly reaches six figures on a full office floor. Understanding both is the point of this guide. For what the document itself covers, see what a licence to alter is.
Legal Fees
Both sets of solicitors, plus any superior landlord. Drafting, negotiation, and registration of the deed against the title.
Surveying Fees
Review of drawings and specification, technical conditions, condition record before works, and negotiation of the reinstatement clause.
Premium
A payment for the consent itself. Not always required. Where payable it is often the largest single line and is negotiated on its own terms.
The key point
Ask for a written fee estimate from the landlord before giving the costs undertaking. Once the undertaking is given, the tenant is exposed to whatever the professional advisers acting for the landlord charge. An estimate at the outset is far more effective than a challenge to the invoice afterwards.
Who pays for a licence to alter
The tenant pays. Almost every commercial lease requires the tenant to meet the professional costs of the landlord in dealing with an application for consent, and to give a written undertaking for those costs before the application is considered.
Where a superior landlord is involved, the tenant normally meets that set of fees as well. In central London office buildings held on long headleases this is common, and it can double the legal cost. The tenant should establish at the outset whether a superior consent is required, because it affects both the cost and the programme.
The undertaking usually survives withdrawal. A tenant who applies for consent and then abandons the works remains liable for the costs incurred to that point. Applications should be made when the design is settled, not to test the reaction of the landlord.
Legal fees
Legal fees cover drafting or reviewing the deed, negotiating the terms, and registering the licence against the title where the lease is registered. On a single-landlord commercial licence, each side commonly charges between £750 and £2,500.
- Straightforward internal fit-out, single landlord — typically £750 to £1,500 per side.
- Superior landlord consent required — add a further set of fees, commonly £750 to £2,000.
- Works affecting structure, the exterior, or a listed building — higher, reflecting the additional conditions and consents.
- Registration at HM Land Registry — a modest additional cost, handled by the solicitors.
Surveying fees
Surveying fees cover the technical side of the consent. The work is carried out by Clayton Ayling, a chartered building surveyor regulated by RICS, and covers matters the legal drafting does not reach.
Acting for the tenant
Reviewing the lease alterations clause, confirming which works need consent, recording condition before the works begin, and negotiating the reinstatement position to limit exposure at expiry.
Acting for the landlord
Assessing the proposals against the fabric, structure, and services, setting conditions for the works, and defining the reinstatement obligation to protect the reversion.
Fees follow the complexity of the assessment rather than the value of the works. A modest set of alterations that affects fire compartmentation, sprinkler layout, or landlord plant takes more assessment than a larger fit-out that touches none of them.
Recording the condition before the works begin is a separate and worthwhile item. It is priced by area and takes a day on most office suites. Without it the tenant has no evidence of the starting position when the reinstatement demand arrives. The approach is set out in the office schedule of condition guide.
The premium
A premium is a payment to the landlord for granting the consent, separate from any professional fees. It is not a standard feature of every licence and many commercial consents are granted without one.
A premium becomes more likely where the alterations affect the value or lettability of the premises, where the lease expressly reserves the right to charge one, or where the alterations clause makes consent a matter of landlord discretion rather than a qualified covenant. Where the covenant is qualified — consent not to be unreasonably withheld — a demand for a substantial premium may itself be unreasonable, depending on the circumstances.
Premiums are negotiated. There is no scale. The negotiating position of the tenant is strongest before the fit-out programme is committed and weakest once contractors are booked.
The cost that matters more than the fee
The professional fees are a few thousand pounds. The reinstatement obligation agreed in the same document is the figure that determines the real cost of the licence.
Stripping a fitted office floor back to base-build condition means removing partitioning, joinery, kitchenettes, supplementary cooling, structured cabling, and altered lighting, then making good ceilings, raised floors, and finishes. Priced by area and specification, this commonly reaches six figures on a full floor. On a small suite it still runs to tens of thousands of pounds.
That liability is created by a clause negotiated in a matter of weeks, often with the fit-out programme already under pressure. The difference between automatic reinstatement and reinstatement only on notice from the landlord is worth more than every fee in this guide combined. The mechanics are set out in office fit-out reinstatement, and the wider lease-end position in dilapidation costs.
Controlling the cost
The cost of a licence to alter is controlled at the application stage, not at the invoice stage.
- Ask for a written fee estimate from the landlord before giving the costs undertaking.
- Establish at the outset whether a superior landlord consent is required, so the full cost and programme are known.
- Submit a settled design. Repeated revisions to drawings generate repeated review fees on both sides.
- Prepare the drawings and specification to a standard the landlord can assess, rather than an outline layout that prompts queries.
- Apply once the design is fixed. An undertaking given on a speculative application still creates liability if the scheme is abandoned.
- Negotiate the reinstatement clause, because it carries more value than the fees.
Pricing a licence to alter?
The fee for a licence to alter is predictable. The reinstatement liability it creates is not, unless it is assessed before the document is signed.
See what a licence to alter is, the licence to alter template guide, and the office fit-out surveyor service.
Related knowledge
Compare this article with the nearest matching pages if you want to follow the topic into related surveying questions.
Guide to the licence to alter for commercial and leasehold property — what the consent covers, when the lease requires it, the cost, the reinstatement obligation it creates at lease expiry, and what a chartered building surveyor assesses that a solicitor does not.
What a standard licence to alter template contains — parties, permitted works, conditions, reinstatement, costs, and the attached drawings — which provisions decide the commercial outcome, and what a template cannot assess.
Guide to office fit-out reinstatement at lease expiry — what CAT B strip-out involves, where the obligation comes from, what it costs, and how the claim is tested against the licences, section 18, and supersession.
A practical guide to dilapidation costs — the factors that drive them, how surveyors calculate them, the statutory caps that limit recovery, and how to manage exposure across the lease rather than at the end of it.
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