Licence to alter
It is often necessary for leaseholders to alter premises they occupy, either before they first move in, or because of a need to refurbish the premises or change their operations.
Depending on the conditions of the lease and the nature of the alterations it is likely that a licence to alter will be required from the landlord giving the leaseholder permission to carry out the alterations.
Typically, works that require a licence might include altering; the structure, building services, internal walls or doors, external windows and so on. Minor changes that might be permitted without the permission of the landlord could include; putting up shelves, redecorating, laying new carpets, and so on. Alterations to leasehold premises are a common cause of dispute, and if there is any doubt about whether works require a licence to alter, the landlord should be consulted. Failure to obtain permission could constitute a serious breach of the lease.
Obtaining permission can be time consuming, particularly if it coincides with agreeing the lease itself, and this can present the leaseholder with the difficulty of having to appointing designers and even contractors at risk to carry out works that might not in the end be permitted. It is important therefore that the landlord should be consulted as soon as possible to determine; whether a licence is necessary, the likelihood of permission being granted, the timescale for obtaining a licence and the form of application required.
An application for a licence to alter might include:
- A description of the works.
- The programme for the works.
- Drawings showing the existing and proposed layout.
- Structural drawings and calculations.
- Building services drawings.
- Specifications.
- Risk assessments and method statements.
- A copy of the F10 notification.
- Evidence of insurances. NB Insurance of the works can be expensive to obtain relative to the value of the works because of the risk to other parts of the premises, and can sometimes be dealt with by adding the leaseholder and contractor to the landlord's insurance.
- Evidence of necessary planning permission, buildings regulations permission and other statutory approvals.
- Evidence of compliance with the Party Wall Act.
The Landlord and Tenant Acts require that permission is not unreasonably withheld, and in some situations, alterations which are necessary to comply with statutory requirements, cannot be withheld.
The licence itself records the agreed changes and the conditions under which those changes must be carried out:
- The agreed works.
- The conditions for the works (such as working hours, noise nuisance, cleanliness and waste handling).
- Requirement to comply with statutory obligations.
- Insurance requirements.
- Allocation of costs. Costs incurred by the landlord in having proposals assessed and preparing the licence to alter may be chargeable to the leaseholder as may additional insurance premiums and work that the landlord wishes to carry out themselves, for example work to security and alarm systems.
- The provision of as-built drawings and specifications.
- Requirement to reinstate the works at the end of the lease (see dilapidations for more information).
The timing of works associated with a licence to alter can be complicated, particularly when they are associated with the initial move into the premises, and a need to synchronise this with:
- The agreement of the lease.
- Relocation and removals.
- Purchase of new equipment, furniture, fixtures and fittings.
- Reinstatement works to the premises that are being vacated.
- Termination of the lease for the premises that are being vacated.
Failure to synchronise these activities can result in significant additional costs, or the need for temporary accommodation.
The landlord may wish to inspect the works at commencement, during the construction period and on completion.
[edit] Related articles on Designing Buildings
- Agent of change.
- Betterment.
- Building an extension.
- Commonhold
- Conversion.
- Dilapidations protocol.
- Dilapidations.
- F10 notification.
- Freehold.
- How to build a porch.
- Land law.
- Lease Negotiations - Tenants Checklist.
- Leasehold.
- Licence for Alterations for Apartment.
- Property disrepair and landlord liabilities.
- Quantified demand.
- Renovation.
- Rent-free period.
- Repairs and optional improvements.
- Restoration.
- Reversion.
- Sample retail lease.
- Schedule of dilapidations.
- Scott schedule.
Featured articles and news
What they are, how they work and why they are popular in many countries.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.
























