Clinics, health centres, crèches, day nurseries, day centres, schools, art galleries (other than for sale or hire), museums, libraries, halls, places of worship, church halls, law court. Nonresidential education and training centres. There are no permitted changes.

Cinemas, music and concert halls, bingo and dance halls (but not night clubs), swimming baths, skating rinks, gymnasiums or area for indoor or outdoor sports and recreations (except for motor sports, or where firearms are used). There are no permitted changes.

Where there is an obligation to decorate, the decoration covenants within the lease will state when internal or external decoration is required. It may go on to define specific details, such as how many coats of paint are to be applied and when the decorations are to be applied.

Demised premises are the extent of the premises included within a lease and may include land or other facilities. For example, when an office block is let under a written lease, in the lease the office block might be referred to as the demised premises.

Depreciation is a method of allocating the cost of a tangible asset over its useful life. Businesses depreciate long-term assets for both tax and accounting purposes. Consumption includes the wearing out, using up or other reduction in the useful economic life of a tangible fixed asset whether from use, passing of time or obsolescence through either change in technology or demand for goods and services produced by the asset.

The generic term for the decision of a Third-Party surveyor appointed under a Dispute Resolution clause to make a binding decision to resolve a dispute between the parties to a lease. Most commonly Independent Expert Determination of a rent review (similar to an Arbitration Award), but can include service charge, insurance and adjoining owner/occupier clauses.

The term 'dilapidations' refers to the breaches of a tenant's lease covenants in respect of repair, reinstatement of alterations, and redecoration. Can be raised by a landlord during the term of the Lease (interim dilapidations) or, more commonly, at lease expiry (terminal dilapidations). Any resultant claim for damages is capped at the Diminution in Value of the landlord's interest under s18 of the Landlord and Tenant Act 1927 in respect of repair, and similar principles at common law in respect of reinstatement and redecoration.

There is a formal pre-action protocol for claims for damages in relation to the physical state of a commercial property generally called the ‘dilapidations protocol’. This was been formally adopted under the Civil Procedure Rules in January 2012.

A Diminution Valuation is a specialist’s report prepared by an experienced Valuer which takes into account Section 18 of the Landlord and Tenant Act 1927. Section 18(1) provides that the damages for breach of the repairing covenant may not exceed the diminution in value of the landlord’s reversion caused by breaches of repair. The common law practice is now to produce a single diminution valuation reflecting all breaches of covenant (i.e., including reinstatement etc.).

An analysis technique used to appraise, for example, investment and development projects, whereby future income streams are discounted, accounting for the time cost of money, to arrive at a present value in order to gauge performance and project viability.

The assessment of the condition of property, which highlights areas where repair is required. Many tenants will have obligations to repair their premises. Failure to do so is commonly referred to as disrepair. The state of repair is usually disregarded in making an assessment for rating, although significant dilapidation can lead to a removal from liability.