Last edited 30 May 2019

Alteration work

Contents

[edit] Introduction

A building may need to be altered at some point after it has been constructed during its in-use period. This will necessitate alteration work.

Alteration work may be required for a wide range of reasons, including:

Common examples of alterations include:

Alteration work may be instigated by:

Alteration work can be complex and may involve higher design and construction fees than new build work. Appointing a designer or contractor to carry out the works may be on the basis of a firm that has successfully undertaken work in the past and is trusted by the client/building owner; or by inviting firms to tender for the work in an invitation to tender (ITT).

[edit] Permissions

Some alteration works may require planning permission while some may be considered ‘permitted development’ for which planning permission will not be required. The best way to determine whether a development is ‘permitted’ or not is to refer to the local planning authority.

Examples of permitted development include:

For more information see: Permitted development.

Alteration work may also require building regulations approval.

For more information see: Do the building regulations apply to works to existing buildings?

[edit] Variations

The term ‘alteration work’ as used in this article should not be confused with alterations to the scope of works of a construction contract, which are more commonly known as ‘variations’. Variations are changes involving addition, substitution, or omission to the original scope of the construction contract, and can affect the design, quantities, quality, working conditions or sequencing of the works.

For more information see: Variations.

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