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Understanding the implications of Part M and TGD M 2010 on Buildings of Historical Signficance

When it comes to accessing a building of historical importance such as a protected structure, it is essential to understand the constraints imposed by the existing structure and its immediate environment.

It is likely that designing within the application of Part M (see Section 0.6 of TGD M 2010) will create a number of challenges for buildings which are of architectural or historical interest, however the critical aim of Part M of the Building Regulations within the area of historic buildings is to improve accessibility where it is practically possible (see section 0.7of TGD M 2010- Determination of practicability) provided that the work does not prejudice the character of the historic building.

Information about the significance of a building may be obtained from a conservation plan or statement, where these exist, or from the architectural conservation officer from the relevant local authority.

Where full access to a building of historical importance proves to be impracticable or unreasonable, the guidance provided in Section 2 may be used in addition to the guidance from Section 1.  It is important to note that the provisions in Section 1 still apply to existing buildings unless additional guidance on minimum levels is provided in Section 2.

This means that where works to existing buildings are carried out in accordance with the guidance in Section 1 of the technical guidance document, this will, prima facie, indicate compliance with Part M.  Where it is not practicable to apply the guidance in Section 1 and works are carried out to Section 2, this will also prima facie indicate compliance with Part M.

In some instances it may be wise to liaise with the local Building Control Authority to discuss the possibility of using different approaches which are still based on the principles in this document but may be more relevant.  It is also possible in certain cases to apply to the local Building Control Authority for a dispensation or relaxation (or partial dispensation or relaxation) of the Requirements.

If you would like further information or need further assistance in relation to historic buildings and the implications of Part M 2010 please do not hesitate to contact one of our team on 01-4151285 or e-mail [email protected].