The Construction (Design and Management) Regulations 2015 (CDM 2015) came into force in Great Britain on 6 April 2015. They set out what people involved in construction work need to do to protect themselves from harm and anyone the work affects.

 Whatever your role in construction, CDM aims to improve health and safety in the industry by helping you to:


  1. sensibly plan the work so the risks involved are managed from start to finish
  2. have the right people for the right job at the right time
  3. cooperate and coordinate your work with others
  4. have the right information about the risks and how they are being managed
  5. communicate this information effectively to those who need to know
  6. consult and engage with workers about the risks and how they are being manage

CDM 2015 is subject to certain transitional arrangements, for construction projects that began before 6 April 2015 and continue beyond that date.

Need building work done?

A short guide for clients on the Construction (Design and Management) Regulations 2015


Cover of draft CDM Regulations 2015

Cover of draft CDM Regulations 2015

Date of publication: 2015
Series code: INDG411 (rev1)
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This leaflet is aimed at anyone having maintenance, small-scale building work or other work carried out. As a client you have duties under the Construction (Design and Management) Regulations 2015. The Regulations aim to make sure the construction project is safe to build, use and maintain and offers good value. The leaflet explains what clients need to do and points out where you can find out more.

Domestic clients

If you are having work done on your own home, or the home of a family member, and it is not in connection with a business, you will be a domestic client. The only responsibility a domestic client has under CDM 2015 is to appoint a principal designer and a principal contractor when there is more than one contractor.

However, if you do not do this, (as is common practice) your duties as a domestic client are automatically transferred to the contractor or principal contractor.

If you already have a relationship with your designer before the work starts, the designer can take on your duties, provided there is a written agreement between you and the designer to do so.