Health and Safety Responsibilities for Self-builders
Self-building a new home or extension can be an exciting and rewarding process. It gives a self-builder the opportunity to create a customised space from start to finish. Self-build homes can be environmentally friendly, often have innovative designs and may cost less than standard housing.

What are the Health and Safety Laws?
Two of the most important health and safety laws for construction are the Health and Safety at Work etc Act 1974 and the Construction (Design and Management) Regulations 2015 (CDM Regulations).The Health and Safety at Work etc Act 1974
This Act lays out general workplace health and safety principles for employers, employees and the self-employed. It places a duty on employers to assess and reduce the severity of risks in the workplace as much as is reasonable and practical. Employers must abide by all relevant health and safety regulations, including the following:- The Management of Health and Safety at Work Regulations 1999 (as amended in 2003 and 2006)
- The Work at Height Regulations 2005 (as amended in 2007)
- Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013
- The Health and Safety (First-Aid) Regulations 1981
The CDM Regulations
The CDM Regulations place duties on everyone involved in the construction process to properly plan, design and carry out the project, including specific duties for clients, contractors and designers. Duties include preparing the construction phase plan, identifying risks, and liaising with stakeholders. However, client duties under the CDM Regulations do not normally apply to domestic clients, or clients who have work done to their home that does not relate to a trade or business. Even if client duties do not apply, Part 4 of the CDM Regulations applies to anyone who controls the way in which any construction work is carried out. This means self-builders must ensure that the work areas and methods they have asserted control over are reasonably safe. Most self-builders will fall into the domestic client category, so client duties from the CDM Regulations will likely not apply. But if you assert control over an aspect of the project, such as insisting on a certain means of access or deciding how a job will be done, then you will have duties under Part 4 of the CDM Regulations, regardless of whether you are a domestic client or not. Contractors, designers and other workers hired by the self-builder (client) will still have duties under the CDM Regulations for both domestic and commercial projects.Common Self-build Methods
The following are examples of common self-build methods and how health and safety laws may apply. If you are unsure about whether health and safety laws apply to your specific situation, consult with the HSE.- Contractors. If you hire or appoint a contractor/principal contractor to oversee, manage and complete all of the work, then you probably will not have any duties under the Health and Safety at Work etc Act 1974. However, you may have duties under Part 4 the CDM Regulations if you assert control over any aspect of the construction work. Regardless of whether you have duties or not, you should ask your contractors about their health and safety procedures and safety records.
- Self-managed projects. If as a self-builder you manage the overall project and supplement do-it-yourself labour by hiring contractors, subcontractors or workers to complete specific tasks, Part 4 of the CDM Regulations will likely apply because you are exercising control and managing the construction work. Under the regulations, you have a duty to make sure that the work under your control is being carried out safely, hired contractors are competent, on-site risks are properly controlled and everyone on-site cooperates with one another. If you employ workers, you will also need to comply with the Health and Safety at Work etc Act 1974 and other relevant employer health and safety legislation.
- Do-it-yourself. If you decide to do all of the work yourself, health and safety legislation will typically not apply. Even though there are no formal health and safety requirements for self-builders, it is still best to follow HSE recommendations and guidelines to ensure that your self-build project is a safe and successful endeavour. Be sure to follow relevant legislation for construction work in different areas of the self-build. For example, in order to work on domestic gas fittings, you must be certified and registered on the Gas Safe Register.