Under the Construction (Design and Management) Regulations 2015 (CDM 2015) a construction phase plan is required for every construction project. This does not need to be complicated.
If you are working for a domestic client, you will be in control of the project if you are the only contractor or the principal contractor.
You will be responsible for:
You could be a builder, plumber or other tradesmen, doing small-scale routine work such as:
A simple plan before the work starts is usually enough to show that you have thought about health and safety.
If the job will last longer than 500 person days or 30 working days (with more than 20 people working at the same time) it will need to be notified to HSE and it is likely to be too complex for this simple plan format.