Although it is generally accepted that construction organisations should foster a strong safety culture in order to improve productivity and minimise incidents, little research has been focused on developing instruments to measure the maturity level of safety culture. This paper describes a research study on the development of measurement criteria to assist construction organisations in assessing and understanding their safety culture maturity levels. The components, dimensions, and maturity levels of safety culture were reviewed and measurement criteria for each maturity level in the context of the construction industry were defined. These criteria were aimed at helping construction organisations to determine their safety culture maturity levels, thus giving a starting point to strategise in developing their safety culture. Future research will focus on testing and validating the measurement criteria to determine their practicability.