To progress with their learning, students need to be able to make judgements about the quality of their own work and the work of others. This capability is known as evaluative judgement. The importance of evaluative judgement is well-established, but environments in which learners practice this capability remain unknown. This paper explores whether learners practice evaluative judgement within qualitative self-assessment. We conducted a thematic analysis of students' qualitative self-assessments from years one, three and four of construction management and building surveying courses and analysed approximately 430 pages of text. Our analysis indicated that learners often practised evaluative judgement during qualitative self-assessment even when such pedagogical activity was not specifically designed for this purpose. While constructing their professional knowledge, learners made evaluations of the quality of work, their own and the work of others. Based on our findings, we recommend that qualitative self-assessment is embedded within curricula to enable learners to practice evaluative judgement.