Architectural education plays a fundamental role in achieving sustainable development by training future professionals who can contribute to sustainability through their practice. Nevertheless, to ensure the introduction of sustainable development in the education of future architects, it is fundamental to understand what is being done and what could be improved. Despite this, a big gap has been detected in the assessment of architectural education in Spain and worldwide. Thus, a close-ended questionnaire for students has been designed based on the outcomes from a literature review, exploratory interviews with specialists, and the qualitative analysis of two schools of architecture. Additionally, it has been revised by experts, through the pilot study of a preliminary version, and with the supplementary analysis of the answers to a final test with students from different schools. In particular, this questionnaire allows for comprehensively measuring the students’ perception of their sustainability learning outcomes, their learning experience, and the connection between, with the aim of facilitating the adjustment of Spanish architectural education towards the introduction or enhancement of sustainable development by education managers, teachers, policymakers, and professional associations.