Purpose: The purpose of this paper evaluates the capacity of the Cornwall Foundation Trust (CFT) of the National Health Service (NHS) to implement the UK Government's children and young people's mental health strategy through its school-based integrated health centre (SBIHC) delivery model. Design/methodology/approach: This evaluation uses six case studies of SBIHCs to indicate the general effectiveness of this delivery model and its capacity to implement the three core proposals of the Government's strategy. The core proposals are: to encourage all schools and colleges to identify and train a designated senior lead (DSL) for mental health; to fund new mental health support teams (MHSTs); and to develop strategies to meet the proposed four-week waiting time for access to specialist NHS mental health services. Findings: This evaluation found that the Duchy Health Charity and CFT piloted a new delivery model in three SBIHCs from 2009 that successfully integrated health and educational services to children and adolescents, including general health and well-being and sexual and mental health and, more recently, integrated welfare services. Research limitations/implications: The main research implication is that longitudinal case studies of organisational innovations can reveal the subtleties of educational management in context and potentially inform advances elsewhere consistent with national policy developments. Practical implications: The main practical implication is that the SBIHCs at Penair Community School, Budehaven Community School, Hayle Community School, Looe Community Academy, Treviglas Community Academy and Wadebridge Community School should each be recognised as a "trailblazer site" in the implementation of the Government's children and young people's mental health strategy. Social implications: Mandatory secondary education is the last opportunity that the UK society has to embed knowledge, skills and attitudes needed for the life-long self-management of health. The CFT's SBIHC model trialled since 2009 has successfully integrated health and educational services to children and adolescents, including general health and well-being and sexual and mental health and, more recently, integrated welfare services. Originality/value: This evaluation research is unique. It reports that the CFT's SBIHC model is the first and only organisational innovation at a system level in the UK that has successfully integrated health and education services to children and adolescents.