High-SEND schools: Patterns and pressures in mainstream provision
20 May 2026
Pupils with special educational needs and disabilities (SEND) are not evenly distributed across England’s mainstream schools. Instead, they are increasingly concentrated in a subset of schools. Understanding why pupils cluster in particular schools, and how this affects school capacity, pupil experiences, and system-level fairness, is essential for designing a sustainable and inclusive SEND system.
Drawing on national pupil data, a nationally representative survey of 800 special educational needs co-ordinators (SENCOs) and senior school leaders, and in-depth interviews with high-SEND case study schools, comparison schools, parents and local authorities (LAs), this report builds on our earlier scene-setting report and explores why pupils with SEND cluster in certain schools and what this means for schools, pupils and families.
Key Findings
- The concentration of pupils with SEND appears to be driven by a structural steering effect: pupils are pulled towards certain schools with reputations and expertise in inclusion and pushed towards them when capacity in other schools is constrained.
- This is reinforced by variation in school practices, with some schools less willing to develop a reputation for inclusion or actively discouraging admission of pupils with SEND. whether due to capacity pressures or concerns about performance measures.
- Some inclusive schools become known as places that will “make it work”, shaping parental choice and local authority placement decisions.
- Leaders said that schools with strong reputations for inclusion were often treated as default or “last resort” placements when specialist capacity was limited, meaning they were expected to take pupils, even where needs could not always be met safely or sustainably.
- Pupils with SEND in high-SEND schools are less likely to move schools than their peers with SEND in other settings.
- Concentration leads to both strength and strain. High-SEND schools (schools with above-average proportions of pupils with SEND compared with their local area and nationally) often have stronger inclusive practice – but also face heavier workloads, financial pressure and increased complexity of need.
- Not all SEND needs can be met in mainstream schools; with staff and parents reporting that some pupils require specialist provision in order to be supported safely and effectively.
- High-SEND schools are more likely to serve disadvantaged communities, meaning that the pressures associated with higher concentrations of need are not evenly shared across the system.
- While many schools say Inclusion Bases can strengthen expertise and support pupils within mainstream schools, our evidence shows provision and integration are currently uneven, with many schools facing significant staffing and resource pressures in delivering them.