Key messages

• the review identifies a wide range of community-based interventions across health, social and wellbeing settings
• interventions include peer support, self-help, exercise-based programmes and digital approaches
• many studies report positive effects on mental health and wellbeing outcomes
• some interventions incorporate elements of social integration and social care support
• outcome measures are uneven, with fewer studies examining harder endpoints such as hospitalisation or mortality
• limited attention is given to equity and subgroup analysis.

Policy implications

• community-based interventions may support neighbourhood health and care goals around prevention and wellbeing
• neighbourhood models could benefit from drawing on existing community and voluntary sector provision
• more consistent outcome measurement would support commissioning and scale-up
• equity considerations should be more explicitly built into intervention design and evaluation.

Gaps

• lack of standardised outcome metrics across studies
• limited evidence on long-term or system-level impacts
• fewer studies examine impacts on service use or clinical outcomes
• minimal focus on differential effects across population subgroups.

Commentary
This scoping review highlights the breadth of community-based interventions operating within the UK that contribute to mental health and wellbeing. The diversity of approaches reflects the range of ways communities support health outside formal clinical settings.

From a neighbourhood health and care perspective, these interventions align with preventive and place-based ambitions. Peer support, exercise and self-help initiatives can complement statutory services by addressing wellbeing, connection and resilience within local communities.

However, the review also exposes weaknesses in the evidence base. Outcome measures vary widely, making it difficult to compare interventions or assess their contribution to system-level outcomes such as reduced service use.

The limited focus on equity is particularly notable. Without subgroup analysis, it remains unclear which interventions work best for different communities or whether benefits are distributed evenly.

Overall, the review suggests that community-based interventions have potential value within neighbourhood health and care, but stronger evaluation and clearer attention to equity are needed to inform commissioning and integrated service design.