In this article, we look at the role of density in neighbourhood satisfaction. Our context is a Nordic capital area experiencing increasing densification and growing segregation. In theory, given internationally low segregation levels and preventive segregation management, it could be expected that neighbourhood satisfaction would not show significant variation across neighbourhoods in the Helsinki metropolitan area. However, our findings suggest that spatial variation in neighbourhood satisfaction persists despite equalising measures. It is associated with neighbourhood density: after controlling for neighbourhood centrality, neighbourhood satisfaction declines as density increases. This association seems to be mediated by population composition and tenure structure. Understanding the role of density in neighbourhood satisfaction and subjective well-being is crucial for assessing the societal implications of the current planning paradigm of densification. As residential perceptions form part of segregation dynamics, subjective experiences across different social and spatial contexts, particularly negative ones, can help understand and potentially mitigate segregation trajectories.