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We investigate the effect of urban land use on residential well-being in major German cities, using panel data from the German SocioEconomic Panel and cross-section data from the European Urban Atlas. We reduce concerns about endogeneity by employing fixed-effects (within) estimators, with individual and city of residence fixed effects, while controlling for a rich set of observables. The results show that access to green urban areas, such as gardens and parks, is positively associated with, whereas access to abandoned areas, such as waste or leftover land, is negatively associated with life satisfaction. The effects are strongest for residents who are older, accounting for up to a third of the size of the effect of being unemployed on life satisfaction. We calculate the marginal willingness-to-pay of residents in order to have access to green urban and abandoned areas in their surroundings, as well as the life-satisfaction maximising amounts of them. Finally, we provide a policy case study, while discussing limitations and avenues for future research.

Enriched environments elicit brain plasticity in animals. In humans it is unclear which environment is enriching. Living in a city has been associated with increased amygdala activity in a stress paradigm, and being brought up in a city with increased pregenual anterior cingulate cortex (pACC) activity. We set out to identify geographical characteristics that constitute an enriched environment affecting the human brain. We used structural equation modelling on 341 older adults to establish three latent brain factors (amygdala, pACC and dorsolateral prefrontal cortex (DLPFC)) to test the effects of forest, urban green, water and wasteland around the home address. Our results reveal a significant positive association between the coverage of forest and amygdala integrity. We conclude that forests may have salutogenic effects on the integrity of the amygdala. Since cross-sectional data does not allow causal inference it could also be that individuals with high structural integrity choose to live closer to forest.

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