Read together, Economy + Housing + Mobility + Green Access form one scoped view of Strasbourg. Economic output and the modelled apartment market rent frame productive strength against housing cost pressure; they do not, by themselves, measure household affordability. Public-transport stop density and green-space proximity describe two forms of local reach, but a route-level connection still requires journey-time evidence. Apartment market rent and public-transport stop density can be read together as cost-and-reach context, not as a neighbourhood affordability or transport-access relationship.