The author of this post made other posts, including one discussing the building generation: https://www.justinobeirne.com/new-apple-maps https://www.justinobei

The author of this post made other posts, including one discussing the building generation: https://www.justinobeirne.com/new-apple-maps https://www.justinobeirne.com/new-apple-maps It appears to be a combination of algorithmic work from satellites with manual generation mixed in.