What was once a very bland apartment complex on the edge of Paris has been refurbished into a gleaming high-rise that saves a lot of resources and greatly enhances residents' quality of life. Tour Bois-le-Prêtre started out in the late '50s as a modernist housing block, and it underwent a disastrous remodel in the early '90s. Fortunately, Frédéric Druot Architecture came to the rescue with a total remodel of the façade, and they extended the apartments to infuse the living spaces with light while dramatically increasing the amount of floor area and doubling their energy efficiency.