These 7 Île-de-France high schools in the North-East sector are public buildings of around 20,000 m² each, spread over different levels varying according to the establishments. Welcoming many high school and / or college students every day, these establishments must meet new regulatory requirements in terms of accessibility for people with disabilities. So that each trip is simple and unconstrained for everyone: upgrading sanitary facilities, stairs, elevators, creation of secure waiting areas …