The consultation is divided into 5 lots:

- Montfermeil (93)

- Le Plessis Treviso (94)

- Verrières le Buisson (91)

- Cergy (95)

- Conflans Sainte Honorine (78)

Firm slice: Follow-up end of site-Assistance reception and delivery

2 Conditional tranches: see the consultation regulations

Firm slice: End of construction follow-up - Reception and delivery assistance

2 optional tranches: see the consultation regulations

Firm slice: Site monitoring

19 conditional tranches: see the consultation regulations

Firm tranche: Assistance in the preparation of this work

4 conditional tranches: see the consultation regulations

Firm slice: Assistance in the constitution of diagnoses

16 conditional tranches: see the consultation regulations