The project involves the construction of an integrated and cohesive complex comprising: (i) a building (ground floor + 4 storeys) for the main building; (ii) a conference hall; (iii) a cafeteria; (iv) a secured checkpoint at the main gate; (v) ancillary technical rooms; (vi) a guardhouse block + outdoor restrooms; and (vii) the complete renovation of the fence on non-adjacent sides.

The various levels are organized according to the technical documents (See floor plans for the various levels).
On the 4th floor terrace, there will be a staircase exit and a technical room for the installation of a mini solar energy plant powered by photovoltaic panels.

Prequalification applications must be submitted no later than 5 august, 2026, at 10:00 a.m., as follows:
- In a sealed envelope clearly marked: “Prequalification application for the conduct of the works of the NBA Headquarters’ Construction Project in Niamey”, to the address below, and: Secrétariat Exécutif de l’Autorité du Bassin du Niger (ABN) ; 288, Avenue du fleuve Niger, Quartier Plateau, Niamey, BP: 729, (Niger); Tel.: +227 20 31 53 75; E-mail: - In an electronic format as password-protected PDF files: (i) to and (ii) on a USB drive inserted in the previously-mentioned envelope containing the physical copy of the submission file.
The name of the person holding the password, along with his/her phone number, Skype ID and email address must be mentioned in the email.

The NBA Executive Secretariat will contact that person to obtain the password when the evaluation committee will be about to open the files. Bidders must not accept password requests from other individuals.
Passwords must be provided, upon request by the NBA Executive Secretariat, exclusively via email to the following address:

- The opening of submitted physical prequalification files will take place on the same day at 10:30 a.m. in the presence of bidders who wish to attend, at the same address of the Executive Secretariat of the Niger Basin Authority mentioned above.