Technical Assessment and Refurbishment of the Telecommunication Tower and Building in United Nations Office at Nairobi (UNON).

OSCM/REOI v2023-01 [EN] UNITED NATIONS OFFICE AT NAIROBI REQUEST FOR EXPRESSION OF INTEREST (EOI) This notice is placed by UNON. The accuracy, reliability and completeness of the contents of furnished information is the responsibility of UNITED NATIONS OFFICE AT NAIROBI . You are therefore requested to direct all queries regarding this EOI to UNITED NATIONS OFFICE AT NAIROBI using the fax number or e-mail address provided below.

Title of the EOI:

Technical Assessment and Refurbishment of the Telecommunication Tower and Building in United Nations Office at Nairobi (UNON).

Date of this EOI: 19 August 2026 Closing Date for Receipt of EOI: 2 September 2026

EOI Number: EOIUNON24637

Beneficiary Country/Territory: Kenya

Commodity/Service category: Engineering Design and Construction

Address EOI response by fax or e-mail to the Attention of: Wangui Ndegwa And Samuka Bawoh

Fax Number: N/A

E-mail Address: [contact details removed]

UNSPSC Code:

72000000 - Building and Facility Construction and Maintenance Services 95101707 - Telecommunication site 95121806 - Mobile telephone base station 43200000 - Components for information technology or broadcasting or telecommunications DESCRIPTION OF REQUIREMENTS UNON seeks the services of a skilled and qualified multidisciplinary vendor to refurbish the communications tower and associated building. The comunications tower is a self supporting lattice tower of about 70 meters high, constructed in 2010 together with the communcations building. Both facilities host and support RF-based services, including HF, VHF, UHF, C-band, microwave, mobile network, satellite and radio equipment and related services. These systems are critical to emergency communications, air dispatch, vehicle fleet continuity and hosted mobile services. Since construction, the tower and building have remained in continuous use, with no significant maintenance works undertaken. Refurbishment has been identified as the preferred option, as it addresses the structural and safety complaince issues while maintaining ongoing operations. The above assignment is to be undertaken it two phases namely: 1) Phase 1 (Technical Assessment and Design): This will include undertaking a technical assessment, design validation of the tower, building and related infrastructure and refurbishment design and implementation plan.

2) Phase 2 (Construction Works): this will include the implementation of the approved scope of

refurbishment works on the tower, comms building and related infrastrucure. UNON will review the technical report submitted by the vendor at the close of phase 1, and progression to phase 2 will be subject to UNON's approval of scope and confirmation of technical and financial feasibility. Scope of Assignment The Client’s preliminary understanding of the required works is outlined below; the service provider shall …

Commodity group: Engineering Design and Construction

Issued: 19 Aug 2026

Expression of Interest issued by the United Nations Procurement Division.