Construction of Gabion Structures at Lowveld Botanical Garden.
Mr. Tanaka Mupudzi
Compulsory briefing — you must attend to bid
15 September 2026 at 10:00 · Lowveld National Botanical Garden
In plain English
The South African National Biodiversity Institute is seeking a contractor for the construction of gabion structures at the Lowveld National Botanical Garden in Nelspruit. Bidders must have a CIDB contractor grading of 3CE or higher.
Always check the official documentDescription
The South African National Biodiversity Institute (SANBI) invites contractors to bid for the construction of gabion structures at the Lowveld National Botanical Garden in Nelspruit. The project involves clearing debris, dismantling damaged structures, and installing new Class A galvanized hexagonal mesh gabion baskets and Reno mattresses. Key tasks include excavating, leveling, compacting, and installing geotextile materials. Due to limited machine access, most work must be performed by hand. The project requires strict adherence to environmental management and health and safety regulations. The contract is a re-measurement type with fixed rates for the duration of the project. Bidders must provide proof of access to specific construction plant equipment and demonstrate experience through five verifiable reference letters for similar projects completed within the last decade. The work must be zoned off to protect the surrounding environment.
What you need to qualify
- CSD registration — Registration on the Central Supplier Database — required to do business with government.
- CIDB grading (Grade 3 Civil Engineering (3CE)) — A Construction Industry Development Board grade in the right class of works.
- Letter of Good Standing — COID registration and a Letter of Good Standing from the Compensation Fund.
- Other registration — An industry registration the tender requires (e.g. PSIRA, NHBRC, a professional or trade licence).
Full requirements
- Minimum CIDB grading of 3CE
- SACPCMP registration for Health & Safety Officer and Contracts Manager
- Site Agent must hold NQF6 or higher in built environment
- Valid COIDA Letter of Good Standing
- Proof of access to TLB, roller, tipper truck, and bakkie
- Five verifiable positive references for similar projects
- Bank letter confirming account conduct and credit rating
- Proof of valid liability insurance
- Active CSD registration report
- Active CIDB contractor listing
Contact & how to apply
Name: Mr. Tanaka Mupudzi
Email: T.Mupudzi@sanbi.org.za
Phone: 012-002-5201
How to apply: Submit bids using a two-envelope system. Envelope A must contain financial documents, and Envelope B must contain the technical proposal and a USB drive. Deliver sealed packages to the Biodiversity Centre, Pretoria National Botanical Garden, 2 Cussonia Ave, Brummeria, Pretoria, Gauteng.
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