Construction of triple laboratories for science, home…

What is being bought

Construction of triple laboratories for science, home science and computer on top of the existing ground floor classrooms at St Lwanga Primary & Junior School, Changamwe Constituency, Mombasa County (tender CHA/NG-CDF/05/2026-2027). The invitation states the contract period is 4 months.

What could disqualify you

Any form of canvassing will lead to disqualification. D1 p.1
Late tenders will be rejected. D2 p.2
Electronic tenders will not be permitted. Only physical hard copies are accepted. D2 p.2
Any tender not accompanied by a substantially responsive tender security will be rejected as non-responsive. Standard rule D2 p.12
A tender valid for a shorter period than required will be rejected as non-responsive. Standard rule D2 p.12
Failure to submit the information required on ownership and control will lead to rejection of the tender. Standard rule D2 p.11
Tenders quoting in currencies other than Kenya Shillings will be determined non-responsive and rejected. Standard rule D2 p.17
Preliminary evaluation: forms not correctly filled, signed and stamped, and an unsigned or unstamped tender document, will fail the preliminary examination. The pre-tender site visit certificate must be signed, stamped and match the attendance register. D2 p.26

Key facts

Closing: Thu 12 Nov 2026, 10:00 am
Submission deadline: 12 November 2026 at 10:00 am. The portal record shows the same date and time, and no addenda were included in the material. D2 p.23
Bid / tender security: Tender security of KES 400,000 from a financial institution recognised by the Central Bank of Kenya or an insurance company approved by PPRA, in the form of a demand guarantee, banker's cheque or similar. Tender-securing declaration not required. Criteria state validity of 210 days from tender opening. D2 p.23
Tender fee: Tender document fee: KES 1,000 non-refundable, paid in cash or by banker's cheque. Tender documents obtained electronically from the website are free of charge. D2 p.2
Site visit: Mandatory
Pre-arranged pre-tender site visit on 7 November 2026, 11:10 to 11:30 am, at St Lwanga Primary School. Attendance is not stated as compulsory, but preliminary evaluation requires a signed and stamped site visit certificate matching the attendance register, so treat as mandatory. D2 p.22
Pre-bid meeting: Optional
No pre-tender conference will be held. Only the pre-arranged site visit is scheduled. D2 p.22
Reserved for: Conflict: the portal lists the reservation as women, but the tender data sheet (ITT 35.2) says NOT RESERVED. The data sheet also has youth/women groups only for a KSHS 50,000 branding subcontract (ITT 36.3), which is not a reservation of the contract. Ask the procuring entity. Conflicting D2 p.24
Contract value: Not stated in the documents we reviewed Not stated D2
Tender opening: Public tender opening on 12 November 2026 at 10:00 am in the NG-CDF Changamwe office boardroom. Tenderers' designated representatives may attend. D2 p.24
Tender validity: Conflict: the tender data sheet says tenders remain valid for 270 days, while the invitation says 210 days from the date of opening. Ask the procuring entity which applies. Validity runs from the submission deadline per ITT 20.1. Conflicting D2 p.23

Who can apply

Open tender. Tendering is open to all qualified and interested tenderers holding a business permit of Mombasa County. The data sheet states that the Mombasa County business permit is required. D2 p.2
Joint ventures are NOT PERMITTED for this tender (maximum number of JV members is stated as not permitted). D2 p.22
Registration with the National Construction Authority is not a condition for tender but must be obtained before contract award and signature. The preliminary evaluation table, however, asks for a valid NCA registration at NCA 7 or above at tender stage. See conflicts. Conflicting D2 p.7

Application checklist

Tick items off as you prepare. Your ticks stay on this device only.

Required from every bidder

Required only in some situations

Kenyan tenderers must provide evidence of tax obligations fulfilled, by a valid tax clearance or tax exemption certificate from KRA. This applies to Kenyan tenderers. Standard rule D2 p.7

Experience, licences and financial capacity

Technical

Experience in building works: 3 years and above earns 15 marks; less than 3 years is scored pro rata. Experience is counted from the first LPO or contract, with copies attached. Scored, not pass/fail. D2 p.26
Magnitude of building works done in 2020 to 2026: 5 million and above earns 20 marks; less is pro rata. Scored, with LPOs or contracts and completion certificates attached. D2 p.26
Specific experience: a minimum of 3 similar contracts satisfactorily and substantially completed as prime contractor, JV member, management contractor or sub-contractor between 1 January 2020 and the tender deadline. Minimum value not applicable. Similarity per Section IV. D2 p.31
General construction experience for at least the last 5 years, starting 1 January 2020, as prime contractor, JV member, sub-contractor or management contractor. D2 p.30
Project manager with a degree, diploma or certificate in building construction, civil engineering or a relevant field, registered with EBK. Scored (degree 15 marks, diploma 10, certificate 5, KCSE 2). D2 p.27
Equipment holding: lorry, pick-up, water bowser, mixer and vibrator. Owned scores 10 marks; leased scores 5 marks. Attach logbooks, lease agreements or receipts. D2 p.27
Pass mark to proceed to the financial stage is 70 marks. D2 p.27

Financial

Cash flow: access to or availability of liquid assets, unencumbered real assets, lines of credit or other finance sufficient to meet the construction cash flow requirement estimated at KES 5 million for the contract, net of other commitments. D2 p.30
Minimum average annual construction turnover of KES 5,000,000, calculated as total certified payments received for contracts in progress or completed in 2020 to 2025, divided by 3 years. D2 p.30
Audited balance sheets (or acceptable financial statements) for 2023 and 2024 must be submitted and must show current soundness and prospective long-term profitability. The scoring table refers to audited accounts for 2024/2025 (see conflicts). Conflicting D2 p.30
Scored financial capacity: quick/acid-test ratio from audited accounts 2024/2025 (ratio of 1:1 and above earns 10 marks); bank statements (5 marks); letter of access to credit above KES 3 million (5 marks). D2 p.27

How and where to submit

Physical hard-copy submission only. Tenderers shall NOT submit tenders electronically. D2 p.24
Deliver in a plain sealed envelope marked with the tender number to the tender box at the office block (floor stated differently in the two documents; see conflicts), or post/courier to NG-CDF Changamwe, P.O. Box 82742-80100, Mombasa. D2 p.23
Tender box at the second-floor office or addressed to NG-CDF Changamwe P.O. Box 82742-80100 Mombasa, enclosed in a plain envelope marked with the tender number. D1 p.1
One original is required. The data sheet states the number of copies in addition to the original is 0. The original must be marked ORIGINAL and signed. D2 p.23
Tender must be in a single sealed envelope bearing the tender name and reference number, with inner sealed envelopes marked ORIGINAL and COPIES, each showing the procuring entity and tenderer names and reference number. Standard rule D2 p.13
Written questions on the tender must reach the Procuring Entity by 10 November 2026 at 16:00. D2 p.22

Lots and categories

No lots stated. The lot number and identification field in the data sheet is blank. Not stated D2 p.22

What the addenda changed

No addenda were included in the material reviewed. Not stated D2

Points to confirm with the procuring entity

The documents do not agree with each other on these points. Ask the procuring entity for a written clarification before you submit.

Tender validity period: Tender data sheet (ITT 20.1) says 270 days. The invitation to tender says tenders remain valid for 210 days from opening. The tender security criteria also use 210 days from opening. (D2 p.23 (TDS ITT 20.1); D2 p.2 (invitation item 6); D2 p.26 (criteria item 10))
Reserved group: Portal record lists reserved group as women. Tender data sheet ITT 35.2 says NOT RESERVED and the invitation does not reserve the tender. (P portal record; D2 p.24 (TDS ITT 35.2))
NCA registration timing: ITT 3.12 says NCA registration is not a condition for tender, only for award. Preliminary evaluation requires a valid NCA registration and practising licence at NCA 7 or above at tender stage. (D2 p.7 (ITT 3.12); D2 p.25 (preliminary evaluation item 2))
Financial statement years: Qualification form requires audited balance sheets for 2023 and 2024. The scoring table refers to audited accounts for 2024/2025. (D2 p.30 (qualification item 11); D2 p.27 (financial scoring))
Tender box location: Invitation says the tender box is at the second-floor office. Tender data sheet gives the submission office as 1st floor, NG-CDF Changamwe office block, Changamwe sub-county headquarters. (D1 p.1 (qualification item 5); D2 p.23 (TDS ITT 24.1))

Not covered in the documents we reviewed

Lots: none stated in the data sheet.
Contract value or cost estimate is not stated in the reviewed pages.
Bill of Quantities, drawings and specifications (Sections V to VII) were not reviewed.
Full evaluation criteria and tendering forms (Sections III and IV) were only partly reviewed.
Performance security amount and conditions (ITT 52, special conditions) were not reviewed.
Maximum subcontracting percentage (TDS ITT 36.2) is blank.
No addenda were provided.
Entire special conditions of contract and general conditions were not reviewed.
Whether NCA registration is required at tender stage (see conflicts).

Terms explained

TDS: Tender Data Sheet: the tender-specific rules that override the standard Instructions to Tenderers (ITT).
Tender security: Money guarantee (here KES 400,000) that a bidder provides with its tender, which may be forfeited if it withdraws or fails to sign the contract.
Responsive / non-responsive: A tender that meets all mandatory requirements is responsive; one that does not is rejected at preliminary examination.
CBK: Central Bank of Kenya, whose recognised financial institutions may issue tender security.
PPRA: Public Procurement Regulatory Authority, which regulates public tenders in Kenya and whose approved insurers may issue tender security.
NCA: National Construction Authority, which registers contractors for construction works in Kenya.
CR12: Company return showing directors and shareholders, issued by the Registrar of Companies.
Power of attorney: A written document authorising a named person to sign the tender for the company, here from a Commissioner of Oaths.
Pre-arranged pretender site visit: A visit to the works site organised before the tender deadline. The certificate of attendance is required for preliminary evaluation.
JV: Joint venture of two or more firms bidding together. Not permitted for this tender.
Canvassing: Lobbying or approaching officials to influence the award, which leads to disqualification.

Construction of triple laboratories for science, home science and computer at St Lwanga Primary & Junior School, Changamwe