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A Cost Plus Construction Agreement is a specialized contract where you pay the contractor for actual project costs plus a predetermined fee or percentage. Under Nigerian law, this agreement type is governed by the Public Procurement Act 2007 and must comply with the National Building Code 2006, making it particularly valuable for complex projects where traditional fixed-price contracts may not be suitable.

When do you need this document?

You need a Cost Plus Construction Agreement when undertaking projects with uncertain scope, such as major infrastructure developments, industrial facilities, or specialized commercial buildings. This contract type is essential when you're renovating historic buildings where hidden structural issues may emerge, developing cutting-edge facilities requiring specialized technology, or working on government projects subject to Public Procurement Act requirements. It's particularly valuable for emergency construction work following natural disasters, research and development facilities, or any project where design changes are likely during construction. Many Nigerian clients choose this approach for high-value projects exceeding 鈧�100 million where cost transparency and flexibility outweigh the benefits of fixed pricing.

Key legal considerations

Your Cost Plus Construction Agreement must clearly define what constitutes reimbursable costs versus contractor overhead to prevent disputes. The contract should establish robust cost verification procedures, including requirements for receipts, invoices, and third-party audits. You must specify the contractor's fee structure, whether it's a fixed fee, percentage of costs, or sliding scale based on project performance. Include provisions for cost ceilings or guaranteed maximum prices to protect against runaway expenses. The agreement should address change order procedures, as cost-plus contracts are particularly susceptible to scope creep. Ensure you have strong project management and reporting requirements, including monthly cost reports and regular progress meetings. Consider including incentive clauses that reward the contractor for completing the project under budget or ahead of schedule.

Legal requirements in Nigeria

Under Nigerian law, your Cost Plus Construction Agreement must comply with the Public Procurement Act 2007, which mandates transparency in public sector projects and requires competitive bidding processes for government contracts. The agreement must adhere to the National Building Code 2006 standards for construction safety and technical specifications. You must ensure compliance with the Labour Act Cap L1 LFN 2004, including minimum wage requirements and worker safety provisions. Environmental Impact Assessment Act compliance is mandatory for projects affecting the environment. The Companies and Allied Matters Act 2020 governs corporate responsibilities and business operations. Include provisions for local content requirements as specified by Nigerian Industrial Revolution Plan policies. Ensure the contract addresses tax obligations under the Federal Inland Revenue Service regulations and includes appropriate withholding tax provisions for construction services.