FORM OF DESIGN-BUILD CONSTRUCTION CONTRACT. Within thirty days after the City receives an invoice, the.City shall send the Consultant a check or electronic funds transfer in payment for all undisputed. The following sample CONSTRUCTION SUBCONTRACT AGREEMENT is for information and education purposes. What is a construction agreement? If you're a North Carolina construction contractor, you need to be good at writing North Carolina construction contracts. Interpretation: This Agreement shall be construed and enforced under the laws of North. Carolina. You should apply for the license in the name you are planning to bid, contract, and operate. Fill out your document or prepare it for other contributors.