While the owners own land with #________ ___ (address of the land on which the construction is carried out) and wish to build a house on said land, in accordance with the chartered architect`s plan and the specifications, steps and quantities that are attached to this contract and are part of this agreement. Costs or cost-plus: In a Cost Plus contract, the owner reimburses the contractor for all costs incurred during construction, such as equipment and work. The owner also pays an agreed profit margin, usually a flat fee or a percentage of the total cost. It is necessary to conclude an employment contract for the construction of the house in India between the owner and the subcontractor to mention all the construction work that is included and excluded from the contractual agreement. 18.