A stipulated price contract is the most familiar way to buy construction in Canada, and for many Okanagan owners it is the first one they are offered. The contractor agrees to complete a clearly defined scope of work for a single fixed price, and the owner knows the number before the first shovel goes in the ground. That certainty is valuable when financing is tight, but it only works when the scope, drawings, and expectations are settled before the price is set.
How a Stipulated Price Contract Works
Under a stipulated price contract, often called a lump sum contract, the contractor prices the complete set of drawings and specifications and commits to deliver that scope for a fixed amount. In Canada, the most widely used form is the CCDC 2, which sets out the rights and responsibilities of the owner and the contractor in a standard, well-tested format. Because the price is fixed, the contractor carries the risk of cost increases that fall within the defined scope, such as a rise in lumber prices or a subtrade that comes in over budget.
The owner pays through monthly progress claims based on the percentage of work completed, less the statutory holdback required in British Columbia. The contract price only changes when the owner directs a change to the scope or when a compensable event, such as a differing site condition, is formally recognized. This clear, document-driven structure is a big reason the stipulated price approach has remained the default for so many private and public projects across British Columbia.
When a Stipulated Price Contract Makes Sense
A fixed price works best when the design is complete or very nearly complete at the time of tender. Straightforward commercial buildings, standard townhome and apartment forms, and repeat building types are good candidates because the scope can be described fully on paper and priced with confidence. Lenders and equity partners in Kelowna also tend to like the structure, since it gives them a defined construction cost to underwrite.
It is less suitable when the design is still evolving, when site conditions are uncertain, or when the owner wants to start early on a fast-track schedule. In those cases, owners often compare it against open-book options, and our guide to lump sum versus cost-plus construction contracts explains how to weigh the trade-offs.
What Owners Give Up in Exchange for Price Certainty
Price certainty is not free. Because the contractor is pricing risk, bids typically include contingency for the unknowns, and the owner does not see how that money is built up or whether it is ever spent. The owner also gives up some flexibility, since every change after award is priced and negotiated rather than simply absorbed into an open budget.
The delivery method matters as well. A stipulated price contract is the natural fit for a traditional approach where the design is finished first and then tendered, which is the model we compare in design-build versus design-bid-build. That sequence adds time before construction can start, and the contractor is brought in after the major design decisions have already been made, which limits their ability to suggest savings.
Protecting Your Budget After the Contract Is Signed
A fixed price does not mean a fixed final cost. Most budget movement on a lump sum project comes from changes to scope, and a disciplined approach to construction change orders is what keeps those changes visible, priced, and approved before the work proceeds. Owners should insist on written pricing for every change, with a clear record of the effect on both cost and schedule.
The quality of the tender documents is the other major factor. Gaps and conflicts in the drawings are the most common source of disputes, because a contractor who priced one interpretation will naturally resist delivering another at no charge. A thorough review of the documents before tender, along with a realistic owner contingency held outside the contract, protects the relationship and the budget alike.
How Team Construction Approaches Stipulated Price Contracts
We review the drawings, scope, and trade packages with the owner before any price is committed, so that the fixed number reflects what will actually be built, and we track every change against that baseline from the first week of construction. If you are weighing contract types for a commercial or multi-family project in the Okanagan, talk to our team about the right approach for your project.