Build with Clarity from the Start
In residential construction, not every project follows the same structure. Some projects involve a full design team working alongside a contractor. Others move forward with completed plans, where the builder’s role is strictly focused on construction.
When roles are not clearly defined, confusion follows. The scope becomes unclear. Responsibilities overlap. Decisions slow down. What should be a straightforward build becomes harder to manage.
The A111™ – Agreement Between Owner and Home Builder for Construction of a Single-Family Home was developed to address this type of project. It provides a clear, standardized contract for residential construction when the builder is responsible for construction only.
What Is the A111 Agreement?
The A111 is an agreement between an owner and a home builder for the construction of a single-family residential project. It is used when design services are not part of the builder’s scope. The project plans are already complete, or the design is handled under a separate agreement.
As part of the AIA residential contract documents, the A111 provides a consistent framework for defining scope, managing payment, and aligning expectations during construction.
At its core, the purpose of the A111 is straightforward:
- Define the construction scope clearly.
- Separate design and construction responsibilities.
- Create a predictable process for managing the build.
How A111 Fits Within AIA Residential Contracts
The A111 agreement is part of a series of AIA residential contract documents developed specifically for home building. The documents provide a consistent framework for residential construction that can be used together or alone based on the project structure.
- A110™ is used for custom residential projects with a contractor. What is the A110?
- A111™ is used when the builder performs construction only.
- A112™ is used when the builder provides both design and construction. What is the A112?
- B110™ governs the relationship between the owner and architect. What is the B110?
These agreements align the project team on design, construction, and decision-making.
When Should You Use the A111 Agreement?
The A111 is best suited for projects where the scope is already defined before construction begins.
Use A111 when:
- The project design is complete.
- The owner hires a builder for construction only.
- There is a separate agreement for architectural services.
- The project does not require ongoing design coordination during construction.
For projects where the builder also provides design services, use the A112. What is the A112?
How Does the A111 Agreement Benefit Owners?
A111 Creates Clear Separation of Responsibilities for Owners
For owners, one of the biggest advantages of the A111 is clarity. Design and construction are handled separately, which makes it easier to understand who is responsible for each part of the project. This reduces confusion and helps avoid overlapping responsibilities that can slow progress.
A111 Enables Predictable Construction Process for Owners
The A111 establishes how work is performed, how payments are structured, and how issues are addressed. With a clearly defined scope, owners can move into construction with greater confidence. This creates a more predictable experience throughout the build.
How Does the A111 Benefit Builders?
A111 Reduced Scope Ambiguity for Contractors
For builders, the A111 provides a clear definition of the work to be performed. Because design is already complete, there is less uncertainty about what is included in the project. This reduces the risk of rework and misinterpretation.
Better Control Over Construction Execution
The A111 allows builders to focus on execution without managing ongoing design decisions. This creates a more efficient workflow, where construction activities can move forward without delays caused by evolving scope.
Why the A111 Agreement Matters Early in the Project
Projects that use A111 benefit from early clarity. When the agreement is aligned with a completed design, teams can move into construction with fewer unknowns. Roles are defined. Scope is established. Expectations are aligned before work begins.
Waiting to define these terms later often leads to confusion and inefficiency. Understanding when to use A111 allows teams to structure the project correctly from the start.
A Clear Path for Residential Construction
Not every residential project requires ongoing design involvement during construction. For projects with a defined scope and separate design services, the A111 provides a straightforward, standardized approach to managing construction. It creates clarity, reduces risk, and supports more predictable project outcomes for both owners and builders.
Explore the A111 and the full suite of AIA residential contract documents.
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