Which document is a part of the letter to the client?

The Design Principles Summary is often included in letters to the client to provide them with a concise overview of the design intent and underlying architectural concepts, ensuring that the client is aligned with the proposed vision. This document serves as a communication tool to articulate the key design elements and philosophy, which informs the client about how the design meets their needs and objectives.

Including a Design Principles Summary fosters transparency and fosters a collaborative relationship between the architect and the client. It is important because it allows the client to understand the rationale behind design choices, which can facilitate discussions about aesthetics, functionality, and overall project goals. Furthermore, it helps to ensure that the client's expectations are met throughout the design process and that any feedback or revisions are rooted in a clear understanding of the design direction.

In contrast, documents like the Substantial Performance Certificate are typically formal acknowledgments regarding the completion status of construction work and are not directly part of ongoing client communication about design intent. Similarly, financial statements and contract agreements focus more on financial or legal obligations, whereas the Design Principles Summary is specifically tailored towards articulating the design vision in the context of client relations.