An architect agreement is a legally binding contract between an architect, architectural firm, or client, confirming that the service provider will perform architectural work in exchange for financial compensation. Whether you’re an architect or a client, having a solid legal document will protect you when one party fails to make payments or delays the project. The most common types of architectural work include residential, corporate, and governmental buildings. However, some architects also work on interior design projects, garden designs, renovation works, and heritage building preservation projects.