A commercial space rarely becomes functional the moment a tenant receives the keys. The layout, services, finishes, and internal features need to be planned and installed before the business can operate. This process is known as a fitout. Understanding what is a fitout and why it\'s important helps property owners, tenants, and project managers make better decisions before starting a commercial build or renovation. A fitout transforms an empty or outdated space into a working environment that supports daily operations, customer experience, and business goals. Whether it is an office, retail store, hospitality venue, or industrial facility, what is a fitout and why it\'s important comes down to how well the space is prepared for its intended purpose. A properly planned fitout can improve efficiency, compliance, and long-term usability. For businesses planning a new tenancy or preparing for a lease transition, understanding the connection between fitout, Defit and Makegood, and professional Defit Services can prevent expensive mistakes later.