This report provides an in-depth analysis of accommodation services, using Marriott Hotel as a case study. It begins with an introduction to accommodation services and their significance in the hospitality industry, highlighting the vast opportunities they present. The report then delves into the key roles of the housekeeping department, including maintaining cleanliness, managing guest rooms, and handling HR concerns and scheduling. It emphasizes the importance of forecasting linen stock and other guest supplies to meet demand, detailing how Marriott manages guest loan items and cleaning equipment. The report also explores the crucial interrelationships between the housekeeping department and other departments, such as the front office, and the significance of computerized maintenance management systems. Furthermore, it discusses the importance of scheduling maintenance and repair work to minimize disruptions to guests and the role of security in ensuring guest and staff safety. The conclusion summarizes the key findings, reinforcing the value of accommodation services in the hospitality sector and the role of online platforms in influencing service quality.