The primary objective of this thesis is to develop a business plan for opening a retirement home with a focus on Alzheimer's disease. The thesis is divided into theoretical and practical part. The theoretical part clarifies the concept of Alzheimer's disease and defines the basic concepts related to entrepreneurship and business plan. In the practical part, a specific business plan is developed, which consists of a description of the business opportunity, basic information about the company, market analysis, staffing, marketing and financial plan, investment evaluation and risk analysis. This thesis aims to be usable and useful background document for the author as well as for the company itself, on the basis of which it would be possible t...