Hotel property management system development costs directly depend on your project requirements, its complexity, team size, number of required features, design, and so on. For example, building an MVP version with only essential features will take approximately ~1,000 hours. The average hourly rate in Eastern Europe is $50 per hour. Accordingly, the development will cost approximately $55,000.
But this is only a rough example of cost. The actual amount depends on your requirements and the specifics of the project.