The typical costs of the development team are related to the recruitment process, payroll, hardware, and licenses, of course, the office space, sick leaves, holidays, and perks.
Define better the requirements
People will spend less time on discussions, meetings and evaluation of tasks when you will define them well. It doesn’t mean you have to dive into the code, functions and methods and describe project development that you need. Once you define the user’s needs, describe the expected behavior and flow, discuss and keep in mind your technology limitations and describe the business value and how you will accept the work, this will help a lot!
Prioritize and plan right features and focus on value
Lack of proper planning and frequent changes in the roadmap (pivots) makes the development harder because developers works on assumptions you provide. Every architecture and database can be changed, of course, but the question is the amount of work, which rises exponentially with the complexity of your solution.