The cost of developing a brand strategy in the UK can vary widely depending on the scope of the project, the agency's reputation, and the specific services required. On average, businesses can expect to invest anywhere from £10,000 to £50,000 for a comprehensive brand strategy. Smaller projects or consultations might cost less, while extensive rebranding efforts for larger corporations can exceed £100,000. It's essential to discuss your budget and goals with prospective agencies to find a solution that meets your needs and provides a good return on investment.