This report provides a comprehensive analysis of the London Heathrow Airport (LHR) expansion plans, examining the planning considerations for improving runways and terminals through a timeline analysis. It identifies and justifies the most significant planning challenges impacting LHR, including land acquisition issues, lack of complete support, financial constraints, and multiple conflicting plans. A stakeholder analysis of four primary groups—business sector, aviation sector, environmentalist groups, and local authorities—is presented, along with two key arguments from each perspective regarding the expansion plans. The report concludes with a balanced and justified decision regarding the expansion, offering valuable insights into the complexities of airport planning and stakeholder management within the aviation industry.