California loses an estimated $8-12 billion in property tax revenue every year due to Proposition 13, a 1978 law that limits annual property tax increases for unsold property. Our team has built an interactive map that uses machine learning predictions and individual case studies to visualize property tax disparities across commercial properties in Los Angeles County. Our sponsor, TechEquity, hopes to use this map as a resource for the general public to increase awareness of the impacts of Proposition 13.