Buy-to-Let is a property investment strategy where an individual purchases a residential property with the intention of renting it out to tenants. This approach allows the owner to generate rental income while potentially benefiting from property value appreciation over time. Investors often finance these purchases through a Buy-to-Let mortgage, which is specifically designed for this purpose. The rental income can help cover mortgage payments and other property-related expenses, making it a popular choice for those looking to build wealth through real estate.