When buying land in a residential area in Japan, many envision maximizing the space with a large, box-shaped house. However, the reality often involves a strict rule known as the "North-side Sloping Line Restriction. (北側斜線制限)" Simply put, to ensure sunlight for neighbors to your north, the law mandates a height limit for the northern side of your building. Depending on the plan, this might make a 3-story house impossible, or significantly reduce living space on the 2nd floor,

Finding a great deal on land is the first step toward your dream home. However, many buyers are shocked to discover that the "advertised area" and the "buildable area" are not the same. This is primarily due to Setback (Setback/道路後退)  regulations. In many older residential areas in Japan, roads are narrower than the required 4 meters. To ensure safety and access, the law requires you to set your building back from the center of the road. This "setback" portion cannot be built