Urbanization control areas are, in principle, zones where houses cannot be built. In fact, however, rebuilding may be possible if certain conditions are met. These conditions are highly complex and not widely known, leaving many people unaware of possible rebuilding options and unsure whom to consult, causing them to give up on selling or utilizing their properties. Dream Planning Co., Ltd. of Naka-ku, Yokohama, Kanagawa Prefecture, represented by Tatsuhito Takahashi, conducted a survey through URUHOME, its real estate problem-solving website, asking 353 people interested in real estate whether they knew the conditions under which rebuilding is possible in urbanization control areas. The survey was conducted from February 21 to March 16, 2026. Respondents consisted of 199 men, about 56%, and 154 women, about 44%. By age group, people in their 40s accounted for the largest share at 35.1%, followed by those in their 30s at 28.3%. The results showed an overwhelming lack of knowledge about exceptional conditions that may allow rebuilding in urbanization control areas. The most common response was “I know almost nothing,” selected by 171 respondents, or 48.4%. This was followed by “I understand that construction is difficult,” selected by 73 respondents, or 20.7%, and “I did not even know the term urbanization control area,” selected by 49 respondents, or 13.9%. Other responses included “I know farmers may be allowed to build” at 12.7%, “I know it may be possible on former existing residential land” at 9.9%, “I understand that land-use changes are difficult, but construction may be possible if the use can be changed” at 7.4%, “I know construction may be possible if the site meets local government development permit standards” at 7.1%, “I know construction may be possible if it falls under Article 34 of the City Planning Act” at 4.2%, “I believe no buildings can be built at all” at 2.3%, and “I know logistics facilities may be allowed depending on the location” at 1.4%. T