Just from a security stand point getting the Presidential office out of North Korean artillery range would be a smart move:
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Several government ministries will team up to help facilitate the construction of a second presidential office in Sejong City, an administrative area 144 kilometers south of Seoul, by 2027, according to government officials, Sunday.
Korea Times
Setting up a second presidential office and a legislative building in Sejong was a key campaign pledge of President Yoon Suk-yeol, a vision he believes will cement the sparsely populated city as the nation’s administrative capital. The plan gained traction after the National Assembly revised related laws in May.
The Ministry of Land, Infrastructure and Transport, Ministry of Interior and Safety and the National Agency for Administrative City Construction said a joint team of officials will commission a study before October to determine the function, size and location of the second office. Plans to strengthen the public transportation system and infrastructure in a broader context of city planning will also follow.
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