From the information board at the entrance to the garden:
During the Japanese occupation it was the house of a Japanese businessman. After the restoration of Korean independence it was utilized as a Western-style restaurant called Dongyang jang, and later used as a social club called Songhak jang as it had a beautiful garden.
In 1966 Incheon City purchased and reconstructed it into a Korean-style house and it was changed for the mayor's official residence.
The reconstruction plan was performed by Gapno Yoon, the 12th mayor, in February 1965, but the building began to be used for the mayor's official residence from Haedu Kim, the 14th mayor, in September 1966. This mayor's official residence has been famous for the beautiful garden overlooking Incheon Port. Until 2001 it was used by the previous 17 mayors who stayed here during their term of office.
Would have liked this shot more if the car hadn't been there...
The building has a rather nice garden with a great view of Incheon harbor.