The new two-storey palace is believed to have been designed by colonial architect George Drumgoole Coleman as some of its architectural features are similar to those of other buildings Coleman designed, although there is no definitive evidence that it was designed by him.
Istana dua lantai yang baru ini diyakini telah dirancang oleh arsitek kolonial George Drumgoole Coleman karena beberapa ciri khas arsitekturnya mirip dengan bangunan lain yang dirancang Coleman, meskipun tidak ada bukti pasti bahwa istana baru ini dirancang olehnya.