House No.1 in Captain Bush Lane is part of Rattanakosin history. King Chulalongkorn (King Rama V) bestowed the land to his consort Princess Saisavali Bhiromya, and her children. The King requested the Privy Purse to manage the land by dividing it into two plots for leasing.
The first plot is where House No.1 is located. The reason why the house became number one is that Bangrak District (former Si Phraya) regarded the house as the property of the Privy Purse and so honoured it with the number one. The original building was the former French Distillery Company office. The building, with the European neoclassical architecture, has two storeys and is built with load-bearing walls. The house has a hipped roof design with a central pediment at the front. The wall was painted in yellow, and the windows in olive with white frames. The doors and windows have beautiful roman curves. The building showcases strength and solemnity decorated with groove pattern walls in the same manner as European masonry. The lower floor is laid with imported tiles and the upper floor is paved with teak. The supporting post area is decorated with stencil paintings of beautiful western flowers.
Easily accessible by boat, House No.1 is located on the banks of the Chao Phraya River boasting a magnificent view of the river. Captain Bush Lane was built later. It was named after Captain John Bush, who served as Harbour Master of the Central Harbour Department. In charge of European trade, Captain Bush was a competent Harbour Master serving two kings: King Rama IV and King Rama V. He also followed King Rama V during His royal visit to foreign countries and eventually earned the title of Phraya Wisuth Sakoradith.
The Crown Property Bureau considers House No.1 to be a structure of historical value representing genuine neoclassical architecture. The building, moreover, reflects the popularity of architecture during the reign of King Rama V after His royal visit to Europe.
During the period when neoclassical architecture was highly popular, the Crown Property Bureau has, therefore, proceeded with the restoration of the building since 2012, completing it in 2017. During the restoration, evidence was discovered indicating that the area was once a foreign community, such as pottery from China and Europe.
The second plot is situated next to House No. 1 on its north side. The tenant was Mr. Louis T. Leonowens, son of Ms. Anna Leonowens or Madam Anna, an English teacher to the sons and daughters of King Rama IV. This plot of land was rented for the business purpose of trading wood to European countries.