The Cheong Fatt Tze Mansion is a government gazetted heritage building located on Leith Street in George Town, Penang, Malaysia. The mansion's external decorations and indigo-blue outer walls make it a very distinctive building, and it is sometimes referred to as The Blue Mansion. Built by the merchant Cheong Fatt Tze at the end of the 19th century, the mansion has 38 rooms, 5 granite-paved courtyards, 7 staircases and 220 vernacular timber louvre windows. It served as Cheong's private residence as well as the seat of his business activities in Penang. The mansion is eclectic, but mainly reflects Chinese architectural styles of the Imperial Period. Features of the house include Gothic louvred windows, Chinese cut and paste porcelain work, Stoke-on-Trent floor tiles made of encaustic clay in geometric pieces all shaped to fit to a perfect square, Glasgow cast iron works by MacFarlane's & Co. and Art Nouveau stained glass windows. The mansion was originally built with careful attention to the principles of Feng Shui. The domestic annexe is built in front of it to prevent any road being built to create a T-junction in front of it; it has water running through a meandering network of pipes that begin from the eaves of the roof, channelled through the upper ceiling, down the walls collecting in the central courtyard before being channelled away from the property via a similar network of pipes, in this case, underneath the entire flooring system and is built with a step in the middle to create a slope (to ride on the dragon's back). The distinctive blue colour of the mansion is the result of mixing lime with natural blue dye made from the indigo plant. The blue was very popular in the Colonial period and the dye was imported from India to Penang by the British. The lime-wash was very effective in a tropical weather as it absorbed moisture and cooled the house whilst dispelling moisture without damage to the structural integrity of the walls. Though white was the most easily available colour, the indigo-blue was chosen because it was highly prized by all communities, adding stature to the mansion. The mansion was purchased from Cheong Fatt Tze's descendants in 1989 by a group of local Penang individuals to save the edifice from encroaching development and possible demolition. The property operates as an 18 Room Hotel-cum-museum as part of the adaptive reuse of an