The Taipei City Historical Building Wen-fang（文房）was built in 1937. During the Japanese era, it was originally owned by Taiwan Takushoku Co., Ltd. （臺拓）and was provided for the residence of the highest directors including the vice president and three ministers. The company was a special company established for the purpose of carrying forward colonial enterprises in Taiwan during the Japanese colonial period. It mainly engaged in the colonization of Taiwan, South China, and Southeast Asia. It was a product of the country's political intentions under the wartime economy. Due to the limited information and lack of investigation and research at the time of registration, the historical building has been registered as " Saiwai-machi Japanese style dormitory—No. 1, Lane 27, Lin-yi Street" since the beginning. Its true identity has never been clearly clarified.

二十一世紀初期，北市都市更新風潮盛行，許多國有（公有）眷舍拍賣或為配合都更條例之規定的開發案例不斷，各地舊有日本宿舍的改建陸續出現，也促成了今日廣為人知的臨沂街文房的保存。2007年5月30日，文房正式登錄為歷史建築（府文化二字第09630228000號），成為本世紀頭十年日本宿舍保存與再利用的重要範例之一。

然而，當年受限於資料的侷限，由於建物確切身分資訊的缺乏，導致文資審議最終僅以「幸町日式宿舍—臨沂街27巷1號」名稱加以登錄，而其登錄理由也只能側重於建築形式的描述，無法準確地傳遞出一處文化資產的價值所在：（1）本棟建物為日據末期日式住宅，其格局特殊，東面應接室、露臺為洋式，西邊為和式，為和洋折衷式樣建築。（2）入口露臺、門廳仿萊特風格，為其他日式宿舍少見。

（全文請見《實構築季刊》19期）