Inventory of old buildings and land subsidence in Semarang old colonial City

Abstract

There have been many researches on the conservation efforts of historical cities. The building inventory stage is the first step in conservation efforts to protect buildings from the past in order to have benefits in the present. This paper provides some data on buildings that undergo land subsidence in historical areas. Semarang Old City is a historical area built by the Colonial government in the 17th century. After nearly 320 years, some of these buildings have been damaged. This research, which focuses on buildings damaged by land subsidence will collect data from 245 existing buildings in 40 ha area. The approach method uses historical buildings, photos of old buildings, and field surveys. Several old buildings have been detected to be decreased in height due to land subsidence. This can be seen by comparing photos of old buildings from the past and the present. The research analysis uses sketches and photoshop to provide information on how much the height is decreased visually. This inventory results will be able to give advice to the government regarding the appropriate conservation actions to take in an area experiencing land subsidence. This research will also help preserve buildings and environment according to current and future needs in order to preserve their cultural meaning.