Expectation of Floating Building in Java Indonesia,
Case Study in Semarang City

Slamet Imam Wahyudi, Professor in Dept. of Civil Eng. (Sultan Agung Islamic University)
Henny Pratiwi Adi, Assc. Professor in Dept. of Civil Eng. (Sultan Agung Islamic University)
Jonathan Lekerkerk, Assc. Professor in Dept. of Water Management (Rotterdam University of Applied Sciences)
Jorge Jansen, Thesis Student in Dept. of Water Management (Rotterdam University of Applied Sciences)
Floris C. Boogaard, Hanze University of Applied Sciences, Deltares

Many delta cities worldwide are dealing with the same kind of problems: rising of the sea level, land subsidence, scarcity of land and illegal housing. In order to tackle these problems, it is important to come up with integrated solutions. Multiple land use is one of these solutions that will help to reduce flooding and scarcity of land. An example of multiple land use is a floating community. This research will focus on expectation of floating houses. This research will use Semarang as testing location for the research into the social acceptance. The main question of this research is what the expectation of floating building in Semarang and what recommendations can be given to improve the social acceptance? To give an answer to this question, several methods have been used. This research describes the stages of interviewing and Focus agroup Discussion (FGD). The data used to SWOT Analysis. And then, the conclusions and recommendations that can be drawn considering the expectation of floating building in Semarang.

In order to improve the expectation, these factors should be strengthening. 1st is about Relative advantage. Improving information about floating houses and about the current situation can help to improve see the advantage of a floating house. 2nd is about Compatibility. The compatibility of floating houses in Semarang is low. When living on floating platforms will be become more regular the compatibility will increase with the developing. 3rd is about Complexity. The most complex item of the concept is the self-sufficient system. 4th is about Trialability. The opportunity to try an innovation will help increase the expectation which has a positive effect on the diffusion of the technology. 5th is about Observability. This will also be improved with a pilot project.
By providing a legal house that can float with the water level, inhabitants are getting security of tenure and are prevented from flooding. Another gain is that floating houses in Semarang can function as a pilot project for other vulnerable areas in Southeast Asia.

Keywords – Floating Building, Expectation, Flooding, Polder Area


Prof. Dr. Ir. S. Imam Wahyudi, DEA has over 25 year experiences in consultancy and research on climate adaptation in water management of delta area. He was graduated Doctor from University de Nantes, France. He heads the Delta Center on Climate Change and Professor in Civil Engineering, Sultan Agung Islamic University, Semarang, Indonesia. He has experience improving water management in cities in Indonesia (Semarang, Pekalongan, Tegal, Jakarta). He has several abroad cooperation with Dutch Water Authority, HHSk Rotterdam Waterboard, Rotterdam University A. S. Hanze University A. S., University de Nantes (France). Prof. Imam has local network and maintains an excellent relationship with governmental and community institutions. Prof. Imam ’s technical expertise on water management and polder design, emergency response, floating building, coastal protection and climate adaptation. He is very active to contribute scientific papers.

follow us on:

  • Twitter
  • Facebook
  • Instagram
  • LinkedIn