Rethinking Property Rights Over Water-Based Constructions: Comparative Insight from Indonesia and Selected Jurisdiction
Abstract
Property rights over water-based constructions present a complex legal issue within Indonesia’s agrarian law system. Existing regulations, including the Agrarian Law of 1960 and Government Regulation No. 18 of 2021 on Management Rights, Land Rights, and Land Registration, do not explicitly regulate the legal status of structures built above water surfaces. This regulatory gap creates uncertainty regarding ownership. The spatial control and the classification of such constructions within the existing land law framework are needed to examine. This study examines the legal framework governing water-based constructions in Indonesia through a qualitative doctrinal approach combined with comparative legal analysis. It evaluates relevant statutory provisions, legal concepts of land and spatial rights, and selected international practices to identify regulatory gaps and potential solutions. The comparative analysis draws on experiences from jurisdictions that have addressed similar issues, particularly in relation to the classification of floating structures and the separation between land rights and building rights. The findings indicate that the current Indonesian framework lacks conceptual clarity in addressing constructions situated above water, resulting in overlapping institutional authority and inconsistent regulatory practices. A key insight from the comparative analysis is the potential relevance of the horizontal separation principle (applied in jurisdictions such as Japan), which distinguishes between land ownership and building rights. This approach may provide an alternative model for regulating water-based constructions in Indonesia. This study concludes that clearer regulatory integration and inter-agency coordination are essential to ensure legal certainty, effective spatial governance, and sustainable development in water-based environments.
References
Agus Sekarmadji, Sri Hajati, Oemar Moechthar, Noraida Harun, Regine Wiranata. “Data Synchronization Model to Improve the Supervision of Land Ownership for Citizens Towards the Indonesian Agrarian Reform Agenda.” Psychology and Education Journal 58, no. 2 (February 2021): 1673–80. https://doi.org/10.17762/pae.v58i2.2323.
Al-Zahra, Fatimah. “Melacak Landasan Hukum Pengelolaan Aset Tanah Negara Melalui Konsep Bank Tanah.” AL-IHKAM: Jurnal Hukum & Pranata Sosial 12, no. 2 (January 2018): 405–28. https://doi.org/10.19105/al-lhkam.v12i2.1306.
Amsterdam, Schoonschip. “The Most Sustainable Floating Neigbourhood in Europe.”
Schoonschip Amsterdam, 2024.
Arifin, Mahfud, Novarina Darmawan Putri, Apong Sandrawati, and Rachmat Harryanto. “Pengaruh Posisi Lereng Terhadap Sifat Fisika Dan Kimia Tanah Pada Inceptisols di Jatinangor.” SoilREns 16, no. 2 (February 2019): 37–44.
https://doi.org/10.24198/soilrens.v16i2.20858.
Aristyowati, Aristyowati, Evawani Ellisa, and Ahmad Gamal. “An Investigation of SocioSpatial Equality in Blue Green Space at the Setu Babakan Area, Jakarta.” City and Environment Interactions 22 (April 2024): 100137.
https://doi.org/10.1016/j.cacint.2023.100137.
Asnawi Mubarok, Absori, Harun, and Sheela Jayabalan. “The Relationship Of State Law And Customary Law:” Jurnal Jurisprudence, December 2023, 188–204. https://doi.org/10.23917/jurisprudence.v13i2.2914.
Boschiero, Martina, Valeria De Laurentiis, Carla Caldeira, and Serenella Sala. “Comparison of Organic and Conventional Cropping Systems: A Systematic Review of Life Cycle Assessment Studies.” Environmental Impact Assessment Review 102 (September 2023): 107187. https://doi.org/10.1016/j.eiar.2023.107187.
Busch, Signe Veierud. “Law of the Sea Responses to Sea-Level Rise and Threatened Maritime Entitlements.” In The Law of the Sea and Climate Change, 9:309–35. Cambridge University Press, 2020. https://doi.org/10.1017/9781108907118.014.
Cutieru, Andreea. “Circular Economy in Urban Design: Sustainability and Community Involvement.” Arch Daily, 2022. https://www.archdaily.com/977900/circular-economyin-urban-design-sustainability-and-community-involvement?ad_medium=gallery.
Dannemann, Gerhard. “Comparative Law: Study of Similarities or Differences?” In The Oxford Handbook of Comparative Law, edited by Mathias Reimann and Reinhard Zimmermann, 382–420. Oxford University Press, 2006. https://doi.org/10.1093/oxfordhb/9780199296064.013.0012.
Das, Braja M. Mekanika Tanah Jilid 1. Jakarta: Erlangga, 1995.
Delbert, Caroline. “The World’s First True Floating Island City Could Reimagine Survival.” Popular Mechanics, 2021. https://www.popularmechanics.com/science/environment/a36231724/maldivesfloating-city/.
Deriu, Davide. “Skywalking in the City: Glass Platforms and the Architecture of Vertigo.” Emotion, Space and Society 28 (August 2018): 94–103. https://doi.org/10.1016/j.emospa.2017.05.005.
Devita, Seventina Monda. “Perkembangan Hak Pengelolaan Atas Tanah Sebelum Dan Sesudah Peraturan Pemerintah Nomor 18 Tahun 2021 Tentang Hak Pengelolaan, Hak Atas Tanah, Satuan Rumah Susun, Dan Pendaftaran Tanah.” Jurnal Hukum Lex Generalis 2, no. 9 (September 2021): 870–88. https://doi.org/10.56370/jhlg.v2i9.130.
Dixon, Martin. Modern Land Law. London and New York: Routledge Taylor & Francis Group, 2016.
Djuniarti, Evi. “Hak Menguasai Tanah Oleh Negara Dalam Penggunaan Tanah Untuk Investasi.” Jurnal Penelitian Hukum De Jure 23, no. 4 (December 2023): 483–94. https://doi.org/10.30641/dejure.2023.V23.483-494.
Firoozi, Ali Akbar, Ali Asghar Firoozi, D.O. Oyejobi, Siva Avudaiappan, and Erick Saavedra Flores. “Emerging Trends in Sustainable Building Materials: Technological Innovations, Enhanced Performance, and Future Directions.” Results in Engineering 24 (December 2024): 103521. https://doi.org/10.1016/j.rineng.2024.103521.
Gateway, Selangor Maritime. “The Interceptor in Klang River.” Selangor Maritime Gateway, 2024.
Gontarek-Castro, Emilia, Mirco Haseler, Mona-Maria Narra, Anna Gołąbiewska, and Patrycja Jutrzenka Trzebiatowska. “Utilization Routes of Plastic Waste from the Marine Environment: A Review.” Waste Management 210 (January 2026): 115221. https://doi.org/10.1016/j.wasman.2025.115221.
González, Miquel. “These Houses Have the Ultimate Water View.” The New York Times, 2018. https://www.nytimes.com/2018/05/24/arts/design/architecture-floating-houses.html.
Hafizh Arrofiq, Abdil, Lusmeilia Afriani, and Iswan Iswan. “Pengaruh Variasi Waktu Pemeraman Terhadap Nilai Uji Kuat Tekan Bebas Pada Tanah Lempung Dan Lanau Yang Distabilisasi Menggunakan Kapur Pada Kondisi Optimum.” Jurnal Rekayasa Sipil Dan Desain 4, no. 3 (June 2016): 447–58. https://doi.org/10.23960/jrsdd.v4i3.427.
Hardjowigeno, Sarwono. Ilmu Tanah. Jakarta: Akademika Pressindo, 2010.
Harsono, Boedi. Hukum Agraria Indonesia, Sejarah Pembentukan Undang-Undang Pokok Agraria, Isi Dan Pelaksanaannya. Jakarta: Penerbit Universitas Trisakti, 2013.
Hoecke, Mark van. “Methodology of Comparative Legal Research.” Law and Method, 2015, 1–
35. https://doi.org/10.5553/REM/.000010.
Hong, Tianzhen, Jeetika Malik, Amanda Krelling, William O’Brien, Kaiyu Sun, Roberto Lamberts, and Max Wei. “Ten Questions Concerning Thermal Resilience of Buildings and Occupants for Climate Adaptation.” Building and Environment 244 (October 2023): 110806. https://doi.org/10.1016/j.buildenv.2023.110806.
Huebner, Stefan. “Coastal Urban Climate Adaptation and the Advance onto Aquatic Surfaces Using Floating Solutions: Historical Challenges and Potential Future Benefits of Floating Homes and Similar Structures.” Ocean & Coastal Management 261 (February 2025): 107433. https://doi.org/10.1016/j.ocecoaman.2024.107433.
Hutchinson, Terry, and Nigel Duncan. “Defining and Describing What We Do: Doctrinal Legal Research.” Deakin Law Review 17, no. 1 (October 2012): 83. https://doi.org/10.21153/dlr2012vol17no1art70.
Jacob Shamsian, and Chelsea Pineda. “The Netherlands Is Building Houses That Float on Water.” Business Insider, 2024.
Jónsdóttir, Salvör, and Guðrún Gísladóttir. “Land Use Planning, Sustainable Food Production and Rural Development: A Literature Analysis.” Geography and Sustainability 4, no. 4 (December 2023): 391–403. https://doi.org/10.1016/j.geosus.2023.09.004.
Kementerian Kelautan dan Perikanan. “Sistem Elektronik Perizinan KKPRL,” 2026. https://esea.kkp.go.id/. Kementerian Pekerjaan Umum Republik Indonesia. “Sistem Informasi Manajemen Bangunan Gedung,” 2026. https://simbg.pu.go.id/.
Lin, Fen-Yu, Otto Spijkers, and Pernille van der Plank. “Legal Framework for Sustainable Floating City Development: A Case Study of the Netherlands,” 433–60, 2022. https://doi.org/10.1007/978-981-16-2256-4_27.
Lubell, Sam. “These Houses Have the Ultimate Water View.” The New York Times, 2018.
Majeed, Nasir, Amjad Hilal, and Arshad Nawaz Khan. “Doctrinal Research in Law: Meaning, Scope and Methodology.” Bulletin of Business and Economics (BBE) 12, no. 4 (December 2023): 559–63. https://doi.org/10.61506/01.00167.
Mens, Jeroen, Ellen van Bueren, Ruben Vrijhoef, and Erwin Heurkens. “A Typology of Social Entrepreneurs in Bottom-up Urban Development.” Cities 110 (March 2021): 103066. https://doi.org/10.1016/j.cities.2020.103066.
Michelson, Molly. “The Ocean Cleanup.” Calacademy, 2016.
Moechthar, Oemar, and Ardian Firmansyah Arifin. “Penerapan Konsep Trust of Land Dalam Sistem Hukum Agraria: Suatu Perbandingan Hukum Antara Indonesia Dan Britania Raya.” Media Iuris 5, no. 3 (October 2022): 351–80. https://doi.org/10.20473/mi.v5i3.34969.
Moosa, Ahdha, Khoa Do, and Emil Jonescu. “Design Response to Rising Sea Levels in the Maldives: A Study into Aquatic Architecture.” Frontiers of Architectural Research 9, no. 3 (September 2020): 623–40. https://doi.org/10.1016/j.foar.2020.04.002.
Murni, Christiana Sri, Bernadus Basa Kelen, and Sumirahayu Sulaiman. “The Legal Certainty of Land Ownership Right in Registration’s Context.” International Journal of Law Reconstruction 6, no. 1 (April 2022): 13. https://doi.org/10.26532/ijlr.v6i1.16422.
Negara, Tunggul Ansari Setia. “Normative Legal Research in Indonesia: Its Originis and Approaches.” Audito Comparative Law Journal (ACLJ) 4, no. 1 (February 2, 2023): 1–9. https://doi.org/10.22219/aclj.v4i1.24855.
Nissa, Sisca Ainun. “Menyelami Konsep Struktur Terapung.” Kursussipil.id, 2025.
Rathnayaka, Bawantha, Dilan Robert, Chandana Siriwardana, V.V. Adikariwattage, H.R. Pasindu, Sujeeva Setunge, and Dilanthi Amaratunga. “Identifying and Prioritizing Climate Change Adaptation Measures in the Context of Electricity, Transportation and Water Infrastructure: A Case Study.” International Journal of Disaster Risk Reduction 99 (December 2023): 104093. https://doi.org/10.1016/j.ijdrr.2023.104093.
Resosudarmo, Ida Aju Pradnja, Luca Tacconi, Sean Sloan, Faridh Almuhayat Uhib Hamdani, Subarudi, Iis Alviya, and Muhammad Zahrul Muttaqin. “Indonesia’s Land Reform: Implications for Local Livelihoods and Climate Change.” Forest Policy and Economics 108 (November 2019): 101903. https://doi.org/10.1016/j.forpol.2019.04.007.
Ridwan, Ridwan. “Management of Abandoned Land in the Perspective of Islamic Law and National Law of Land.” AL-IHKAM: Jurnal Hukum & Pranata Sosial 11, no. 1 (July 2016): 19–37. https://doi.org/10.19105/al-lhkam.v11i1.855.
Rinnovabili. “Schoonschip: The Floating Sustainable District of Amsterdam Self-Sufficient in Everything,” 2022. https://www.rinnovabili.net/environment/sustainable-districtschoonschip-amsterdam-self-sufficient-in-everything/.
Rudy Haryanto, and Lailatul Maufiroh. “An Waqf Land in Madura; Its Management and Typical Dispute Resolution.” AL-IHKAM: Jurnal Hukum & Pranata Sosial 18, no. 2 (December 2023): 496–518. https://doi.org/10.19105/al-lhkam.v18i2.7570.
Santoso, Urip. “Eksistensi Hak Pengelolaan Dalam Hukum Tanah Nasional.” Mimbar Hukum 24, no. 2 (October 2012): 275. https://doi.org/10.22146/jmh.16130.
Savage, David G. “Supreme Court Upholds State Laws on Floating Homes.” Los Angeles Times,
2013.
Sekarmadji, Agus, Oemar Moechthar, John Roberto Sampe, and Idham Halik Nussy. “Legal Certainty of Registration of House Ownership Rights on Seawater.” Revista de Gestão Social e Ambiental 18, no. 5 (July 2024): e07793. https://doi.org/10.24857/rgsa.v18n5-165.
Syakur, Abd, Hary Yuswadi, Bagus Sigit Sunarko, and Edy Wahyudi. “Tata Kelola Wakaf Dalam Meningkatkan Kesejahteraan Masyarakat Di Kabupaten Jember.” AL-IHKAM: Jurnal Hukum & Pranata Sosial 13, no. 1 (July 2018): 73–96. https://doi.org/10.19105/al-lhkam.v13i1.1187.
The Ocean Cleanup. “Cleanup 90% of Floating Ocean Plastic by 2040.” Department of Economic and Social Affairs Sustainable Development, 2022. https://sdgs.un.org/partnerships/cleanup-90-floating-ocean-plastic-2040.
———. “Interceptor 019: Bangkok, Thailand,” 2024. https://theoceancleanup.com/mediagallery/interceptor-019-bangkok-thailand/.
———. “The Ocean Cleanup, Together With Partners, Celebrates the Official Deployment of
Its Cleanup Technology in Thailand for the First Time,” 2024. https://theoceancleanup.com/press/press-releases/the-ocean-cleanup-together-withpartners-celebrates-the-official-deployment-of-its-cleanup-technology-in-thailand-forthe-first-time/.
Volchko, Yevheniya, Jenny Norrman, Lars O. Ericsson, Kristina L. Nilsson, Anders Markstedt, Maria Öberg, Fredrik Mossmark, Nikolai Bobylev, and Per Tengborg. “Subsurface Planning: Towards a Common Understanding of the Subsurface as a Multifunctional Resource.” Land Use Policy 90 (January 2020): 104316.
https://doi.org/10.1016/j.landusepol.2019.104316.
Wesley, Laurence D. Fundamentals of Soil Mechanics for Sedimentary and Residual Soils. Canada: John Wiley & Sons, 2010.
Widiyono, Try, and Md Zubair Kasem Khan. “Legal Certainty in Land Rights Acquisition in Indonesia’s National Land Law.” LAW REFORM 19, no. 1 (August 2023): 128–47. https://doi.org/10.14710/lr.v19i1.48393.
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