[ABSTRAKPT. Mitra Safir Sejahtera dalam memasarkan rumah susun kemanggisan residencemenggunakan pre project selling system. Pemasaran rumah susun dilakukan saatlokasi pembangunan masih berupa tanah kosong dengan menandatangani perjanjianpengikatan jual beli. Dalam penelitian ini, permasalahan muncul akibat daripelaksanaan sistem tersebut dimana pengembang tidak menyelesaikan pembangunanrumah susun sebagaimana diperjanjikan dalam perjanjian pengikatan jual beli.Penelitian ini bertujuan untuk mengetahui perlindungan hukum bagi konsumen yangmembeli rumah susun dari pengembang yang menggunakan sistem ini. Oleh karenaitu, bentuk penelitian yang digunakan adalah yuridis normatif dengan tipe penelitianpreskriptif, dan jenis data yang digunakan adalah data sekunder yang dianalisis secarakualitatif sehingga menghasilkan laporan yang bersifat preskriptif analitis. Hasilpenelitian menunjukkan bahwa pengembang tidak memenuhi persyaratanadministratif yang diwajibkan dalam pemasaran rumah susun, dan perjanjianpengikatan jual beli yang bertujuan untuk melindungi konsumen ternyata tidak dapatmemberikan perlindungan hukum yang cukup bagi konsumen.

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ABSTRACTPT. Mitra Sejahtera Safir has been marketed kemanggisan residence with pre projectselling system. Marketing flats performed when the construction site is still a vacantwith signing the Preliminary Sale of Property Agreement. In this research, problemsarise as result of the system in which developers do not finish construction. Thisstudy aims to determine the legal protection for consumers who buy flats fromdevelopers who use this system. Therefore, the shape of the research is normativejuridical prescriptive research type, and the type of data used are secondary data wereanalyzed qualitatively to produce analytical reports prescriptive. The results showedthat the developer does not fulfill the administrative requirements in marketing flats,and Preliminary Sale of Property Agreement that aims to protect the consumer wasnot able to provide adequate legal protection for consumers.;PT. Mitra Sejahtera Safir has been marketed kemanggisan residence with pre projectselling system. Marketing flats performed when the construction site is still a vacantwith signing the Preliminary Sale of Property Agreement. In this research, problemsarise as result of the system in which developers do not finish construction. Thisstudy aims to determine the legal protection for consumers who buy flats fromdevelopers who use this system. Therefore, the shape of the research is normativejuridical prescriptive research type, and the type of data used are secondary data wereanalyzed qualitatively to produce analytical reports prescriptive. The results showedthat the developer does not fulfill the administrative requirements in marketing flats,and Preliminary Sale of Property Agreement that aims to protect the consumer wasnot able to provide adequate legal protection for consumers.;PT. Mitra Sejahtera Safir has been marketed kemanggisan residence with pre projectselling system. Marketing flats performed when the construction site is still a vacantwith signing the Preliminary Sale of Property Agreement. In this research, problemsarise as result of the system in which developers do not finish construction. Thisstudy aims to determine the legal protection for consumers who buy flats fromdevelopers who use this system. Therefore, the shape of the research is normativejuridical prescriptive research type, and the type of data used are secondary data wereanalyzed qualitatively to produce analytical reports prescriptive. The results showedthat the developer does not fulfill the administrative requirements in marketing flats,and Preliminary Sale of Property Agreement that aims to protect the consumer wasnot able to provide adequate legal protection for consumers., PT. Mitra Sejahtera Safir has been marketed kemanggisan residence with pre projectselling system. Marketing flats performed when the construction site is still a vacantwith signing the Preliminary Sale of Property Agreement. In this research, problemsarise as result of the system in which developers do not finish construction. Thisstudy aims to determine the legal protection for consumers who buy flats fromdevelopers who use this system. Therefore, the shape of the research is normativejuridical prescriptive research type, and the type of data used are secondary data wereanalyzed qualitatively to produce analytical reports prescriptive. The results showedthat the developer does not fulfill the administrative requirements in marketing flats,and Preliminary Sale of Property Agreement that aims to protect the consumer wasnot able to provide adequate legal protection for consumers.]