After lengthy delays to its opening, central government announced last week that Archidona's new prison could be in use by the end of 2017 or the beginning of 2018.
The jail was expected to open this summer, but problems with the availability of drinking water have delayed it going into full service.
Government spokesperson in Malaga, Miguel Briones said that work to ensure the prison has its own source of clean water will begin shortly and that the opening of the prison should not be delayed any further.
Once works on the water supply have begun, it is expected that the prison will be ready for a full opening in four months, however sources close to the project have suggested that it could be even less than that.
Briones was speaking on a visit to Alhaurín de la Torre where the province's only current prison is located. The new Archidona facility, in inland Malaga province by the A-92 M motorway, is designed to give additional capacity to the region's prison system.