Peraturan Menteri Pekerjaan Umum 11/2014 (Peraturan Menteri Pekerjaan Umum Nomor 11/PRT/M/2014 tentang Pengelolaan Air Hujan pada Bangunan Gedung dan Persilnya) is an Indonesian ministerial regulation on the management of rainwater on buildings and the plots on which they stand. It was signed by the Minister of Public Works on 24 September 2014 and promulgated on 26 September 2014 in Berita Negara 2014 No. 1394, taking effect on that date.^[1] It belongs to the rules on the conservation and use of water surveyed at water resources law of Indonesia, and its preamble presents it as the follow-up to the requirement in the building regulations that every building be equipped with rainwater drainage.^[2]

The regulation defines rainwater management as keeping the natural hydrological condition of a site by making the most of the use of rainwater, of its infiltration into the ground and of its temporary storage to lower flood discharge.^[3] Its central device is the Status Wajib Kelola Air Hujan (mandatory rainwater-management status), a requirement that the regency or city government, or in Jakarta the provincial government, sets for each building and communicates to the applicant for a building permit (IMB). Meeting that status in the technical plan is a prerequisite for the permit, and the working order of the rainwater facilities is a prerequisite for the certificate of fitness for use (SLF).^[4][5]

The status is set either on the basis of the 95th-percentile daily rainfall or on a site-specific hydrological analysis, and the facilities chosen follow an order of priority that puts use of rainwater first, infiltration second and temporary detention last.^[4:1][6] The regulation also assigns guidance and supervision duties to the three tiers of government, and gives the public a role that includes reporting buildings that do not meet their status.^[7][8] CRPG's regulatory tracker published two analyses of it in November 2025.^[9][10]

¶ Background

The preamble gives three reasons for the regulation: the need to use and manage rainwater on buildings and their plots in order to maintain the water cycle and natural hydrological conditions and to meet the water needs of buildings; the need to channel the rain that falls on buildings and plots so as to reduce the risk of floods caused by excess water during rain; and Pasal 42 of Peraturan Pemerintah Nomor 36 Tahun 2005, the implementing regulation of the 2002 law on buildings, under which every building must be equipped with rainwater drainage as one of the requirements of its sanitation system.^[2:1] The legal bases it lists include that regulation, Peraturan Pemerintah 38/2007 on the division of government affairs, Peraturan Pemerintah 42/2008 on water resources management, Peraturan Pemerintah 15/2010 on spatial planning, a 2009 regulation of the Minister of Environment on the use of rainwater (Pemanfaatan Air Hujan), and a 2012 Public Works regulation on the national action plan for climate change mitigation and adaptation.^[2:2]

Pasal 2 describes the regulation as a reference for the central, provincial and regency or city governments and for those who build, own or use buildings (Penyelenggara Bangunan Gedung), with the aim of optimal rainwater management on buildings and their plots. Pasal 3 sets its scope in five matters: the conduct of rainwater management, the setting of the mandatory status, the provision of facilities and infrastructure, guidance (pembinaan), and the role of the public.^[11]

¶ Rainwater management and its instruments

Pasal 1 defines the facilities through which rainwater is managed. A sarana penampung air hujan collects rainwater so that it can be used; a sarana retensi holds rainwater so that it can then be infiltrated into the ground; and a sarana detensi holds rainwater so that it can then be distributed according to its intended use. Detention (detensi air hujan) is the temporary collection of rainwater to reduce the volume of runoff that could cause pooling. The same article defines the 95th-percentile rainfall as the lowest daily rainfall that is equal to or greater than 95 per cent of the rainfall recorded, and the mandatory volume (Volume Wajib Kelola Air Hujan) as the total daily volume of rainwater that must be managed on a building and its plot.^[3:1]

Under Pasal 4 to 7 the conduct of rainwater management rests on a general pattern of principles and benefits, on implementing instruments, and on a sequence of stages set out separately for new and existing buildings.^[12] The first instrument is information on the characteristics of the area - soil, topography, the groundwater table and the type of facility suited to it - which is the product of a study for which the regency or city government, or in Jakarta the provincial government, is responsible, and which may be carried out as part of a building and environmental plan (RTBL). For new buildings the instruments are the city plan statement (KRK), the building permit (IMB) and the certificate of fitness for use (SLF). For existing buildings they are an inspection form, a notification letter setting out the mandatory status, the technical plan and the time allowed to provide the facilities, and a statement that the building manages its rainwater.^[12:1][13]

The annex states the governing principle: rain falling on the plot counts towards the mandatory status and should as far as possible not run off the plot, so that the building does not harm its surroundings when it rains. It then ranks three patterns of management. Using harvested rainwater comes first, and is meant for areas where water is very scarce; where the water is to be used for drinking it must meet drinking-water quality standards or be treated first. Infiltration comes second, and applies where the competent authority does not prohibit it. Holding rainwater back temporarily to reduce runoff is the last option, for areas where infiltration is not possible.^[6:1] Pasal 14 ayat (3) restates the same order of priority for the choice of facilities.^[14]

¶ Mandatory rainwater-management status

Pasal 9 gives the regency or city government, and in Jakarta the provincial government, the power to set the mandatory status of each building and plot. The status is delivered to the applicant for a building permit together with the city plan statement, and meeting it in the building's technical plan is part of the prerequisites for issuing the permit. The status takes one of two forms: a status based on the 95th-percentile rainfall, or a status based on a site-specific hydrological analysis.^[4:2] Pasal 10 and 11 leave the criteria and the procedure to the annex.^[15]

Under the annex the 95th-percentile status is set for all buildings except those whose location and plot size may have a significant effect on the hydrological cycle, such as buildings in water catchment areas, hills, mountains and forests. The second status may be set in place of the first where the 95th-percentile status does not sufficiently protect the hydrology of the plot, or where the owner wishes to manage rainwater to the maximum. A site-specific hydrological analysis is required for housing areas, settlements and buildings on land of 10,000 square metres or more, as part of the documents of their environmental impact assessment (Amdal), and must be prepared by experts in hydrology, civil engineering, geotechnics or related fields. The volume set under the second status must be at least equal to the volume the first would have set.^[16] For each status the annex requires the decision to state the volume to be managed, the types of facility that can technically be installed, incentives and disincentives for the owner or user, and the sanctions that may be imposed for breach.^[16:1]

In setting a 95th-percentile status the local government weighs technical factors - the depth of the groundwater table, soil permeability, slope, and the required distances of facilities from foundations, septic tanks and wells - and the owner's financial capacity to provide the facilities. For buildings of simple complexity or on plots under 10,000 square metres the dimensions and number of facilities are set by the local government from the area study; for more complex buildings or larger plots they are designed by the planning consultant.^[16:2]

¶ Facilities and infrastructure

Pasal 13 requires the provision of facilities to take account of the soil, topography and groundwater table of the plot, and their dimensions to be calculated from rainfall intensity and plot area. Under Pasal 13 huruf c the working order (kelaikan fungsi) of the rainwater facilities is part of the prerequisites for the certificate of fitness for use and for its renewal.^[5:1] Pasal 14 divides the facilities into storage, retention and detention facilities, and lists the supporting infrastructure as rainwater channels, gutters, control boxes, filter boxes, pipes and taps, which must be designed to support the operation of the facilities.^[14:1] The annex describes retention facilities in the form of infiltration wells (sumur resapan), retention ponds, biopore infiltration holes and deep infiltration wells, and detention facilities in the form of detention tanks or ponds, vertical gardens and roof gardens.^[13:1]

Where a building and its plot cannot, for technical or non-technical reasons, manage their rainwater independently, Pasal 16 requires the regency or city government, and the Jakarta provincial government, to manage rainwater at the scale of the area in accordance with the laws and regulations, and allows area-scale management to serve as the basis for granting the building permit.^[17]

¶ Guidance, public role and closing provisions

Pasal 17 to 20 treat guidance on rainwater management as part of the general guidance of building administration, carried out by the central, provincial and regency or city governments through regulation, empowerment and supervision. The central government prepares norms, standards, procedures and criteria, provides technology, socialisation and training, and monitors the provinces; the provinces monitor the regencies and cities; and the regencies and cities, and Jakarta, prepare and disseminate regulations and monitor those who build and use buildings.^[7:1]

Pasal 21 describes the role of the public: providing information on soil, topography and the depth of the groundwater table for the local area study, taking part in rainwater management at each stage of the building process, reporting in writing to the local government where a building appears not to meet its mandatory status, and spreading information on rainwater management.^[8:1] Under Pasal 22 existing rules on rainwater management on buildings remain in force insofar as they do not conflict with the regulation, and Pasal 23 brings it into force on promulgation.^[1:1]

¶ Relationship to other instruments

The regulation's permit instruments are those of the building law as it stood in 2014. The Job Creation regulation in lieu of law, enacted as Undang-Undang 6/2023, amended the 2002 law on buildings and defined the Persetujuan Bangunan Gedung (building approval) as the permit given to a building owner to build, alter, extend, reduce or maintain a building in accordance with the building's technical standards.^[18] Infiltration wells and other retention facilities return rainwater to the ground, the subject of groundwater regulation in Indonesia.^[3:2]

CRPG's regulatory tracker published two analyses of the regulation on 26 November 2025.^[9:1][10:1]

¶ See also

• Undang-Undang 17/2019
• Wastewater and sanitation regulation in Indonesia

¶ External links

• CRPG: Mandatory Rainwater Management for Buildings and Plots: PERMENPUPR 11/2014 (crpg.id, 26 November 2025) (free sign-in required on crpg.id)
• CRPG: PERMENPUPR 11/2014: Rainwater Management Requirements for Buildings (crpg.id, 26 November 2025) (free sign-in required on crpg.id)

¶ References