Yes, but the STP rules for apartments in Bangalore vary depending on the apartment's size and whether an underground drainage (UGD) line is present.
The STP mandate has been updated by the Karnataka government. STPs in 2016 were mandatory for all constructions with more than 50 units; they were even made essential for projects with more than 20 units, which sparked strong protests throughout Bengaluru.
The most recent regulations state that if the region has a UGD line, apartment buildings with more than 120 units and producing more than 80 KLD of sewage must install an in-situ STP. This brings relief to many core-city apartments.
Regardless of sewage output, a STP is still required for any complexes larger than 20 units if your project is located in an area without UGD lines.
Smaller STPs are expensive and ineffective.
After lobbying by the Bangalore Apartments Federation (BAF), the government revised the norms to make compliance practical.
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Is STP Mandatory for Apartments in Bangalore?
Rohit67
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2025-11-25T14:33:41+00:00 2025-11-25T14:33:43+00:00Comment
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