Can I request Town Council to divert neighbour water pipes passing through my HDB level 1 unit

No, you cannot request the town council to divert a neighbour's water pipes passing through your HDB level 1 unit, as town councils do not have authority over plumbing or water pipe modifications in HDB flats.

These pipes are part of the building's shared sanitary and water supply systems, regulated strictly by HDB and PUB (Public Utilities Board), not town councils, which handle common property maintenance like lifts and corridors but not internal piping works.

Tampering with, relocating, or diverting existing water pipes requires prior approval from HDB and potentially PUB, and must be done by licensed plumbers under the HDB Registered Renovation Contractors’ Scheme (RRCS). Pipes must remain accessible for repairs, and full permanent concealment or relocation without access panels is prohibited to ensure maintenance and prevent leaks.

For shared pipes affecting multiple units, any changes need consent from affected parties and authorities, as they impact the overall drainage system. Engage an HDB-approved contractor to assess your flat and submit a formal application to HDB via the e-Service portal for guidance on feasible options, such as boxing up with access panels if concealment is your goal rather than diversion. Non-compliance can result in fines or mandatory rectification. Check EdgeProp Singapore for HDB renovation guidelines and licensed contractor listings.