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Qualified Persons Portal


The Building Plan Unit (BPU) coordinate all responses to consultations and submissions from QPs /Industry professionals on sewerage, drainage and water matters.

All queries on submissions may be made through:

  • BPU hotline: 6731 3512 – Operating hours: Mondays to Fridays, 9am to 5pm (excluding public holidays)
  • Email:

The QP portal serves as a one-stop resource centre for QPs to locate information on water related submissions to PUB, bringing together all the relevant information for your easy reference.

PUB and NEA will operate as separate technical agencies with effect from 1 Jan 2017, with PUB focusing on water-related matters. This is to improve the service of building and construction industry and provide a direct line of contact for our industry partners. Refer to circular for details [PDF].

Service Standards

The table below shows a typical response time from PUB. 

Type of SubmissionTypical Response Time *
Development Control 14 Working Days
Detailed Plan 14 Working Days
Simplified Submission1 Working Day
Application for Work Affecting Public Sewer14 Working Days
Completion of Work (Sewerage / Drainage)14 Working Days

* QPs are reminded to provide all required documents and information to ensure submissions are processed on time. The correct Corenet Forms are to be duly completed; check all sections that need to be processed and make all necessary declarations. Incomplete forms will not be processed and will be rejected.

Submission StageForms to UseSections to Declare
Development Control (DC) PUB-DCCLR

This part covers both sanitary, sewerage and drainage sections. If there are no works affecting Sanitary and/or Sewerage and/or Drainage, QP should state the info clearly in the cover letter. 

Simplified submission may be made using relevant sections ion this form if the project meets requirements.

Detailed Plan (DP) PUB-DPCLRSelect section and declarations applicable to project, e.g. Categories -- Works Affecting Sanitary, Used Water Pumping System, RC Trench, Sewerage, Minor Drainage, Other Drainage.  

Specific clearances applicable to each of the above areas will be given base on QPs selection and declarations.
Sewerage Clearance for TOP/CSC PUB-BPU-COMPOFWORK

Hydrostatic/Air test

Select section and declarations applicable to project, e.g. Categories -- TOP Clearance for Sanitary, Used Water Pumping System, RC Trench, Sewerage CSC Clearance. 

Hydrostatic/air test result to be submitted together with PUB-BPU-COMPFWORK form if the project has sanitary or sewerage works.

Drainage Clearance for TOP PUB-DRATOPSelect section applicable to project for drainage TOP clearance, eg. Categories -- Monitor Drainge, Other drainage.
Drainage Clearance for CSC PUB-DD-CSIDRASelect section applicable to project for drainage CSC clearance, eg. Categories -- Minor Drainage and Other Drainage. 

Notifications via email will be sent to the applicant (QP or PE) and Owner when DC, DP, Completion of Work, Drainage Clearance for TOP and CSC obtain PUB's No Objection, Clearance and Written Direction.