Singapore · PUB submissions
We prepare sanitary plumbing, drainage and water service drawings to PUB's Codes of Practice, ready for your Qualified Person or Licensed Plumber to submit. Clear, carefully checked drawings help keep PUB comments and resubmissions to a minimum.
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Drawings for every stage of a PUB sanitary, sewerage and water service submission, from first clearance to completion.
Floor-by-floor layouts showing sanitary appliances, floor traps, discharge pipes and stacks, ventilation, inspection chambers and the connection to the public sewer, prepared to PUB's Code of Practice on Sewerage and Sanitary Works.
The site plan with the proposed water meter location and the water reticulation schematic that a Licensed Plumber or Professional Engineer submits to notify PUB before WSI works start, drawn to SS 636.
Drawings to support your QP's Development Control (DC) and Detailed Plan (DP) submissions for works affecting sanitary, sewer and used water pumping systems.
Completion drawings reflecting what was actually built, to support your QP's application for PUB sewerage and sanitary clearance for TOP and CSC.
Updated sanitary layouts when toilets, kitchens or wet areas are added, moved or converted, including food premises where the Code requires a grease trap.
Quick revisions when PUB raises comments or asks for clarification, so your submission can be resubmitted without long delays.
Please note: we prepare drawings. Under PUB's rules, sanitary plans for new developments and building works are submitted by a Qualified Person (a registered Architect or Professional Engineer), and regulated water service and sanitary works are carried out by PUB Licensed Plumbers.
WhatsApp or email your architectural plans, site address, the scope of works and who your QP or Licensed Plumber is.
We confirm which drawings the submission needs and send you a clear, itemised quotation.
Layouts and schematics are drawn to the current PUB Codes of Practice and SS 636, then checked before issue.
Your QP or Licensed Plumber reviews, endorses and submits through CORENET or PUB's Business & Professional Portal.
We handle revisions to PUB comments and prepare as-built drawings for TOP and CSC clearance.
For new developments and building works, the developer or building owner must engage a Qualified Person (QP), either a registered Architect or a Professional Engineer with a practising certificate, to prepare and submit plans for the sewerage and sanitary works. The QP is also responsible for making sure the works are built according to the approved plans.
Water service installation works must be carried out by a PUB Licensed Plumber, who can also do the design when no pumping equipment or water tank is involved. If the installation involves pumping equipment or a water tank, a Professional Engineer must be engaged to design it and supervise the works.
Before sewerage, sanitary and drainage works start, the QP obtains Development Control (DC) clearance and then Detailed Plan (DP) clearance. After the works are completed, the QP applies for PUB clearance for the Temporary Occupation Permit (TOP) and then the Certificate of Statutory Completion (CSC). Simple projects that meet PUB's criteria may use a Simplified Submission instead of a DC submission.
Sanitary and sewerage works follow PUB's Code of Practice on Sewerage and Sanitary Works (3rd Edition, March 2025), whose new requirements took effect on 1 September 2025. Water service installations follow the Public Utilities (Water Supply) Regulations and Singapore Standard SS 636, the Code of Practice for Water Services.
Before work starts, the Licensed Plumber or Professional Engineer notifies PUB with a site plan showing the proposed water meter location and a schematic drawing of the water reticulation system. When the works are done, they submit a Certificate of Satisfactory Completion.
PUB states that it does not impose administrative or processing fees for these regulatory submissions. Any fee charged for preparing a submission is a commercial charge set by the service provider, so ask for an itemised quotation.
We prepare the drawings. Submissions to PUB are made by the project's Qualified Person or Licensed Plumber through CORENET or PUB's Business & Professional Portal, as PUB requires. Tell us who your QP or Licensed Plumber is and we will prepare the drawings in the format they need.
Based on PUB's published guidance, checked October 2026. Always confirm current requirements with PUB or your QP.
Send us your plans and scope. We'll tell you what PUB drawings you need and what it will cost.
