Singapore · pre-commencement compliance
Everything you must clear
before you break ground.
Approvals, licences, appointments and statutory notifications for a Singapore worksite are spread across more than eight agencies and every utility that owns something under your site. Miss one and the exposure is not a delay — it is a stop-work order, a damaged live cable, or prosecution.
CORENET X becomes the mandatory submission route from 1 October 2026
BCA's e-submission stack is moving off CORENET 2.0. If your project team is still preparing submissions the old way, the changeover lands mid-project for most jobs starting now — confirm your QP and builder are onboarded before your plan submission window.
The map
Five stages, in the order they actually block you
These do not run in parallel. Each stage gates the next: you cannot get a structural works permit without an approved plan, and you cannot break ground on a permit alone if a live gas main runs under the site. Lead times below are the statutory minimums, not what agencies realistically take.
Planning and plan approvals
Establishing that what you intend to build is allowed on that plot, and that the design is sound.
| Clearance | Authority | What it turns on |
|---|---|---|
| Planning Permission (Written Permission) | URA | Land use, plot ratio, height and setback compliance for the site's zoning. |
| Building Plan approval | BCA | Architectural compliance with the Building Control Act and its regulations.Building Control Act 1989 |
| Structural Plan approval | BCA | Submitted by a QP who is a Professional Engineer registered in the civil or structural discipline. Certification by an Accredited Checker applies to the structural submission. |
| Technical agency clearances | SCDF, PUB, NEA, LTA, NParks, SLA | Fire safety, drainage and water, environmental health, traffic and road interface, greenery, land title. Which apply depends on the site — they are cleared alongside the plan submissions, not after. |
Licences and appointments
The people and firms doing the work must themselves be licensed and registered before a permit will issue.
| Requirement | Held by | Notes |
|---|---|---|
| Builder's licence | Main contractor | General Builder Class 1 or Class 2 under the Builders Licensing Scheme. Without the correct class, a permit application tied to a structural submission will not be processed. Specialist Builder licences apply to specified works. |
| Qualified Person (QP) | Project | Registered Professional Engineer (civil or structural) for structural submissions; appointed to supervise the works. |
| Accredited Checker | Project | Independent check of the structural design, engaged separately from the design QP. |
| Registered Earthworks Supervisor (RES) | Site supervisor | In place since April 2018. Only a supervisor who has passed the RES course and is registered with SP PowerGrid may supervise a site near high-voltage cables or gas pipelines. |
| Licensed cable detection workers | Detection crew | IMDA-licensed. TCDW for telecommunication cables, LCDW for power. They must physically verify the drawings on site before you dig. |
| WSH Officer or WSH Coordinator | Site | Which one is required depends on contract value and workforce thresholds under the WSH regulations. |
Before you break ground — the NCECore
The stage that catches out contractors who have every permit in hand. Detailed in full below.
| Step | Owner | Notes |
|---|---|---|
| Permit for structural works | BCA | Applied for jointly by the developer, the QP and the builder once the structural plan is approved. Structural works cannot start without it. |
| Obtain service drawings | SP PowerGrid and each telco | Electricity cable plans and gas plans must be obtained before earthworks.Electricity Act · Gas Act |
| Notice for Commencement of Earthworks (NCE) | Every affected utility | At least 7 days before earthworks begin, filed separately with each owner. Works may only start once approvals and requirements have been issued.Telecommunications Act s.29(1) |
| Comply with the Letter of Requirements | SP PowerGrid | Issued for earthworks and binding on the contractor. It may include trial trenches, hand-digging zones and diversion instructions. |
Site setup and statutory notifications
Obligations that attach the moment the site becomes a workplace, independent of the building approvals.
| Obligation | Authority | Notes |
|---|---|---|
| Workplace notification / registration | MOM | Whether a site must be notified or registered turns on how it is classified and the risk level of the activities.Workplace Safety and Health Act |
| Risk assessment before work starts | MOM | Hazards identified, risks assessed and controls in place before work begins — not documented afterwards.WSH (Risk Management) Regulations |
| Design for Safety | MOM | Obligations attach at design stage, ahead of construction.WSH (Design for Safety) Regulations 2015 |
| Worker training and site induction | MOM | Construction safety orientation for workers, plus a site-specific induction before anyone starts. |
| Earth control measures, noise and vector control | PUB, NEA | Silt and discharge control, construction noise limits and mosquito breeding control. Requirements scale with site size and location — confirm the applicable thresholds for your site. |
| Work passes and injury compensation insurance | MOM | Valid passes for every foreign worker, and work injury compensation insurance in force from day one. |
Road, traffic and the public interface
Applies the moment your works touch a public street — the stage most often left to the last week.
| Requirement | Authority | Notes |
|---|---|---|
| Permit for works on or affecting a public street | LTA | Required for road opening and works occupying or affecting the road reserve. Conditions attach to reinstatement and to how long the road may be occupied. |
| Traffic management plan | LTA | How traffic is diverted or controlled past the work zone, including signage, barriers and — for single-lane shuttle working — temporary signals. |
| Work zone traffic control equipment | Contractor | Signage, cones, barriers and portable traffic lights, in place and working before the lane closure goes live. |
Stage 3, in detail
The Notice for Commencement of Earthworks
Singapore's ground is dense with live services: high-voltage cables, gas mains, water and sewer, and the fibre backbone. The law puts the burden on whoever is digging to find out what is down there first — and to prove it was located, not merely drawn.
Proximity, not intent
You do not get to decide the risk is low. Earthworks within the vicinity of a utility's services trigger the notification duty — for telecommunications cables, works within 15 metres require an NCE. Depth and method do not exempt you.
At least 7 days, per owner
Seven days is the floor, and it runs separately for each utility. There is no single submission that covers them all — each owner has its own form, its own fee and its own conditions, and each must come back to you before you dig.
Who owns what is under your site
| Owner | Assets | Notes |
|---|---|---|
| SP PowerGrid | Electricity cables, incl. high voltage | Cable plans plus a Letter of Requirements; RES supervision applies near HV. |
| SP PowerGas | Gas mains and services | Gas plans required before earthworks; 7 days' notice near gas pipes. |
| Singtel | Telecom cables and chambers | NCE required for works within 15 m; TCDW detection required. |
| NetLink Trust | Fibre network | Operates its own NCE application route for the fibre network. |
| StarHub | Telecom cables | Separate notification under the same statutory duty. |
| M1 | Telecom cables | Separate notification under the same statutory duty. |
| PUB | Water mains, sewers, drains | Detection and clearance where water and sewerage assets are affected. |
| NEA | Assets under its charge | Included in standard cable detection sweeps. |
Not every utility owns something under every site, and this list is not a substitute for a site-specific search. The point is that the number of counterparties is set by what is buried there — not by the size of your job.
What a complete submission carries
Site and project
- Project details and stakeholders
- Site boundary drawing
- Proposed works programme
People on record
- Registered Earthworks Supervisor
- Registered Earthworks Operator
- Person in charge on site
Proof of location
- Trial trench proposal and photos
- Detection by licensed TCDW / LCDW
- Measures to prevent damage to services
Why this is not paperwork
The downside is criminal, not commercial
A struck cable is not billed as a variation. Under the Telecommunications Act the exposure sits on the person carrying out the earthworks, and the regulator publishes the names of those convicted.
or up to 5 years' imprisonment. The maximum penalty on conviction for damaging a telecommunications cable in the course of earthworks, under section 49 of the Telecommunications Act. The repair cost and the service outage sit on top of that.
Convictions are published
EMA maintains a public list of convicted earthworks contractors. Beyond the fine, the record is visible to anyone assessing whether to put you on a tender — which is the part that outlasts the penalty.
The other half of the exposure is time: a damaged main stops your site, and the reinstatement runs on the utility's schedule, not yours.
From experience
Where submissions come back
Most rejections are not about the works. They are about a file that does not let the utility's reviewer establish, from the paper alone, that the ground has actually been proven.
Drawings without detection
Submitting the utility's own plan as evidence of position. The plan is the starting point; the licensed detection sweep and trial trench are what prove it on the ground.
The 7 days counted wrong
Notice counted from the date you sent it rather than from a complete submission, or counted once for all owners instead of separately for each.
Unregistered supervision
Naming a site supervisor who has not passed the RES course or is not registered with SP PowerGrid, on a site that runs near HV cables or gas.
Boundary does not match the works
A site boundary drawn to the contract area while the excavation, access track or spoil heap sits outside it.
Missing an owner entirely
Filing with the obvious three and missing a fibre or gas asset that a search would have shown. The duty is per owner, and silence is not clearance.
Starting on acknowledgement
Treating a receipt as approval. Works may only begin once the owner has issued its approval and requirements — including any diversion instructions.
NCE filing and pre-commencement advisory
We file it, chase it, and tell you when you can dig.
Send us the site boundary and your programme. We identify every owner with assets under the site, prepare and submit each NCE, coordinate the licensed detection and trial trenching, and hand you a dated clearance position per owner — so you know precisely which parts of the site are released and which are not.
Two minutes, and nothing is charged — we review the site and come back with a fee first.
Working a lane closure or shuttle-working arrangement as part of the same job? We also supply the work-zone traffic control — portable LED traffic lights.
FAQ
Common questions
Is one NCE enough for the whole site?
No. The duty runs per utility owner. Each owner that has assets in the vicinity of your works needs its own notification, with its own supporting documents, and each responds on its own timeline. A site with power, gas and three telcos underneath is five separate submissions.
Does the 7 days start when I submit?
Treat 7 days as the statutory floor running from a complete submission, not from a first attempt. If a submission is returned for missing detection evidence or an unregistered supervisor, the clock you were relying on is gone — which is why rejections are expensive even when they are quick to fix.
We are only digging half a metre. Do we still need this?
Yes. The trigger is proximity to the services, not your excavation depth. Shallow works strike fibre and low-voltage services regularly, and the penalty provisions do not carve out shallow digging.
Can our own foreman do the cable detection?
Only if he holds the licence. Detection must be carried out by an IMDA-licensed cable detection worker — TCDW for telecommunications, LCDW for power. Detection by an unlicensed person is not evidence, and a submission relying on it is not complete.
What is the difference between RES and the detection worker?
They are different roles. The licensed detection worker locates and marks the services. The Registered Earthworks Supervisor supervises the works near HV cables and gas pipelines, and must have passed the RES course and be registered with SP PowerGrid. A site can need both.
The utility has not replied and we are behind. Can we start?
No. Works may only start once the owner has issued its approval and requirements, including any diversion instructions. An acknowledgement of receipt is not an approval. Starting without it is the exposure described above.