🚧 Commencement Notice Builder
This is the notice for your client and supervisor, not the filing with the authority.
We report that the works below have commenced under the terms of the contract, with the accompanying documents.
| Project | Site address | ||
|---|---|---|---|
| Client | Contractor | ||
| Contract date | Contract amount | ||
| Scope and scale | |||
| Start date | Scheduled completion | ||
|---|---|---|---|
| Duration (days) | Schedule summary |
| Role | Name | Qualification | Contact |
|---|---|---|---|
Attached: This notice is for the client and supervisor. For permitted works the building owner must separately file a commencement report with the permitting authority (Building Act Art. 21(1)); the supervisor and contractor must co-sign it (Art. 21(2)). The authority notifies acceptance within three days. Copies are usually one for the contract department and one for the supervising department; add a third for the supervisor where one is appointed. For contracts under KRW 7 billion, the contractor must self-perform a statutory share of the labour cost and notify the direct-construction plan to the client within 30 days of contract signing (Framework Act on the Construction Industry Art. 28-2, where applicable).
| Submitted on | Contractor | Site manager | Supervisor |
|---|---|---|---|
| Date: (Sign) | Date: (Sign) | Date: (Sign) | Date: (Sign) |
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💡 Planned scheduleRecommended
A phase table with weights supports progress claims later, and most clients require it as an attachment.
You may omit these. We only tell you the risk.
- TitleCommencement notice (with cover) · 12/12
- Project overviewProject overview (full) · 12/12
- PeriodConstruction period (full) · 12/12
- Site organisationSite organisation (roster) · 12/12
- AttachmentsAttachments + statutory notice · 12/12
- SubmissionSubmission and acknowledgement · 12/12
- LogoCompany logo · 3/12
Drag or use the arrows. ⇥ places a block beside the row above, ⇤ gives it its own row again. ＋− adjust one column; side-by-side items trade width with each other.
Colors stay; only the header, tables and signature layout change
Harbor Mist
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- Logo
- Title
- Project overview
- Period
- Site organisation
- Attachments
- Submission
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⚠️ This notice is a document between contracting parties. For permitted works the building owner must separately file a commencement report with the permitting authority (Building Act Art. 21(1)), co-signed by the supervisor and contractor (Art. 21(2)). That filing uses a prescribed form this tool cannot replace.
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What this tool does
A commencement notice is what the contractor hands to the client and the supervisor when work begins. The point most often confused is how it relates to the statutory filing. Under Article 21(1) of the Building Act, the building owner files a construction plan with the permitting authority, and under Article 21(2) the supervisor and the contractor must co-sign that filing. The commencement notice, by contrast, is a document between contracting parties: there is no prescribed form and every client asks for slightly different contents. This builder produces that notice. Fill in the project overview, start date, site manager and attachments, and you can also record in the body how it differs from the statutory filing so no one later assumes one covered the other.
Who uses this
- Preparing the first commencement notice after contract award
- Consolidating the supervisor's list of start-up documents onto one page
- Notifying the client of the site manager and the safety and quality staff
- Attaching a planned schedule so progress claims have an agreed baseline
- Preventing the assumption that filing the notice also completed the statutory filing
How to use
- 1Use the exact project name from the contract. A different name here breaks the paper trail at progress claims and final account.
- 2Match the start and completion dates to the contract. The start date anchors the construction period and any delay damages.
- 3Always name the site manager and give a contact number; they receive contractual notices on your behalf.
- 4Choose the attachment block that includes the statutory notice so the distinction is recorded in the document.
Notice versus statutory filing
The commencement notice runs from contractor to client and supervisor; the statutory filing runs from building owner to permitting authority. Article 21(1) of the Building Act requires an owner who intends to start work on a permitted or notified building to file a construction plan with the authority in the manner prescribed by ministerial rules. Article 21(2) requires the supervisor, where one has been appointed, and the contractor to sign that filing together. Article 21(3) requires the authority to notify acceptance, or an extension of the processing period, within three days of receipt, and Article 21(4) deems the filing accepted on the day after that period ends if no notification is given. Article 21(6) further requires copies of the contracts under Article 15(2) to be attached for buildings permitted under Article 11. Filing the notice does not discharge any of this.
Worked examples
Public sector project
Copy the client's list of start-up documents into the attachment table and record the number of copies. The site manager appointment and the planned schedule are asked for by nearly every public client.
Private building work
The owner files separately, so choosing the attachment block with the statutory notice makes the division of roles explicit. Flag early that the supervisor and contractor must co-sign the filing.
Small fit-out or services work
The compact overview and period blocks are enough. Do not drop the start date or the site contact, though: both become the reference points in any later dispute about delay or defects.
Frequently asked questions
How does the notice differ from the statutory filing?
The sender and the recipient differ. The notice goes from contractor to client and supervisor as a contractual document; the filing goes from building owner to the permitting authority under Article 21(1) of the Building Act. Filing the notice does not complete the statutory filing, and making the statutory filing does not discharge your notice to the client. Handle both.
Who has to sign the statutory filing?
Under Article 21(2), where a construction supervisor has been appointed, that supervisor and the contractor must both sign the filing. The owner is the filing party, but three parties appear on the document. Delays waiting for the supervisor's signature are common, so build that step into the start-up programme.
How quickly is the filing accepted?
The authority must notify acceptance, or an extension of the processing period, within three days of receipt (Article 21(3)). If it does not, the filing is deemed accepted on the day after that period ends (Article 21(4)). In practice requests to supplement the attachments often add time, so allow margin.
What should be attached to the notice?
There is no statutory list, so it varies by client. Start with the contract and the site instructions. In practice most clients ask for the site manager appointment, a planned schedule, safety plan documents and proof of insurance. Recording what was submitted, and in how many copies, prevents later disputes about missing documents.
Can the start date differ from the contract?
Avoid it. The start date begins the construction period and anchors delay damages. If actual mobilisation differed, state the fact and the reason clearly and pursue a variation or extension separately. Putting a different date only in the notice guarantees an argument later about which date governs.
Must the site manager be named?
Yes. The site manager receives instructions and notices on the contractor's behalf. If nobody is notified, whether the client's later instructions were validly served becomes contestable in itself. Include a contact number as well.
Cautions
- •This document is for the client and supervisor. For permitted works the owner must separately file with the permitting authority.
- •The statutory filing uses a form prescribed by ministerial rules and cannot be replaced by this builder.
- •Use the contract project name exactly; every later payment and completion document is grouped under it.
- •Attachment lists differ by client. Check the contract and site instructions first.
Last reviewed: 2026-09-04