Work-As-Executed (WAE) Checklist
- Rafzan
- Sep 15, 2025
- 1 min read
What is a Work-As-Executed (WAE)?
A Work-As-Executed (WAE) is a final drawing and certification that shows the stormwater system on-site has been built exactly in accordance with the approved hydraulic stormwater design. This certification is mandatory for your Occupation Certificate (OC) – your council or certifier will not issue final sign-off without it.
Steps to Obtain Your WAE Certificate
Hydraulic Stormwater Plan – You must have a copy of the approved Hydraulic Stormwater Design Plan prepared by Rafzan Engineering or another engineer.
Surveyor’s Verification – Engage a licensed surveyor to check and confirm that the stormwater system has been built in accordance with our plan. The surveyor will prepare a WAE survey drawing.
Submit to Rafzan Engineering for a Quote – Send the following documents to Rafzan Engineering: 1. The surveyor’s verified WAE survey drawing. 2. A copy of the approved Hydraulic Stormwater Plan
Engineer Sign-Off – Rafzan Engineering will review the documents, verify compliance, and then issue a Work-As-Executed Certificate.
Provide to Council/Certifier – Submit the signed WAE Certificate (together with the survey plan) to your Council or Private Certifier for your final Occupation Certificate (OC) approval !
Important Notes
· All costs for engaging the surveyor are the responsibility of the client.
· Rafzan Engineering can only certify works based on the verified survey.
For a FREE QUOTE submit your WAE documents to:
Rafzan Engineering
admin@rafzan.com.au | 02 95549311
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