Building or remodelling a BHU is not all ordinary decoration. Where 3 or more rooms, toilets, brick walls, solid floor slabs, above-ground drainage or external ventilation ducts are involved, you first need to judge whether it is Class I minor works or requires formal alteration and addition (A&A works) submission.
This service is pre-certification risk assessment and process coordination; it does not replace the formal design, supervision, submission or certification of a qualified professional.
Building 3 or more new rooms, toilets, brick walls, solid floor slabs and above-ground drainage — the most common high-risk items.
Class I / II pre-commencement notice; not an approval wait, but must be submitted per procedure and handled by qualified persons.
Post-completion document deadline; MW02 / MW04 / MW05 etc. affect later certification and checks.
Works beyond minor works need submission; where structural walls, beams/columns or major changes are involved, do not package them as Class I.
Alterations & Additions; when works exceed the minor works scope, submission, approval and consent may be required.
Authorized Person; usually a building professional, responsible for plans, submission or related statutory-procedure judgement.
Especially important where floor loading, beams/columns, structural walls or main structure are involved.
One of the common responsible roles for Class I minor works.
Must hold the corresponding minor works class, type and item qualification.
Different classes use different forms; the key is not to miss pre-commencement and post-completion documents.
We look at the works list, floor plans, on-site photos, room count, toilets, walls, floor slabs, drainage and ventilation scheme together, to help tell apart minor works, A&A, and certification and reporting risk.
Split the quote into wall, floor slab, drainage, ventilation, fire safety, plumbing/electrical, structure and document items.
Judge the possibility of ordinary decoration, Class III / II / I, or formal A&A.
List the questions to ask the works party and professionals, document gaps, cost and certification risk.
The minor works system handles works procedure and safety risk; a BHU must still be certified overall against the minimum living-environment standards, the site, statutory orders, fire safety, ventilation, plumbing/electrical and documents. Both routes should be viewed together before work starts.
| Works situation | Owl Standard recommendation |
|---|---|
| Ordinary finishing or cleaning only | Keep photos and records; still confirm it doesn't affect fire safety, ventilation and plumbing/electrical. |
| 3 or more rooms and toilets | Review along the Item 1.41 direction first; start with MW01 and PBP／PRC. |
| Structural walls, beams/columns or major changes | Do not package as Class I; refer to an AP／RSE to judge the A&A route. |
| Works already done but documents insufficient | First compile the works evidence and site information, then have a qualified person judge the remedy. |
Send us the quote, floor plans, on-site photos or works list, and we'll first review the minor works, A&A, document and certification risk for you.
WhatsApp: works route enquiry