— FAQ
Frequently asked questions
Straight answers to what clients ask us most. Can't find yours? Ask a project manager directly.
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What are A&A works?
Addition and alteration (A&A) works are structural or significant architectural changes to an existing building, such as extensions, roof additions, wall removal or a change of use.
Do A&A works need approval in Singapore?
Yes, when they affect the structure, external appearance or use of the building. These works need approval from URA (Urban Redevelopment Authority) and BCA (Building and Construction Authority), and in many cases a Qualified Person (QP) endorsement, before construction can begin.
Who handles the QP and authority submissions?
We do. We engage the Qualified Person, prepare and manage the URA and BCA submissions, and deal with the agencies on your behalf.
What kinds of A&A projects do you take on?
Landed property extensions (room additions, second-storey and rear extensions), roof additions and attic conversions, condo balcony and yard enclosures, commercial unit reconfiguration and change of use, industrial upgrades such as mezzanines and loading bays, and structural wall and column works.
What are the steps in an A&A project?
An A&A project runs in four steps:
- Site assessment and QP engagement.
- URA and BCA submission and approval.
- Construction to the approved plans by our in-house trades under one project manager.
- Final inspection, as-built documentation and handover with compliance sign-off.
Do I need renovation, A&A works or reinstatement?
It depends on what is changing. Renovation updates a space without structural changes, A&A works change the structure or use of a building, and reinstatement returns a leased unit to its original condition when the lease ends.
| Service | Use it when | Approvals |
|---|---|---|
| Renovation | You want to change layout, finishes, carpentry or M&E without structural work | Building management; authority approval only if structure, fire safety or use changes |
| A&A works | You are changing the structure, external appearance or use of the building | URA and BCA, often with a QP endorsement |
| Reinstatement | Your lease is ending and the unit must go back to shell condition | Landlord or building management sign-off at handover |
Last reviewed: October 2026






