If you are undertaking construction, renovation, or building works in Singapore, there is a good chance you will need PE endorsement before authorities approve your project. Here is the complete 2026 guide.

In short: Foundation design is the geotechnical and structural engineering of a building's substructure — piles, raft slabs, footings — that transfers all building loads to competent ground. In Singapore, foundation design must be endorsed by a registered Professional Engineer (Geotechnical) under the PE Act and submitted to BCA. Common Singapore foundation types are bored piles, driven piles, micropiles, raft foundations, and shallow footings. Foundation design is one of the highest-impact...

In short: An A&A (Addition & Alteration) submission is the BCA approval required for renovation, extension, or change-of-use works affecting structural elements in Singapore. Required when load-bearing walls, columns, beams, or slabs are altered. Endorsement by a registered PE Civil is mandatory before construction. Typical fees: S$1,500–S$5,000 residential, S$3,000–S$10,000 commercial. Timelines: 1–3 weeks for the PE side, 4–8 weeks for full BCA approval. Most renovations that don't touch...