There is no Asian building code. A practice working across Singapore, Malaysia, China, and Japan is working against four unrelated regulatory systems, with different legal structures, different enforcement bodies, different documentation expectations, and three languages other than English. This guide sets out how each system is organised, what has changed recently in each, and what that means if you work across more than one of them.
The four systems at a glance
| Country | Main instruments | Who reviews and enforces | Recent shift |
|---|---|---|---|
| Singapore | Building Control Act and regulations, BCA approved documents, SCDF fire requirements, accessibility code | BCA, SCDF, URA and other agencies, with Qualified Persons responsible for submissions | CORENET X becomes mandatory for all new projects on 1 Oct 2026, using openBIM IFC-SG submissions |
| Malaysia | Uniform Building By-Laws 1984, made under the Street, Drainage and Building Act 1974 | Local authorities, with states adopting and gazetting amendments individually | Adoption of by-law amendments varies between states |
| China | GB national standards, including the mandatory GB 55000 series general specifications | MOHURD and local housing and urban-rural construction bureaus | Mandatory requirements consolidated into general specifications, for example GB 55037-2022 for building fire protection |
| Japan | Building Standards Act and its Enforcement Order, plus building energy efficiency legislation | Local building officials or designated confirmation and inspection bodies | From 1 Apr 2025, energy conformity applies to essentially all new buildings and the 4-go review exemption is narrowed |
Singapore: the most digital, and the most demanding
Singapore regulates building work through the Building Control Act and its regulations, supported by approved documents, fire requirements administered by the Singapore Civil Defence Force, and an accessibility code. Responsibility sits heavily on the Qualified Person who makes the submission.
What sets Singapore apart is the submission process. CORENET X routes a submission to the participating agencies for concurrent review, and it is built around an openBIM format, IFC-SG. It has applied to the largest new projects since October 2025 and becomes mandatory for all new projects from 1 October 2026. In effect, Singapore has made a structured, machine readable model a regulatory deliverable. We covered the detail in our guide to CORENET X.
Malaysia: one set of by-laws, adopted state by state
Malaysia's core technical requirements sit in the Uniform Building By-Laws 1984, which are subsidiary legislation under the Street, Drainage and Building Act 1974 and are enforced by local authorities. The by-laws cover the substance you would expect, including space and light, construction requirements, and fire safety provisions.
The structural point to understand is adoption. Because the by-laws operate through state and local adoption, amendments do not take effect everywhere at once, and historically the pace of adopting amendments has varied considerably between states. The practical result is familiar to anyone who has worked in a federal system: the applicable version of the rules is a function of where the project is, so confirm the version in force with the local authority rather than assuming the latest amendment applies.
China: mandatory general specifications on top of a large standards estate
Chinese construction requirements sit in the national GB standards system, where GB denotes a mandatory national standard and GB/T a recommended one. Historically, mandatory provisions were scattered as individual compulsory clauses across a large number of design codes, which made it difficult to establish what was actually binding.
The reform has been to consolidate those binding requirements into fully mandatory general specifications, the GB 55000 series, issued by the Ministry of Housing and Urban-Rural Development, where every provision must be complied with. The general code for building fire protection, GB 55037-2022, is a prominent example and took effect in June 2023. These sit alongside, and in places supersede parts of, the older design codes that teams may still have on the shelf, so establishing which document governs a given requirement is a real task in itself.
For international teams there is a second obstacle that rarely gets acknowledged: the codes are published in Chinese, and unofficial translations vary in quality and currency.
Japan: a mature system that just got stricter
Japan regulates through the Building Standards Act and its Enforcement Order, with building confirmation carried out by local building officials or designated confirmation and inspection bodies before work starts, and inspections through to completion.
The April 2025 amendments changed the workload substantially at the smaller end of the market. Energy conservation conformity now applies to essentially all new buildings, and the review exemption that let small wooden houses omit structural documentation has been narrowed, so ordinary two-storey wooden houses now go through structural review. We covered this in our guide to the 2025 Building Standards Act amendments.
What this means if you work across Asia
Three things follow from the comparison.
- No single rule set covers the region. Unlike markets built on a shared model code, these four systems share no common parent. A compliance tool with pre-encoded rules would need four unrelated rule sets, and would still be behind the next amendment.
- The governing document is a moving, local question.Which version applies depends on the state in Malaysia, on which general specification supersedes which older code in China, and on when you submit in Singapore.
- Language is a compliance issue, not just an inconvenience.The binding text in China and Japan is not in English, and working from an out-of-date translation is a genuine risk.
A practical approach
Check each project against the document that actually governs it, in the language it is written in. That is how UptoCode works: you upload the code, standard, or local requirement that applies, along with your PDF drawings and IFC model, and every finding comes back cited to the clause and to the drawing or model element it came from, so a qualified professional can verify it. When a state adopts an amendment or a new general specification takes effect, you upload the new text and check again rather than waiting for a vendor to encode it.
See how UptoCode reads BIM and IFC models, read the guide to AI compliance checking, or create a free account and run a cited check on your next Asian project with 65 free credits.
Last reviewed 28 July 2026. This article is general information, not compliance advice, and it summarises four complex national systems at a high level. Confirm the requirements, current editions, and local adoption for your project with the relevant authority in the country concerned.