Space (Area Requirements) — Notes
Provenance
- Source: CORENET X Code of Practice v3.1, Section 4 (BIM Data Representation — IFC+SG), pages 111–127.
- Source link: CORENET X — IFC-SG Glossary of Identified Components ↗
- Discipline: ARC · Authorities: URA
- 5 IFC binding(s), 23 parameter(s).
IFC binding breakdown
IfcSpace— subtypes: AREA_GFA — 8 param(s), table formatura.IfcSpace— subtypes: AREA_GFA — 4 param(s), table formatura.IfcSpace— subtypes: AREA_GFA — 7 param(s), table formatura.IfcSpace— subtypes: AREA_GFA — 3 param(s), table formatura.IfcSpace— subtypes: AREA_GFA — 1 param(s), table formatura.
Property prefix groups (IFC-SG Glossary)
Source: "Space (Area Requirements) property prefix" section on the CORENET X glossary
page under the parent Space component (id=d0d2f5c7-f7dc-4c76-89dd-610e553e42c9),
retrieved 2026-07-10. The 23 parameters split into 5 prefix families:
| Prefix | Purpose | Params |
|---|---|---|
| AVF | Verifying GFA to be included/excluded | 1 |
| AGF | GFA information (development intensity, planning controls, GFA exemption/bonus) | 8 |
| AST | Strata information (ownership) | 4 |
| ALS | Landscape information (LRA / LUSH assessment) | 3 |
| ACN | Connectivity information (pedestrian/cyclist access, POPS) | 7 |
⚑ Mandatory inputs (explicitly stated on the glossary page)
AVF_IncludeAsGFA— "must be checked for all areas that are proposed to be included as GFA". Only property with the AVF prefix.AGF_DevelopmentUse— "must be keyed in for all areas in relation to GFA evaluation".
◆ Key (not phrased as "must")
AST_AreaType— the glossary calls this "a key property" for the strata layer: it decides whether a space is private strata, strata (communal) or common area.
Membership by prefix
- AVF (1): AVF_IncludeAsGFA ⚑
- AGF (8): AGF_DevelopmentUse ⚑, AGF_Name, AGF_UnitNumber, AGF_BonusGFAType, AGF_Note (required if AGF_Name = "Others"), AGF_UseQuantum, AGF_BuildingTypology, AGF_SupportingFacility
- AST (4): AST_AreaType ◆, AST_LegalArea, AST_Prop_StrataLotNumber, AST_Extg_StrataLotNumber
- ALS (3): ALS_LandscapeType, ALS_GreeneryFeatures, ALS_Species
- ACN (7): ACN_ConnectivityType, ACN_ActivityGeneratingUseType, ACN_IsPavingSpecified, ACN_PavingSpecification, ACN_IsOpen24HoursToPublic, ACN_OpenTime, ACN_CloseTime
Note: this prefix section is newer than the CoP v3.1 extraction and the 2026-06-13 glossary scrape — it exists only on the live glossary page.