Development Bureau Technical Circular (Works) No. 18/2018

3 July 2019: First created.

Title of Circular

Adoption of Building Information Modelling for Capital Works Projects in Hong Kong.



Issued: 27 December 2018.

Effective: 1 January 2019.

Superseding DEVB TC(W) No. 7/2017.


Policy and requirements on the adoption of BIM techmology  in public works projects either by government staff, consultants or contractors.


BIM to be used on capital works projects estimated to cost more than HK$30 Million.

Irrespective of the modes of delivery.


Enhance productivity.

Reduce risks and costs.

Optimize operation and maintenance.

Investigation, Feasibility and Planning Stage

Optional, depending on the perceived benefits.

Design Stage

Mandatory for designs under:

  • Design and Construction consultancy agreements
  • Investigation, Design and Construction consultancy agreements
  • all in-house projects.

Construction Stage


At least an as-built BIM model for contracts not adopting BIM in the design.

Applicable to design-bid-build, design-build, design-build-operate projects.

Asset Management

Works departments to critically review their departmental asset management strategy in order to leverage the technology to enter into the digital built environment.

Entrustment Projects, Sub-vented Projects and Private Projects to be Handed Over to Government

Entrusted projects within Government departments - same policy.

Projects entrusted to organisations outside Government (Airport Authority, MTR Corporation Limited, private developers, etc.), sub-vented projects and private projects to be handed over to the Government - align with the BIM adoption/implementation policy of the organisations, but Works Departments to encourage.

Mandatory BIM Uses

IFP = Investigation, Feasibility and Planning

D = Design

C = Construction

M = Mandatory

M = Mandatory for all T&F proposals or construction works tenders invited on or after 1 January 2019

O = Optional

Use = See the latest version of the BIM Standards of the Construction Industry Council for explanations.

1 Design authoring O M M
2 Design reviews O M M
3 Existing conditions modelling O M M
4 Site analysis O M  
5 3D coordination   M M
6 Cost estimation O Ma Mb
7 Engineering analysis   O O
8 Facility energy analysis   O O
9 Sustainability evaluation O O O
10 Space programming O Mc  
11 Phase planning (4D Modelling)   Md M
12 Digital fabrication   O Me
13 Site utilization planning     Mf
14 3D control and planning     O
15 As-built modelling     M
16 Project systems analysis     O
17 Maintenance scheduling     Mg
18 Space management and tracking     O
19 Asset management     O
20 Drawing generation (drawing production)   M M

a.         Mandatory for project cost budgeting, project cost control and cost evaluation on design options, etc. at design stage as far as practicable.

b.         Mandatory for project cost control, cost evaluation on variation of works, cash flow/spending analysis, etc. at construction stage as far as practicable.

c.         Mandatory for checking client spatial requirements such as compliance with the approved schedule of accommodations, reference plot ratio for building projects and site coverage of greenery for building projects, or other spatial requirements relevant to building/civil projects as considered appropriate.

d.         Mandatory for the construction activities with very high to extreme risk level identified from the Systematic Risk Management (SRM) according to ETWB TC(W) No. 6/2005 or other activities as considered appropriate at design stage.

e.         Mandatory for digitalizing the construction details in the BIM model for mass customized components such as metal cladding, acoustic panels, building façade panels, ceiling panels, acoustic barriers, metal structural members, etc. which are of large quantities and variety in dimensions, shapes, geometries, etc.

f.         Mandatory for the construction activities with very high to extreme risk level identified from the SRM according to ETWB TC(W) No. 6/2005 or other activities as considered appropriate at construction stage.

g.         Mandatory for providing maintenance attributes for facility structures, fabrics and equipment in the as-built models as considered appropriate.

Exceptional Grounds for Exemption

Serious contractual implications.

Substantial impact on project delivery.

Projects of little technical content, e.g.

  • operation of public fill banks
  • paving and painting works
  • slope maintenance works
  • greening works
  • maintenance works under term contracts
  • procurement of vehicles.

Authority for Exemption

Exemption by heads of Works Department partly or wholly.

Records to be kept and the Development Bureau to be informed of the approvals for exemptions with detailed justification.

BIM Software

Specific brand names and models of BIM software not to be specified in consultancy or works tenders, notwithstanding considerations on compatibility.

Tender specifications must be performance and function based.

Production of Two-Dimensional Drawings

2D drawings to be generated from 3D BIM models.

Cease to produce 2D drawings by other platforms if those drawings can be generated from the 3D BIM models.

2D drawings generated from the 3D BIM models need not follow "CAD Standard for Works Projects (CSWP)".

Contractual Requirements

Engagement of BIM sub-consultant or sub-contractor permitted.

In-house staff training is still required.

Consultant's/Contractor's Team Structure

A BIM team to be provided:

  • appropriate for the scale and complexity of the consultancy assignment/works contract
  • including sufficient and technically competent resources to complete all BIM tasks and deliverables specified in the assignment/contract
  • comprising at least [3] personnel (BIM team leader and BIM coordinators) well trained in relevant disciplines.

BIM team leader

  • leads the BIM team
  • holds a key position in the project team structure
  • either has corporate membership of an appropriate professional institution or has a minimum of 5 years relevant post-qualification experience plus university degree or equivalent in an appropriate engineering or construction related discipline
  • has a minimum of 3 years practical experience in management of BIM projects
  • be responsible for the overall BIM managements and process controls

BIM coordinator (more than 1)

  • has a miniumum of 3 years related construction project experience
  • has a minimum of 1 year practical experience in BIM project
  • handles BIM tasks delegated by the BIM team leader such as BIM modelling
  • collaborates information exchange amongst related stakeholders
  • maintains a drawing/information register to record the information to be incorporated in the models.

Proposal highlighting key roles and responsibilities of each position to be submitted within [14] calendar days after commencement of assignment/contract.

Any proposed change of BIM team members to be notified with CV and evidence of equivalent BIM competency of the replacement to the Director/Engineer/Supervising Officer within [7] calendar days (of change?) for approval.

BIM Sub-consultant's/Sub-contractor

Engaging of BIM sub-consultant/sub-contractor permissible.

Approval to be obtained from the Director/Engineer/Supervising Officer before formal engagement.

Involvement of BIM sub-consultant/sub-contractor permissible to be clearly indicated in the project team structure.

Positions of the staff members from the BIM sub-consultant/sub-contractor to be clearly indicated in the BIM team organisation structure.

BIM Training Requirements

Consultant/Contractor to nominate his staff or (not BIM) sub-consultant's/sub-contractor's staff to attend, within [6] months from the commencement of the assignment/contract, training courses organized by the Construction Industry Council:

  • [4] staff members to attend and successfully complete the Building Information Modelling Basic Modelling Courses
  • [4] staff members to attend and successfully complete the Building Information Modelling discipline-specific Advanced Modelling Courses.

Nomination to be approved by the Director/Engineer/Supervising Officer before the commencement of the training course.

In case of failure of nominated staff members to complete the training course, Consultant/Contractor to arrange additional BIM training courses to his staff members to fulfil the contract requirements at his own cost. 

Numbers in [ ] are for reference only and to be suitably determined by the Works Department according to the nature, scale, complexity, mode of project delivery, number of consultant/contractor/sub-consultant/sub-contractor involved, etc. of the project.