MEP BIM modelling
Build or update HVAC, plumbing, gas and fire protection models from your supplied design information.
Deliverables: Revit model, agreed views and schedules.
PORTFOLIO / PROJECT SERVICES
Davis
Chan.
Revit Technologist.
Multidisciplinary BIM.
I turn design information into coordinated models, clear drawings and practical tools.
GREATER TORONTO AREA, CANADAHONG KONG / TORONTO
01 / PROJECT ARCHIVEHong Kong International AirportTerminal 2 Expansion · Ceiling BIM
DESIGN INFORMATION → BUILDABLE DETAIL
HVACPlumbing & gasFire protectionElectrical coordinationBIM automation
01 / SELECTED WORK
Models with
a purpose.
From Hong Kong's construction projects to building services in Ontario. A selection of models, details and deliverables from my work.
PROJECT SERVICES
MEP BIM modelling.
Revit automation.
Project-based support for consultants, contractors and BIM teams. Clear deliverables, agreed scope and practical workflows.
CAD & Revit documentation
Drawing revisions, annotations, sheet setup and cleanup for coordinated project documentation.
Deliverables: agreed drawing sheets and editable files.
BIM coordination support
Review linked models, identify clashes and document issues for your project team to resolve.
Deliverables: coordination views and an issue register.
Custom Revit families
Create equipment and component families with agreed geometry, connectors and parameters.
Deliverables: RFA files and parameter guidance.
Dynamo & pyRevit tools
Develop project-specific tools for repetitive modelling, annotation or documentation tasks.
Deliverables: agreed scripts, setup notes and usage guidance.
Services cover modelling, documentation and workflow support. Engineering design decisions and approvals remain with the project's responsible design professional.
WORKING TOGETHER
From brief to handoff.
- Share the brief
Send your scope, reference files, software version and target date.
- Agree the scope
Confirm deliverables, fee, timeline and review rounds before work starts.
- Review & deliver
Review the agreed work, resolve comments and receive the final files.
HOW I WORK
Detail in the model.
Clarity on the sheet.
I focus on how a model will be coordinated, documented and used. When a repetitive task slows that down, I look for a better workflow.
Understand the inputs
Review references, linked models, project requirements and the intended deliverable.
Model & coordinate
Develop geometry and families, check interfaces and resolve conflicts with the team.
Document & refine
Produce plans, details and schedules. Improve annotations and automate repeatable work.
02 / EXPERIENCE
Built through
practice.
A technical path across modelling, construction coordination, fabrication documentation and building services.
SEP 2026 — PRESENTSCARBOROUGH, ON
CURRENT ROLE
Revit Technologist
INVIRO Engineered Systems Ltd.
Support multidisciplinary building services documentation in Revit, including HVAC, plumbing, gas, electrical and fire protection coordination. Prepare and revise drawing sets, schedules and model information for project delivery.
JUL 2025 — AUG 2026MISSISSAUGA, ON
Fire Protection Designer
Onyx-Fire Protection Services Inc.
Developed sprinkler models and drawings, supported BIM coordination and clash detection, performed fire flow tests and hydraulic calculations, and prepared as-built documentation.
OCT 2024 — FEB 2025HONG KONG
Draftsman
Fire x Fire Limited
Prepared Kidde gas suppression layouts, isometric drawings and calculation reports. Coordinated design requirements with contractors and produced shop drawings and fabrication references.
JUL 2022 — JUN 2024HONG KONG
Designer (BIM)
Trigon Building Material Limited
Worked on ceiling BIM for Hong Kong International Airport Terminal 2 Expansion. Reviewed consultant models, developed families, and prepared installation marking plans and material take-offs.
MAY 2021 — JUN 2022HONG KONG
Assistant BIM Engineer
Gammon Construction Limited
Supported architectural and structural modelling, Navisworks coordination, clash reviews and issue tracking. Worked with clients and subcontractors to communicate model information and resolve coordination issues.
JAN 2021 — APR 2021HONG KONG
BIM Modeler Intern
B BIM Creation Limited
Assisted with architectural and MEP modelling in Revit and model checks in Navisworks, building the foundations of multidisciplinary BIM practice.
WORKING TOOLSET
RevitAutoCADNavisworksACC / BIM Collaborate ProBluebeamDynamoHydraCAD / HydraCALCAutoSPRINKProcoreRevizto
03 / TOOLBOX
Make the
repeatable easier.
Small tools and templates built around real drafting problems. My automation work uses AI-assisted Python development, Dynamo and the Revit API, with iteration driven by the drawing workflow.
DEVELOPMENT TOOL / V5.5Spot Coordinate
Spot Coordinate
Aligner
Place a group of native Revit spot coordinates with 45° leaders, a shared text column and adjustable spacing. Choose direction by clicking in the view and repeat placements until Esc.
Development version. Geometry and lifecycle checks are not live Revit tests; review the result visually in a test project.
spot_coordinate_aligner.pyPYTHON / DYNAMO
# Three inputs. Direction by placement.
row_spacing = IN[0]
landing_length = IN[1]
diagonal_component = IN[2]
# Model inches, not paper inches.
paper_mm = model_inches * 25.4 / view.Scale
# Run → select → click → refine → Esc45° LEADERSNATIVE REFERENCESONE UNDO ITEM
Project work log
A blank log for project, discipline, Revit version, task, status and review notes. Based on the way I track drawing work.
Download blank templateCoordination issue register
A reusable issue structure for model references, location, responsible discipline, action and resolution evidence.
Download blank templateDrawing review handoff
A short English email template for sharing revised drawings with scope, file location and review requests.
Download email templateTemplates are blank, reusable editions. They contain no client data.
ONGOING EXPLORATION
Project-specific BIM automation
I explore pyRevit add-ons, Dynamo workflows, Revit MCP connections, family creation and annotation tools. These are areas of active development and learning, alongside my day-to-day modelling work.
OUTSIDE THE MODEL / PHOTOGRAPHY04 / ABOUT
Technical work.
A curious eye.
I’m Davis, a BIM professional based in the Greater Toronto Area, with a background in Hong Kong construction and building services.
I enjoy work where details matter: a family that behaves properly, a drawing that communicates clearly, or a small tool that makes a repetitive task easier.
Outside work, I’m interested in photography, automotive technology, badminton and snowboarding. That same curiosity carries into the way I learn software and investigate how systems work.
- BACKGROUND
- Surveying · BIM · Building services
- LANGUAGES
- Cantonese · English · Mandarin
- FOCUS
- MEP modelling · Coordination · Automation
05 / PROJECT ENQUIRIES
Tell me about
your project.
Share enough detail to discuss scope and pricing. Fees and availability are confirmed after reviewing your brief.
Request a quote
Useful references include marked-up drawings, model excerpts, equipment datasheets or a short screen recording of the task.
Send your enquiry here. Davis will reply using the email address you provide. You can share reference files after making contact.
tszhochn@gmail.comPrefer a direct conversation? Email me with your project scope.