PROJECT SCOPE
As-built BIM services
Use as-built BIM modelling services to update digital building models so they reflect agreed constructed conditions, verified site information and final project records.
The employer chooses the talent, agrees the buildings, disciplines, source information, deliverables, timeline and rate, then manages the collaboration directly.
- Define the buildings, systems and model areas in scope
- Agree the site records and verification information to use
- Update models to reflect agreed constructed conditions
- Prepare the required model and handover outputs
SCOPE
What as-built BIM modelling services can cover
As-built BIM work can use agreed site records, scans, drawings and project information to update models for handover, later project use or operational information needs.
As-built model updates
Support can include:
- Updating model geometry
- Revising agreed building elements
- Adding final project information
- Recording confirmed changes
- Updating views and schedules
- Preparing agreed handover files
As-built Revit modelling
As-built Revit modelling Europe projects use can involve updating existing Revit models or creating agreed as-built information from verified project records.
Scan versus model verification
Scan versus model verification can compare agreed scan information with an existing BIM model to identify areas that require review or updating.
Construction-change updates
Models can be revised where installed conditions differ from earlier design or coordination information.
Architectural as-built information
Support can include agreed architectural elements, spaces and building information that need to reflect final constructed conditions.
Structural as-built information
Structural model information can be updated where confirmed site records or project documentation show agreed changes.
MEP as-built information
Building-services models can be updated from agreed installation records, survey information or verified project data.
As-built model checking
Updated models can be reviewed for agreed geometry, information and file requirements before exchange or handover.
Operational handover
As-built BIM for facility management can support the preparation of agreed model information for later operational or asset-management use.
WHEN IT HELPS
When businesses use as-built BIM services
As-built BIM support can help when design or construction models need to be updated before handover or later use.
Record constructed conditions
Design information can change during construction. As-built modelling can update agreed areas so the final model reflects verified project information.
Compare models with site information
Point clouds, surveys or other verified records can help identify where an existing model differs from constructed conditions.
Prepare BIM information for handover
As-built models can provide a clearer final project record for teams that need agreed digital building information after construction.
Prepare the essentials
Useful starting information includes:
- Existing BIM models
- Final drawings or site records
- Point clouds or survey information
- Required BIM software and version
- Disciplines included in the job
- Handover requirements
- The outputs you need
DELIVERABLES
Typical scope and deliverables
As-built BIM work can be structured around source review, model updates, verification and handover.
Getting started
At the beginning of the job, the employer and talent can review:
- Existing BIM models
- Site and survey information
- Final drawings
- Construction-change records
- Required model information
- Handover requirements
Model updating
The talent develops the agreed as-built model.
Deliverables might include revised geometry, updated model information, corrected views, schedules or agreed as-built model files.
Verification and feedback
The updated model can be compared with agreed source information, with differences or missing information recorded for employer review.
Handover and continuity
Where useful, include final model files, agreed exports, verification notes and supporting information that helps the employer continue using the as-built BIM information.
TALENTS
Talents and skills involved
The right experience depends on the building type, project disciplines, source information and handover requirements.
As-built BIM specialist
An as-built BIM specialist can update models from agreed construction records, survey information and final project data.
Revit modelling experience
Revit experience can be useful where existing models need to be updated and prepared as agreed as-built project records.
Scan and verification experience
Some jobs benefit from experience comparing models with point clouds, scans or other verified site information.
Experience level
Updating one defined model area may require different experience from producing multidisciplinary as-built information for a large project.
Choose the experience level that fits the job.
Tools and systems
Include the tools the talent will use in the job.
For example:
- BIM authoring software
- Revit
- Point-cloud or scan information
- IFC workflows
- Common data environments
This helps talents understand the technical environment before they apply.
Explore role-selection guidance
JOB
How to write the job
A useful as-built BIM job explains the existing models, verification information, areas to update and final outputs you need.
Describe the outcome
Explain what you want the work to achieve. For example:
- Update a model to as-built condition
- Compare a scan with an existing BIM model
- Create as-built Revit information
- Update final architectural, structural or MEP models
- Prepare BIM information for operational handover
Define the model scope
List the buildings, disciplines, zones or systems included in the job.
Explain which existing models and final project records are available.
Add the technical context
Include details such as:
- BIM software and version
- Existing model files
- Final drawings
- Point clouds or survey records
- Required file formats
- Handover information
- Access needed for the job
Explain the engagement
State whether you need:
- A defined as-built model update
- Scan versus model verification
- As-built Revit modelling
- Multidisciplinary model updates
- Handover model preparation
The employer and talent can refine the scope, timeline and rate after starting a conversation.
EVALUATION
How to compare as-built BIM specialists
Start with relevant modelling and verification experience, then discuss how the talent would work with your site records and existing BIM information.
Relevant as-built experience
Look for examples involving completed projects, model updates or handover work similar to those included in your job.
Source-information approach
Ask how the talent would work with final drawings, surveys, scans and other agreed project records before changing the model.
BIM software experience
Discuss the BIM applications, model formats and project environment involved and whether the talent has relevant experience.
Verification approach
Ask how differences between the model and verified site information will be identified, recorded and resolved.
Deliverables and handover
Confirm which models, exports, verification notes and supporting information will be delivered at the end of the job.
Talent profiles are reviewed and approved by the VirtualMasst team before employers can see them. The employer still decides which talent is right for the work.
COST
Cost, timeline and engagement factors
The employer and talent agree the rate directly. Several parts of an as-built BIM job can affect the commercial structure.
Project scale
Updating one area can require different work from producing as-built information across an entire building or site.
Model condition
The completeness and quality of existing BIM models can affect the amount of update work required.
Source information
The quality and organisation of final drawings, scans and site records can influence the modelling process.
Number of disciplines
Architectural, structural and MEP information can add different modelling and coordination requirements.
Verification depth
A defined model update may require different work from detailed scan versus model verification.
Handover requirements
Required models, exports and operational information can affect how the final outputs are prepared.
Related BIM work
If the job also includes Scan-to-BIM, IFC validation or wider BIM consulting, define those deliverables separately so the as-built BIM scope remains clear.
Current charges are listed on Pricing.
YOUR NEXT STEP
Find the right talent
Describe the project, existing BIM models, final site information, disciplines and as-built outputs you need. Post the job and start a conversation with talents whose as-built BIM experience fits the work.
The employer chooses the talent, agrees the scope, timeline and rate, manages the collaboration and approves the completed work.
Common data environment consulting
YOUR NEXT STEP
Find the right talent
Describe the project, existing BIM models, final site information, disciplines and as-built outputs you need. Post the job and start a conversation with talents whose as-built BIM experience fits the work.
The employer chooses the talent, agrees the scope, timeline and rate, manages the collaboration and approves the completed work.
Post a job
Find as-built BIM specialists