BIM As-Built Documentation Services

01 — The Challenge

The final constructed building often differs from the original design due to site changes, approved variations, coordination adjustments, substitutions, and installation constraints.

Without accurate as-built documentation, owners and facility teams may face:

• Difference between design models and actual site conditions

• Incomplete or outdated construction drawings

• Missing records of site changes and approved variations

• MEP systems installed differently from design intent

• Unrecorded pipe, duct, cable tray, and equipment locations

• Difficulty identifying concealed services

• Inaccurate asset information

• Missing equipment and component data

• Inconsistent redline and handover documentation

• Difficulty managing future renovation or retrofit projects

• Time-consuming site surveys to locate existing systems

• Limited digital information for facility management

VDEC helps convert construction information into a reliable digital record that reflects the building as it was actually constructed and installed.

02 — VDEC Solution

Our BIM As-Built Documentation service combines BIM modeling, construction documentation, site information, redline incorporation, and quality control to develop accurate project records.

As-Built BIM Modeling

• Architectural As-Built Models

• Structural As-Built Models

• HVAC As-Built Models

• Electrical As-Built Models

• Plumbing As-Built Models

• Fire Protection As-Built Models

• MEPF Federated As-Built Models

Construction Record Integration

We incorporate available construction information, including:

• Redline Drawings

• Approved Shop Drawings

• Site Markups

• RFI Information

• Change Orders

• Approved Variations

• Installation Records

• Inspection Information

• Submittals

• Equipment Information

Site-to-BIM Documentation

Where required, we support the development of as-built information from:

• Site Survey Data

• Laser Scanning

• Point Clouds

• Scan-to-BIM Information

• Photographic Records

• Existing Documentation

• Field Verification Data

Digital Handover

• Asset Information

• Equipment Data

• COBie / Asset Data Support

• O&M Information Integration

• Equipment Schedules

• Room & Space Information

• Digital Handover Documentation

Our objective is to provide a structured digital representation of the completed asset that can be trusted for handover, operation, maintenance, and future projects.

03 — Deliverables

As-Built BIM Models

• Architectural As-Built BIM

• Structural As-Built BIM

• HVAC As-Built BIM

• Electrical As-Built BIM

• Plumbing As-Built BIM

• Fire Protection As-Built BIM

• Multidisciplinary Federated Model

• Existing Condition BIM Model

As-Built Drawings

• Floor Plans

• Reflected Ceiling Plans

• Elevations

• Sections

• MEPF Layouts

• Equipment Layouts

• Pipe & Duct Layouts

• Electrical Layouts

• Fire Protection Layouts

• Isometric Drawings

• Riser Diagrams

• Detailed Sections

Asset Documentation

• Equipment Schedules

• Asset Registers

• Equipment Tags

• Manufacturer Information

• Model / Serial Information

• Warranty Information

• Maintenance Information

• Location Data

• System Information

Handover Documentation

• As-Built Drawing Sets

• As-Built BIM Models

• Asset Information

• Digital Handover Data

• O&M Information Integration

• Room & Space Data

• Equipment Schedules

• Model Health / QA Reports

• Final BIM Documentation

04 — Our Process

01. Handover Requirement Review

We review the project's BIM Execution Plan, Employer's Information Requirements, handover requirements, LOD requirements, asset data requirements, project standards, and client-specific documentation procedures.

02. Information Collection

We collect available:

• Approved design models

• Construction models

• Shop drawings

• Redlines

• Site markups

• RFIs

• Change orders

• Approved variations

• Equipment schedules

• Installation information

• Survey / scan data

03. Existing Model Assessment

The available BIM models are reviewed to identify gaps between design information and the information available from construction.

04. Construction Change Identification

We identify changes that occurred during construction, including revised routing, relocated equipment, modified openings, changed components, and other approved site variations.

05. Site / Record Verification

Where applicable, site survey information, laser scan data, point clouds, photographs, or field records are used to verify actual constructed conditions.

06. As-Built BIM Development

The BIM model is updated to represent the actual constructed condition, including geometry, systems, equipment, spaces, and required asset information.

07. Multidisciplinary Coordination

Updated architectural, structural, HVAC, electrical, plumbing, fire protection, and specialist information is coordinated within the final digital environment.

08. Asset Information Integration

Relevant equipment and asset information is incorporated according to the client's required information structure.

09. QA/QC & Validation

Our structured quality-control process checks:

• Model accuracy

• Geometry

• Locations

• Levels

• Equipment

• System connectivity

• Asset information

• Drawing consistency

• Model-to-record information

10. Final Digital Handover

The completed BIM models, drawings, schedules, asset information, and supporting documentation are prepared in the required formats for project closeout and facility operations.

05 — Software & Technology

VDEC uses industry-standard BIM, coordination, and construction technologies, including:

Autodesk Revit | Navisworks | AutoCAD | Autodesk Construction Cloud (ACC) | BIM 360

For scan-based as-built projects, our workflows can also incorporate point-cloud and laser-scan informationsupplied by the project team.

We can align deliverables with client-specific BIM standards, Employer's Information Requirements (EIR), BIM Execution Plans, LOD requirements, asset information requirements, Common Data Environments, and digital handover standards.

06 — Benefits

Accurate Digital Record

Create a reliable BIM representation of the completed building and installed systems.

Better Project Handover

Provide owners with structured digital information at project closeout.

Improved Facility Management

Support facility teams with easier access to building, system, equipment, and asset information.

Reduce Future Survey Requirements

Accurate digital records can reduce the need to repeatedly investigate existing conditions for routine planning and maintenance activities.

Better Maintenance Planning

Provide location and identification information for equipment and building systems.

Improved Renovation & Retrofit Planning

Give future design teams a better understanding of existing conditions before modifications begin.

Reduced Operational Risk

Improve visibility of concealed and difficult-to-access building services.

Better Asset Information

Create structured equipment and component information that can support facility management workflows.

Improved Data Traceability

Connect final documentation with approved changes, construction records, and project information.

Long-Term Digital Asset Value

Transform project closeout information into a useful digital asset that can support the building throughout its lifecycle.

07 — Example Project

BIM As-Built Documentation for a Commercial Development

Project Type: Commercial / Mixed-Use Development
Scope: As-Built BIM + MEPF Documentation + Digital Handover
Disciplines: Architecture + Structure + HVAC + Electrical + Plumbing + Fire Protection
LOD: 500
Deliverables: As-Built BIM Models + Drawings + Asset Information

VDEC Approach

VDEC developed the project's final as-built BIM environment by reviewing approved construction drawings, shop drawings, redlines, RFIs, site markups, and available installation information.

The team identified differences between the original design models and construction records, particularly within MEPF routing, equipment locations, shafts, plant rooms, ceiling zones, and service corridors.

Where available, field verification and point-cloud information were used to validate existing conditions.

The updated multidisciplinary models were then coordinated and reviewed for geometry, system information, equipment data, and model-to-drawing consistency.

Outcome

The project team received a structured and coordinated as-built BIM environment, providing a reliable digital record for project handover and supporting future facility management, maintenance, renovation, and retrofit activities.

08 — Your Building. Accurately Documented.

A project does not end when construction is complete.

The information created during design and construction becomes a valuable asset when it accurately reflects what was actually built, installed, and commissioned.

VDEC helps transform construction records and site information into reliable As-Built BIM Models, drawings, asset information, and digital handover documentation.

Whether you require as-built BIM modeling, MEPF record documentation, Scan-to-BIM, asset information, or complete digital handover support, VDEC can help create a dependable digital record of your facility.