BIM Modeling – Scan to BIM Services

01 — The Challenge

Working with existing buildings can be challenging when accurate drawings and documentation are unavailable, outdated, or inconsistent with actual site conditions.

Common challenges include:

• Missing or outdated as-built drawings

• Differences between existing documentation and site conditions

• Complex existing structures and MEPF systems

• Difficulty capturing concealed or irregular building elements

• Large volumes of point-cloud and laser scan data

• Time-consuming manual measurement and documentation

• Challenges coordinating new designs with existing conditions

• Risk of inaccurate measurements during renovation or retrofit projects

• Difficulty maintaining reliable existing-condition information

VDEC converts complex scan data into structured BIM information, helping project teams work with a reliable digital representation of existing conditions.

02 — VDEC Solution

We transform point clouds, laser scans, LiDAR data, photographs, survey information, and existing drawings into intelligent BIM models tailored to project requirements.

Our Scan to BIM capabilities include:

• Point Cloud to BIM Modeling

• Laser Scan to BIM

• LiDAR to BIM

• Scan to Revit

• Existing Condition Modeling

• Architectural Scan to BIM

• Structural Scan to BIM

• MEPF Scan to BIM

• As-Built BIM Modeling

• Building Renovation & Retrofit Modeling

• Historical / Heritage Building Modeling

• Facility Documentation

• MEPF Existing Condition Modeling

• Model Updating from Scan Data

• LOD-Based Scan to BIM

• Scan-Based Clash & Coordination Support

We can develop models to the required LOD, accuracy, project standards, and level of information, depending on the intended use of the model.

03 — Deliverables

BIM Models

• Architectural Existing-Condition Models

• Structural Existing-Condition Models

• HVAC Models

• Electrical Models

• Plumbing Models

• Fire Protection Models

• Combined MEPF Models

• As-Built BIM Models

• LOD 200 / 300 / 350 / 400 / 500 Models

• Revit Native BIM Models

Documentation

• Existing Condition Plans

• Sections & Elevations

• Reflected Ceiling Plans

• MEPF Layouts

• Equipment Layouts

• Architectural Details

• Structural Details

• As-Built Drawings

• Area & Room Schedules

• Equipment Schedules

Scan & Coordination Outputs

• Point Cloud Processing Support

• Registered Point Cloud Data

• Scan-Based BIM Models

• Model-to-Point-Cloud Validation

• Existing vs. Proposed Coordination

• Clash Detection Reports

• Coordination Views

• Deviation / Verification Reports

04 — Our Process

01. Data Collection & Project Understanding

We review available laser scans, point clouds, LiDAR data, photographs, survey information, existing drawings, project requirements, LOD specifications, and BIM standards.

02. Point Cloud Processing

The available scan data is reviewed and organized to understand building geometry, structural elements, architectural components, and visible MEPF systems.

03. BIM Setup

We establish project coordinates, levels, grids, templates, families, naming conventions, modeling standards, and required LOD / accuracy parameters.

04. Scan to BIM Modeling

Our BIM engineers develop the model by interpreting the point-cloud data and accurately representing visible existing conditions.

05. Quality Control & Validation

The BIM model is checked against the available scan data to verify geometry, dimensions, locations, levels, and overall model accuracy.

06. Coordination & Review

Where required, the existing-condition BIM model is coordinated with proposed design models to identify conflicts and support renovation, retrofit, or construction planning.

07. Final Delivery

The approved BIM model and associated documentation are delivered in the required format and project environment.

05 — Software & Technology

Our Scan to BIM teams work with industry-standard BIM and point-cloud technologies, including:

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

We can also work with a range of point-cloud, LiDAR, laser scanning, and survey data formats, depending on project requirements.

06 — Benefits

Accurate Existing-Condition Information

Create a reliable digital representation of the existing building based on available scan data.

Reduce Site Measurement

Minimize repetitive manual measurements and improve access to existing-condition information digitally.

Better Renovation & Retrofit Planning

Understand existing building geometry and systems before developing new designs.

Improved Design Coordination

Coordinate proposed designs against existing conditions and identify potential conflicts earlier.

Reduced Construction Risk

Minimize surprises caused by discrepancies between existing drawings and actual site conditions.

Faster Design Development

Provide design teams with structured BIM information that can be used as a foundation for renovation and redevelopment.

Centralized Digital Information

Bring architectural, structural, and MEPF existing-condition information into a coordinated BIM environment.

Long-Term Asset Value

Create a digital record that can support future modifications, maintenance, facility management, and asset planning.

07 — Example Project

Scan to BIM for Existing Commercial Building Renovation

Project Type: Commercial Building Renovation / Retrofit
Scope: Laser Scan to BIM + Architectural & MEPF Modeling
Input: Point Cloud / Laser Scan Data
Deliverables: Revit BIM Model + Existing Condition Documentation
LOD: 350

VDEC Approach

VDEC received laser scan and point-cloud data of an existing commercial building where the available drawings did not fully represent the current site conditions.

Our team processed the scan information and developed coordinated Architectural, Structural, and MEPF BIM modelsrepresenting the existing building.

The models were validated against the available scan data and prepared as a reliable digital foundation for the proposed renovation and retrofit design.

Outcome

The client received a structured and accurate existing-condition BIM model, helping the design and construction teams better understand the building, coordinate proposed modifications, and reduce uncertainty during project planning.

08 — Turn Existing Conditions into Digital Intelligence

Your building already contains valuable information. Scan to BIM transforms that physical reality into a structured digital asset.

Whether you are planning a renovation, retrofit, refurbishment, extension, facility upgrade, or as-built documentation, VDEC can convert your scan data into an accurate and usable BIM environment.