Building Surveying

Precise 3D Surveying of Existing Buildings

Precise 3D building surveying using laser scanning creates a complete digital model of the existing building.

All relevant building structures are precisely captured in the process.

Typical results of a building survey include:

3D CAD models 3D BIM models 3D utility rooms 3D site models 2D floor plans, sections, and elevation views

This creates a reliable digital foundation for renovations, retrofits, and planning within the existing building stock.

Real-world geometry instead of idealized plans

Many older buildings differ from existing architectural plans. Crooked walls or irregular room layouts are common.

Thanks to a point cloud accurate to the millimeter, such deviations become clearly visible.

Among other things, the following are identified:

• crooked walls
• rooms with irregular layouts
• geometric deviations
• Differences from existing plans

This results in a realistic representation of the actual building stock.

Fast On-Site Surveying

Modern 3D laser scanners enable highly efficient building surveying.

Many buildings can be fully surveyed in a short amount of time.

Typical advantages include:

• rapid data collection
• short on-site work times
• Efficient scanning of large buildings
• ideal for occupied or in-use buildings

This results in a precise survey with minimal disruption to ongoing operations.

A Clear Planning Framework for All Construction Phases

The survey data from the 3D building survey is used to create digital planning documents that can be utilized in all phases of a construction project.

For example:

• Feasibility studies and project development
• Preliminary projects and variant studies
• Building permit applications and regulatory processes
• Bidding processes
• Construction planning

This creates a reliable digital foundation that supports the entire planning and construction process.

Teamwork in Building Surveying

Precise 3D building surveying is always a team effort. Especially with larger or more complex buildings, a well-coordinated surveying team ensures that all areas are fully and efficiently captured.

A strong surveying team handles tasks such as:

• careful planning of scan positions
• systematic documentation of all rooms and building areas
• efficient coordination of the survey on site
• ongoing monitoring of data quality during the survey
• ensuring that no areas or details are missing
• Structured organization of the entire survey

This coordinated approach allows a building to be surveyed quickly and completely. This creates a precise and reliable foundation for digital building documentation.