3D Scanning & Imaging Services

Accuracy and experience you can build on.

3D Scanning & Imaging Services

Accuracy and experience you can build on.

As one of the region’s earliest firms to develop and deploy 3D-scanning technologies with building information modeling (BIM) integration, DGT Associates provides the data necessary for understanding any project before the work begins.

By leveraging BIM-ready existing conditions survey data, we help our clients confidently and efficiently control costs, reduce change orders, and keep projects on track.

Why Use 3D Laser Scanning?

Control Costs

3D laser scanning from DGT Survey Group captures thousands of above-ground existing conditions data points within minutes, cutting field time costs from days to hours. With this technology, there’s no need to interrupt or delay normal construction activity.

Reduce Change Orders

3D laser scanning data is accurate and comprehensive — reducing costly change orders due to designs based on inaccurate or incomplete existing conditions data.

Stay on Track

No more project-stopping, time-wasting delays due to existing condition disputes. Accurate, readily accessible 3D laser scanning data provides quick, decisive resolution to disputed existing conditions.

Superior Technology

We use ground-based LiDAR, laser lines of light that measure ranges, to digitally capture geographical and spatial data. With laser scanning, single points defining object shapes are now replaced by thousands of grid points, gained within minutes. The high-density, data-rich images provide the level detail necessary for informed decisions. Additionally, remote, “hands-off” operation allows for mapping of elevated and hard-to-reach locations.

Our Services
  • 3D Laser Scanning (Ground-based LiDAR)
  • Building Existing Conditions Modeling
  • Building Façade Mapping
  • Building Information Modeling (BIM) Development
  • Revit Modeling
  • 2D CAD Drawings
  • BOMA Floor Area Measurement
  • Floor Flatness Surveys
  • Forensic Surveys
  • Historic Resource Documentation
  • Site Documentation
View Service Overview

Better Mapping with BIM

3D laser scanning data can be viewed as a 3D point cloud or exported to CAD format for design, dimensioning, and facade mapping. But, it can also be translated to BIM

Building Information Modeling or BIM is quickly becoming the standard design, construction and information technology for commercial, industrial, institutional and government building projects. 3D laser scanning is the ideal complement, providing BIM-ready data capture.

With our 3D representations, clients receive easily-integrated, ready-to-use data that streamlines the development process and communication between all development parties.

Common Survey Applications

  • Existing conditions surveys
  • Civil infrastructure
  • Building facade mapping
  • As-Built surveys
  • Highway or street mapping
  • Construction verification
  • Constructability review
  • BIM project support
  • Clash detection and avoidance
  • Historical and heritage preservation
  • Accident and crime scene forensic mapping
  • Monitoring construction progress
  • Utility infrastructure
  • Dispute resolution and litigation support
  • Plant or building retrofits
  • Interference detection and avoidance
  • 3D modeling & special effects
  • Virtual reality
  • Deformation monitoring
  • Bridge structures
  • Document street furniture
  • Utility infrastructure
  • Hazardous environments
  • Pre-fabrication for design
  • Construction tie-in locations
  • Building rehab surveys


Chiller Plant

When maintaining any type of industrial plant, a big challenge is understanding the existing conditions of their site. For a chiller plant in Salem, DGT performed 3D laser scanning and modeling for documentation of its MEP assets. With this data, the plant can now safely perform upgrades, renovations and other plant development.

Residential Architectural Planning

For a Massachusetts estate, DGT was contracted by the home architects to perform 3D scanning and imaging of the existing conditions of the house. DGT delivered point cloud data modeled in 3D, as well as elevation views and floor plans in order to begin design and planning for renovations.

Bay Path Technical

For the Bay Path Regional Vocational Technical High School in Charlton, DGT performed 3D interior surveys to aid planning and design of modernization. Our team delivered highly detailed and dimensionally accurate building existing condition models in Revit and AutoCad formats, depicting room shapes, as well as above-ceiling mechanical/ utility systems and structural obstructions.

Harvard Medical School

The Tosteson Medical Education Center at the historic Longwood Avenue Quadrangle dates back to the original construction of the Harvard campus. Drawing from a 1949 survey from William S. Crocker Engineering, a DGT legacy company, we updated façade maps using 3D laser scanning to support the current and ongoing modernization of the building.

McLauthlin Elevator Company

The McLauthlin Elevator Company Building in Boston’s North End is a historic cast- iron façade – one of the few remaining in Boston. For this 19th century architectural technology, DGT used 21st century 3D laser scanning survey technology to produce point cloud models that served as the basis for machine-controlled fabrication of replacement components in the on-going maintenance.

Prudential Arcade

The Prudential Center is an iconic Boston landmark that has undergone much transformation through the years, with layers of infrastructure dating back to the beginning of the 1900s. It was one of the largest, single site developments in the early sixties and transformed an old rail yard in to a multi-faceted icon location in the heart of Boston. DGT legacy documents date back to almost the begin of this landmark project, and our unique services are still required on a regular basis. In preparation for expansion, DGT was contracted to perform construction support with advanced 3D modeling, delivered in Revit, for design of the new Boylston Street Arcade.

MIT Stata Center

DGT Associates acted as construction survey consultant for this iconic academic complex.

Ship Deck Retrofit

DGT was hired to perform 3D laser scanning to capture existing conditions of a ship. The open deck and outfitting were scanned for primary purpose of developing conceptual layouts for a new cargo handling system.

Mobile 3D Mapping for Interstate Highways

DGT performed 3D laser scanning services for two bridges being reconstructed in Providence, Rhode Island. The LiDAR data was used to document the existing conditions and design of the new bridges. DGT used terrestrial and mobile LiDAR with GPS control with the least amount of impact on traffic and safety of the crew.

Boston City Hall

DGT was hired by an international 3D animation producer for a projection event onto the façade of Boston City Hall. 3D scanning was performed on one face of the structure and relative ground heights of the surrounding square. DGT created 3D AutoCAD model using the point cloud data for deliverable. This model was critical for our client for assessing locations of projector towers.

Contact us to see how DGT’s 3D laser scanning and BIM integration can support your project.