Show drawer

1 of 5


Next:Project Title


An improved construction process from 3D design work

Being able to see field conditions prior to starting construction has a real benefit in terms of reducing change orders. For that reason, this project was completed in BIM. First we created 3D drawings showing all of the existing conditions. Based on these drawings and the new architectural layout, we determined how to design the MEP systems. 

There were two aspects of design that were particularly influenced by the BIM drawings. The first was the placement of the electrical conduit on the upper floors.  With the 3D models, we were able to understand the electrical conduit layout on the upper floors and accommodate for it in our MEP design. The second aspect of design that was influenced by the BIM drawings was the placement of the ring duct. Had we not been able to see the ring duct and coordinate its layout with the terminal significant sprinkler piping modifications may have been needed.   

By using BIM models, we were able to better coordinate with the architect and other consultants during the design phase, when it was easier and less expensive to make modifications to our MEP/FP systems layout, and layout the terminal units (VAV and fan powered boxes) in relation to the other building elements (lights, conduit, sprinkler piping, etc.).

Project Type
Waltham, MA
ADD Inc.

Project Services


Using Autodesk AutoCAD MEP 2011, Autodesk Revit MEP 2012 and Autodesk Revit Architecture 2011, developed a 3D model showing how the MEP systems can be laid out in the space. We also created photorealistic renderings.

Electrical (Interiors)

Prepared electrical lighting drawings for fixture circuiting, specification and switching. Prepared power drawings with circuiting, panels, transformers, exit signs and emergency lighting.

Fire Protection (Interiors)

Prepared drawings showing distribution piping and locations of sprinkler heads, preaction and/or FM 200 systems.

Mechanical (Interiors)

Designed HVAC systems including transfer fans, environmental requirements, controls and management systems.

Plumbing (Interiors)

Designed plumbing fixture locations and rough-in requirements.