Where are We in the Design Process?

In this module, we’ll move our design proposals from Conceptual Design (LOD 100) to Schematic Design (LOD 200).
In upcoming modules, we’ll continue to develop our designs — moving into Detailed Design (LOD 300).

BIM Level of Development (LOD)

The Level of Development (LOD) specification is a framework that enables practitioners in the AEC Industry to specify and articulate, with a high level of clarity, the content and reliability of Building Information Models (BIMs) at various stages in the design and construction process.

The LOD Framework addresses various issues faced by AEC professionals by providing an industry-developed standard to describe the state of development of various systems within a BIM. This standard enables consistency in communication and execution by facilitating the detailed definition of BIM milestones and deliverables.

How Our Design Process Maps to LOD

Level of Development	Class Modulles	Software Tools	What’s Included in the Model
LOD 100 Conceptual Design	Module 2 Conceptual Design with Forma Site Design	Forma Site Design	A conceptual model where parameters like area, height, volume, location and orientation are defined.
L0D 200 Schematic Design	Module 3 Schematic Design with Forma Building Design	Forma Building Design	A general model where elements are modeled with approximate quantities, size, shape, location and orientation.
LOD 300 Detailed Design	Modules 4 Modeling Building Elements Shell & Core Module 5 Modeling Building Elements Interiors Documentation and Publishing Module 6 Structural Systems Module 7 Mechanical Systems Module 8 Power & Electrical Systems	Revit Forma Board	Accurate modeling where elements are defined with specific assemblies, precise quantity, size, shape, location and orientation.
LOD 350 Coordination	Module 9 3D Coordination	Revit Forma Model Coordination	More detail and elements that represent building elements interface with various building systems and other elements with clear graphics and written definitions.
LOD 400 Fabrication	Not covered in this class		Model elements are modeled as specific assemblies, with complete fabrication, assembly and detailed information in addition to precise quantity, size, shape, location and orientation.
LOD 500 As-Built	Not covered in this class		Elements are modeled as constructed assemblies for operations and maintenance. In addition to actual and accurate in size, shape, location, quantity and orientation.