BIM Level of Development- LOD

BIM services for all Level of Development - LOD 100 to 500

Level Of Development (LOD) defines the content (geometric info, structured data, linked documentation) and reliability (accuracy & quality) of BIM elements at different stages. Each LOD class defines its usability and limitations of the modeled elements.  LOD specifications can be used as attachments to contracts and also as an add-on to BIM execution plans.

For the BIM Level of Development (LOD 100 to LOD 500), United-BIM uses the reference and standards which are defined by the AIA and its practical interpretation from the BIM Forum. We develop purpose-built models for various stages of design, 3D visualization,  scheduling, estimations, fabrication & assembly and construction.

LOD 100 - Concept

The building 3D model is developed to represent the information on basic level. No geometric info in the model elements, only symbols with attached approximate info. Parameters like area, height, volume, location and orientation are defined.

LOD 200 - Schematic Design

LOD 300 - Design/Documentation

Accurate modeling, construction documents and shop drawings where elements are defined with specific assemblies, precise quantity, size, shape, location and orientation including non- geometric information. This level is most suitable for design intent to support processes like costing and bidding.

LOD 350 - Construction Documentation

It includes model detail and element that represent how building elements interface with various systems and other building elements with graphics and written definitions. This level defines proper cross trade coordination and will include connections and interfaces between disciplines.

LOD 400 - Fabrication & Assembly

Elements are modeled with complete fabrication, assembly, and detailing information in addition to precise quantity, size, shape, location and orientation. Non- geometric information to the model can also be attached.

LOD 500 - As-Built

Elements are modeled as constructed assemblies for maintenance and operations. In addition to actual and accurate in size, shape, location, quantity, and orientation, non-geometric information is attached to modeled elements.

Here is a walk-through of LOD stages of an ongoing hotel project –  a three story new construction on a two-acre land, 56,000 square foot, 95 rooms and expected to launch in July 2018.

Image of building conceptual model representing BIM LOD (Level of Development)- 100
LOD 100

Conceptual Information Model (Client Requirements, Conceptual Design)

Image of BIM LOD (Level of Development)- 200- Schematic Design
LOD 200

System/Component Oriented Modeling (Basic Design)

Image of BIM LOD (Level of Development)- 300- Detailed Design
LOD 300

System/Component Oriented Modeling (Detailed Design)

Image of BIM LOD (Level of Development)- 350/400-Construction Documents, Fabrication & Assembly
LOD 350/400

Element Oriented Modeling (Construction Documents, Fabrication & Assembly)

Image of BIM LOD (Level of Development)- 500- Facility Management
LOD 500

Element Oriented Modeling (As-built, Facility Management)

Image of Exterior rendering of Hotel with night visualization

Exterior Visualization and Walk-through