NATSPEC BIM Paper - NBP 1 - BIM and LOD

Oct 23, 2026

NATSPEC BIM Paper “BIM and LOD” introduces Level of Development (LOD) and explains its value in managing Building Information Modelling (BIM) workflows. It provides practical recommendations for implementing LOD on projects and step-by-step guidance for developing, applying, and interpreting LOD tables. The document also clarifies LOD concepts and notations, relationships to level of detail, and project coordination considerations.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages20

Reading Time50 min

AccessFree to download

INTRODUCTION

Purpose of this document

Key points about Level of Development (LOD)

OVERVIEW OF LEVEL OF DEVELOPMENT (LOD)

Model development and LOD

LOD Tables – choreographing model development

Related considerations

IMPLEMENTING LOD ON PROJECTS

Recommendations for implementing LOD

BiM Paper NBP 001 November 2013 BIM and LOD Building Information Modelling and Level of Development This NATSPEC BIM Paper provides an introduction to the concept of Level of Development (LOD) and its value in the management of the Building Information Modelling (BIM) process. It includes recommendations about implementing LOD on projects and guidance on developing and interpreting LOD Tables. NATSPEC BIM Paper BIM and LOD NATSPEC BIM Paper NBP 001 BIM and LOD – Building Information Modelling and Level of Development First published 2013 Publisher: Construction Information Systems Limited ABN 20 117 574 606 Acknowledgements A draft of NATSPEC BIM Paper NBP 001: BIM and LOD was widely distributed during the development phase. NATSPEC acknowledges the contribution of comments and suggestions by the following organisations: Anthony McPhee Architects Department of Industry Hassell BGC Construction DWP Suters Morris Bray Martin Ollmann Copyright This Document is protected by Copyright © 2013. You may use this Document for your own purposes. You may distribute this Document to other persons provided that you attribute the Document as having been generated by NATSPEC and that the document is available free of charge at [www.natspec.com.au](www.natspec.com.au. Click on)[. Click on](www.natspec.com.au. Click on) the ‘NATSPEC BIM’ logo. Disclaimer The NATSPEC BIM Paper NBP 001: BIM and LOD is intended for use by professional personnel competent to evaluate the significance and limitations of its content and able to accept responsibility for the application of the material it contains. NATSPEC and its contributors hereby disclaim all warranties and conditions with regard to this information and related graphics, including all implied warranties, fitness for a particular purpose, workmanlike effort, title and non-infringement. In no event shall NATSPEC be liable for any direct, indirect, punitive, incidental, special, or consequential damages or damages for loss of profits, revenue, data, down time, or use, arising out of, or in any way connected with, the use of the Document or performance of any services, whether based on contract, tort, negligence, strict liability or otherwise. NATSPEC disclaims any responsibility to update any information, including with respect to any new legal, business, or technology developments. If you are dissatisfied with any portion of the Document, or with any of these terms of use, your sole and exclusive remedy is to discontinue using the Document. Comments NATSPEC welcomes comments or suggestions for improvements to its documents and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities. NATSPEC also encourages users to share their experiences of applying its documents on projects with us. Contact us via email at [bim@natspec.com.au](bim@natspec.com.au). Formatting conventions used in this document In addition to the text formatting conventions used for Section headings, Clause titles, etc. , other conventions are summarised below: | Text type | Example | Indicates | | --- | --- | --- | | Normal italicised text | NATSPEC National BIM Guide | The name of a specific document or standard. | | Grey bold text | Data Reuse | A cross reference to a Section, Clause, Table, Diagram , etc. that can be found in this document. | | Blue text | [www.natspec.com.au](www.natspec.com.au) | Hyperlink/web link | NATSPEC BIM Paper BIM and LOD Contents 1. INTRODUCTION............................................................................................................................. 3 1.1 Purpose of this document ....................................................................................................... 3 1.2 Key points about Level of Development (LOD) ....................................................................... 3 2 OVERVIEW OF LEVEL OF DEVELOPMENT (lod) .........................................

FAQs

What is Level of Development (LOD) and why is it used in BIM?

LOD defines the development level of model information. The document positions LOD as a way to manage and coordinate BIM delivery and expectations across the process.

How does the document recommend implementing LOD on projects?

It provides recommendations for applying LOD within project workflows, including how to plan model development and use LOD as a basis for managing information requirements.

What guidance is given for developing and interpreting LOD tables?

The paper explains how LOD tables help choreograph model development, including using LOD table templates and creating summary statements for authorized uses and coordination of model elements.

Oct 23, 2026

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