How to install Revit Lookup

Post updated 28 September 2021 with the latest links

Revit Lookup is a free, open-source add-in for Revit, which you can use to explore the Revit API.

You will find it invaluable if you are using Dynamo or pyRevit, and also if you are using my Revit Add-in, PropertyWizard.

In this post, I am going to explain how to download and install Revit Lookup, and then in future posts I’ll explain how to get started with Revit Lookup, how to use it in Dynamo and pyRevit, and how to use Revit Lookup with PropertyWizard.

How to download Revit Lookup

The quickest way to get Revit Lookup for Revit 2017-2022 is to download and run this installer from Luiz Henrique’s GitHub:

It is referenced from Jeremy Tammick’s blog and GitHub, which is a strong endorsement:

Revit Lookup installer on Jeremy Tammick’s GitHub

The installer comes as a zip file. Unzip it to extract the exe installer, and then run the installer. When you restart Revit, you should find the Revit Lookup button on the Add-Ins tab of the ribbon:

Revit Lookup button

Once you have installed Revit Lookup, go to this post for details on how to get started, or carry on reading here for more background on Revit Lookup and how to install it for other versions of Revit.

Revit Lookup background

This section has more background on Revit Lookup, and details of alternative ways to download and install it.

Revit Lookup is an open source add-in for Revit, maintained by Jeremy Tammick of Autodesk, on GitHub:

Other ways to install Revit Lookup

Since Revit Lookup is open-source, you can download the source code from GitHub and compile it yourself.

There are also compiled builds available at Lookup Builds. These don’t come with an installer, so you have to install them manually.

The ‘Key’ column shows you which version of Revit the build applies to. Each build is stored as a compressed 7zip file, so you will need a copy of 7zip to unpack them. 

Contents of one Revit Lookup build, opened in 7zip

Within each build package there are three files:

  • RevitLookup.dll, which is the compiled code of the add-in
  • RevitLookup.addin, which is the ‘manifest’ file for the add-in
  • RevitLookup.pdb, which is a debug file

To install Revit Lookup, place the three files for each Revit version into the relevant Addins folder on your computer:


That’s all for this post: Next, you could have a look at the post on Getting Started in Revit Lookup, or on how to use Revit Lookup with PropertyWizard.

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