Supported versions: Autodesk Civil 3D 2025, 2026 and 2027
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Installation
To install the extension, sign in to Allsite.ai, open the profile dropdown in the top-right profile dropdown in the Allsite.ai web app, and select “Install Civil 3D Extension.” You must have a valid Allsite.ai account to download the installer.
Close Civil 3D if it is open, then run the downloaded installer and click Get started.
Next, read and accept the terms and conditions.
After selecting the acceptance checkbox, click Install. Setup works through a short checklist: it confirms Civil 3D is closed, installs the extension and applies the latest update.
When setup reports that the extension was installed successfully, click Close. The installer adds the Allsite.ai Civil 3D Extension to your Windows user account. The extension will be available the next time you open Civil 3D.
The next time you open Civil 3D, you will see a notification confirming the extension loaded successfully, and the Allsite.ai toolbar will be available.
When Civil 3D opens, Allsite.ai checks for newer versions. If a new major version is available, you will be prompted to install it. We recommend staying on the latest version.
Checking which version you are running
Level AI, Service AI and Layout Assist are all part of the Allsite.ai Civil 3D Extension, so the extension version is the version of Level AI you are running in Civil 3D. Quote it when you contact support. The Level AI design itself runs on Allsite.ai servers, so there is nothing separate to install or update.
About
On the Allsite.ai tab, in the Allsite.ai panel, click About.
The dialog shows the Installed version and the date it was installed. Click Check for updates to see whether a newer version is available.
App Manager
On the Add-ins tab, click App Manager and find Allsite.ai Civil 3D Extension in the list.
Windows
Open Control Panel > Add or Remove Programs and find Allsite.ai Civil 3D Extension.
DWGs that have been initialized with Allsite.ai can still be opened by users who do not have the Allsite.ai Civil 3D Extension installed. Grading parameters can also be edited because Allsite.ai stores data using native Civil 3D features, such as extended data.
Updating
Patch updates are applied automatically. If an automatic update cannot run, for example because Civil 3D is open, a prompt appears the next time Civil 3D opens. You can dismiss the prompt to snooze it for 3 days.
Uninstalling
To uninstall, open Windows Settings > Apps > Installed apps, search for “Allsite,” click the three-dot menu next to “Allsite.ai Civil 3D Extension,” and select Uninstall. This removes the extension, added line styles, and related registry items.
Troubleshooting
If you are having installation issues, restart your machine and make sure other programs, such as Bluebeam, are closed.