# Finch 101: Upload walls from Revit

In this tutorial, you’ll learn how to upload **walls** from Revit into Finch.

This workflow is ideal if you’re:

* Working with an **existing building** that already has cores and circulation defined
* At a stage in your project where **walls, elevators, and stairwells** are already modeled in Revit
* Looking to use Finch’s **generative tools** around existing geometry

{% embed url="<https://www.youtube.com/watch?v=LX72_ulRhAc>" %}

## 1. Make sure your conceptual mass is uploaded

Before uploading walls, you’ll need to have uploaded your **conceptual mass** from Revit to Finch.

> 🔗 See the previous tutorial: [*Upload Conceptual Mass, Grids, and Levels from Revit to Finch*](https://docs.finch3d.com/courses/finch-101/finch-101-upload-mass-from-revit)

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## 2. Prepare your walls in Revit

1. Open your Revit model and navigate to the level where you’ve drawn your walls — for example, **Level 0**.
2. Select the interior walls you want to upload.
   * These can include **corridors, lift cores, and stairwells**.

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## 3. Upload story walls to Finch

1. Open the **Finch plugin** in Revit.
2. Choose **Story Walls** instead of *Massing*.
3. Follow the on-screen instructions:
   * Confirm that you’ve selected the correct walls.
   * Click **Upload Story Walls**.

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## 4. Review your upload details

A confirmation window will appear showing:

* The **number of walls** being uploaded
* Any **height discrepancies** between Revit and Finch

> 💡 Because your conceptual mass was already uploaded with **mass floors**, Finch will automatically match your **story heights and levels** from Revit.

Click **Upload Story Walls** to finalize the upload.

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## 5. Verify your walls in Finch

1. Jump into Finch and open the variant you uploaded to.
2. Wait for the sync to complete.
3. You’ll see your **walls** correctly positioned inside your Finch model.

Now you can:

* Assign **programs** and **circulation spaces**
* Define **space types** like elevators and stairwells
* Start **generating unit mixes** around your existing walls