# house-design-draw-a-multi-floor-floor-plan

> Learn how to create floor plans, add multi-floor layouts, and design 3D architectural schemes with intuitive tools. Start planning your villa spaces today!

- **URL**: https://www.coohom.com/helpcenter/house-design-draw-a-multi-floor-floor-plan
- **Locale**: en_US
- **Updated**: 2026-08-05

## Content

This article explains how to quickly generate a floor plan from a blank canvas and further build multi-floor spaces to complete a basic multi-floor architectural structure scheme.

For Users
=========

All users

Entrance
========

Click **House Design** in the workspace to enter the villa design page.

![1. Interface/Functional Module: Homepage > Create new project
2. Annotation Target: The red arrow points to and highlights the "House Design" project type tab.
3. Purpose: Used to select the "House Design" mode to start creating a new architectural design project.](//qhstatic-sg-s3.coohom.com/image/png/1785318227741/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

LayoutDesign with AI Space Planner
==================================

1. Click **Build** --- **Generate Layout** --- **Space Planner** in the design tool to enter the space layout design page.

![1. Interface/function module: Build > Generate Layout
2. Annotation target: "Space planner" button (pointed to by a red arrow and highlighted with a red frame)
3. Function: Used to launch the space planning feature to generate building layouts automatically or semi-automatically.](//qhstatic-sg-s3.coohom.com/image/png/1785314784712/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

2. In the left panel, select the appropriate planar space type and drag it onto the design panel. You can resize the space by dragging the circle markers or modifying the side length values.

![**Module:** Space Planner > Room Layout Editor

**Annotations:**
1. **Red Arrow:** Points from the "Living room" tool in the Activity space panel to the corresponding room area on the canvas. This indicates the action of selecting or placing a "Living room" object into the floor plan.
2. **Red Box:** Highlights the dimension value (17144) on the top edge of the selected room. This is used to view or modify the specific length of the room wall.](//qhstatic-sg-s3.coohom.com/image/png/1785316433810/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

![**Module:** Space planner > Canvas Area

**Workflow Process:**
1. **Create Space:** Select the "Living room" item from the "Activity space" panel to draw a rectangular room area on the canvas.
2. **Adjust Dimensions:** Drag the boundary handles (blue dots) of the selected "Living room" area to resize the space, as indicated by the changing dimension values (e.g., width increasing to 17144).
3. **Access Object Tools:** Upon selecting the room, a floating toolbar appears above the object, providing quick access to the "Copy" and "Delete" buttons for object management.](//qhstatic-sg-s3.coohom.com/image/gif/1785316304673/6D78B8313F6A4CE3AFBD66C2C3D52BC7.gif)

* You can select multiple different spaces for layout placement and modify room sizes to meet various space requirements.

![界面名称：Space planner > 空间布局画布

操作流程描述：
1. **添加并调整空间**：在左侧“Living space”面板选择“Bathroom”并拖入画布，通过拖拽空间边缘的控制点调整其尺寸（如 1500x2700），使其与“Living room”相邻。
2. **空间管理**：选中空间后，可通过弹出的快捷菜单中的“Copy”或“Delete”按钮进行复制或删除操作。
3. **快速布局**：在左侧“Activity space”面板选择“Kitchen”，将其拖拽至“Living room”右侧，通过调整尺寸完成厨房区域的划分。

该流程用于在平面图中快速规划并精确定义不同功能房间的布局与尺寸。](//qhstatic-sg-s3.coohom.com/image/gif/1785316542542/348F2A57018302D92F2BE4C5126F9E4E.gif)

Add Multiple Floors
===================

1. After completing the layout, click **New Floor** in the lower left corner, select the specific requirements for the new floor, and then click **Confirm**.

![1. Interface module: Space planner > Floor management
2. Annotation targets:
① "New floor" button
② "Add floor/Add basement" selection panel (with "Copy from" dropdown menu)
③ "Confirm" button
3. Operation purpose: The user first clicks ① to create a new floor, selects adding a floor or basement in ② and specifies the copy source, then finally clicks ③ to confirm and complete the creation of the new floor.](//qhstatic-sg-s3.coohom.com/image/png/1785316674170/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

2. After creating a new floor, you can continue to modify the layout or click the space name to directly change the room type.

![**Module:** Space Planner > Floor Plan Editor

**Annotations:**
1. **Target:** "Dining room" room label dropdown.
**Action:** Click to open the room type selection menu.
2. **Target:** Room type selection dropdown list.
**Action:** Select a specific room category (e.g., Entrance, Activity space, Living space, Transportation) to redefine the function of the selected area.

**Workflow:** The user first clicks the room label (①) to trigger the dropdown menu, then selects a new room type from the list (②) to update the space designation.](//qhstatic-sg-s3.coohom.com/image/png/1785317583256/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

![Interface or feature module: Space planner > Space layout canvas

Operation process:
1. In the "Activity space" panel on the left, select the "Study" room type.
2. Click and drag on a blank area of the canvas to create and define the initial dimensions of the "Study" room.
3. Drag the control points on the edges of the room to adjust its width and height, aligning it with adjacent spaces.
4. After selecting the room, you can choose "Copy" or "Delete" from the pop-up quick menu to duplicate or delete the space.

Purpose: Used to quickly create, adjust dimensions, and manage functional rooms in the floor plan.](//qhstatic-sg-s3.coohom.com/image/gif/1785317511196/AD5404E82C1DEC1C8FF60866AA135C38.gif)

* If you need to create a height void effect, select **Floor Hole Digging** in the left panel and drag it to the area above the living room that requires the void.

![1. Interface or Functional Module Name: Space planner > Transportation panel
2. Precisely Pointed Objects: The "Floor hole digging" button highlighted in a red box, and the corresponding "Floor hole digging" area on the canvas pointed to by the arrow.
3. Function in the Workflow: Used to create or define the position and size of floor openings (such as stairwells, atriums, etc.) in the floor plan layout.](//qhstatic-sg-s3.coohom.com/image/png/1785316918315/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

Generate 3D Floor Plan
======================

1. After completing the layout design, click **Generate 3D Floor Plan** in the upper right corner.

![1. Interface/Functional module: Assemble your space > Top toolbar
2. Annotation target: "Generate 3D floor plan" button
3. Operation: Used to generate a 3D floor plan from the currently edited 2D layout.](//qhstatic-sg-s3.coohom.com/image/png/1785315430399/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

2. Once generated, you can view the architectural scheme effect. You can also change the floor name and floor height.

![1. Interface/Functional Module: 3D Modeling Editor > Floor Height Annotation
2. Annotation Target: Red-framed "Floor Height Value Area" (including 2F11: 4000 and 1F: 3000)
3. Function: Used to intuitively display and confirm the specific floor height values of different building floors (1F and 2F11).](//qhstatic-sg-s3.coohom.com/image/png/1785315234956/A8CEBABD0663ECBAEEE7516DF7A7D2B5.png)

![This operation process is located in the "Building Modeling > Floor Management" module, and is designed to demonstrate how to adjust the building floor height.

The specific steps are as follows:
1. In the 3D view interface, locate the floor height annotation area on the left side of the building.
2. Click and select the "Story height" numerical input box for the "2F" floor (shown as 3000 in the figure).
3. Change the value to "4000" and confirm.
4. At this point, the floor height in the "Floor" panel on the right will be updated synchronously to 4000, and the height of the second floor in the 3D model will increase in real time.](//qhstatic-sg-s3.coohom.com/image/gif/1785315253243/0993C9A0FBED820531981C214C739A18.gif)