Unit types
Code, type, area
Each unit shows its code, type and area, coloured by type.
Free
Lotuz MassingMassing and apartment layout — free
Block out a building, split a typical floor into apartments and read planning figures right inside SketchUp. Free, no expiry.
Free, never expires. Create an account, then download the Lotuz installer.
Requires: SketchUp 2025+ · Windows
Typical floor plan
Apartments divided on the structural grid
Divide the typical floor into units by type, with the area of each unit, the corridor and the stair core.
Corridor
Draw the corridor
Click along the corridor centre line, each segment with its own width.
Apartments divided on the structural grid
A typical floor divided into apartments: unit code, type, area and the stair core
Stair core
Any shape
Two clicks make a rectangle, more points make a polygon, concave included.
Grid
Units on the module
A cell that misses the locked grid width shows as undetermined, not a type.
Unit types
Code, type, area
Each unit shows its code, type and area, coloured by type.
Corridor
Draw the corridor
Click along the corridor centre line, each segment with its own width.
Stair core
Any shape
Two clicks make a rectangle, more points make a polygon, concave included.
Grid
Units on the module
A cell that misses the locked grid width shows as undetermined, not a type.
Real captures
Shot from the live plugins
No mock marketing UI — real SketchUp / 3ds Max / Photoshop panels from Lotuz workflows.
Audience
Who it is for
Planning consultants and developers
Block out a high-rise quickly on a plot, then compare building density, floor-area ratio and gross floor area with the developer's ceilings. Any bar that goes over turns red.
People drafting apartment schemes
Divide the typical floor into units by type and target mix, drag the boundary between units to adjust, and see the unit count per floor at once.
People who report numbers for the whole project
One control panel gathers planning indicators, apartment mix, scale, parking and estimated economics, for the whole project, one plot or one tower.
Workflow
How you work — step by step
- 01
Set up the project
A project is a library of unit types plus settings, stored on the machine so you can reopen and reuse it on the next project. A .skp you send out still carries everything needed to open it.
- 02
Assign the plot, stamp the ceilings
Draw or paste three nested outlines from the planning map or CAD: plot boundary, podium setback line, tower setback line. Select the ground, then enter the plot code, density ceiling, floor-area-ratio ceiling and GFA ceiling.
- 03
Build the massing
The podium and basement build automatically from density, number of storeys and storey height. Draw a tower with two clicks along its centre line.
- 04
Shape it on the 2D outline
Drag a gable end to lengthen, drag the centre line to move the whole block, or type a number and press Enter. Edit on the block or right on the unrolled floor plan.
- 05
Divide the apartments
Draw the corridor and the stair core, lock the layout, then drag the boundaries between units: the neighbouring unit grows by the same amount, so the total never changes and nothing opens up or overflows.
- 06
Read the statistics
The control panel shows planning indicators against the ceilings, apartment mix, scale, parking and economics. The scan button measures open, overlapping and overflowing area.
Deep dive
Features in depth
▸
Indicators against the ceilings
Building density, floor-area ratio and gross floor area, each as a bar against the developer's ceiling. When one goes over, the bar turns red and says by how much.
▸
Unit types on the structural grid
Each type has a code, a locked width, a tolerance, a target share, an area and a colour. A cell that misses the locked width carries no type name; it shows as undetermined, in orange, until you assign one.
▸
Drag the boundary between two units
When one unit narrows, its neighbour grows by exactly the same amount. Ctrl + drag to bend a boundary, drag from the middle of a unit onto another to swap them. Widths snap to the nearest grid module.
▸
Corridors, stair cores, free-form units
Each corridor segment has its own width (1.00 to 2.00 m). A stair core is a rectangle or any polygon, concave ones included. L-shaped or special units can be drawn by hand.
▸
Floor plan check
A 25 cm grid scan measures open area, overlap and overflow past the boundary. Use the measured number instead of judging by eye.
▸
Scale and infrastructure
Population from a factor per unit type, the minimum number of lifts, and the required green area and playground area.
▸
Parking
The car and motorbike spaces required under QCVN 04:2021, compared with the basement area you have.
▸
Estimated economics
Investment and revenue estimated from the unit prices in the project file. The derived factors sit in the project file and can be edited there.
Specs
In numbers
- Price
- Free, never expires
- Statistics scope
- Whole project · one plot · one tower
- Storage
- Project file on the machine, and inside the .skp itself
- Parking
- QCVN 04:2021
- Floor plan check
- 25 cm grid: open · overlap · overflow
- SketchUp version
- SketchUp 2025 or newer
FAQ
Common questions
Does it cost anything?+
No. Lotuz Massing is free and never expires.
Does it draw the plot boundary for me?+
No. The plot boundary and setback lines come from your planning map or CAD: draw or paste three nested outlines. Real setbacks are rarely even, so the tool does not draw them for you.
Does rebuilding from scratch delete a hand-drawn tower?+
Yes. Rebuild from scratch deletes all massing of that plot, hand-drawn towers included. Press Lock plot once you like the scheme to prevent it.
Are there any limits?+
The whole tower shares one typical floor plan; there are no floor groups yet. Each plot currently supports at most two towers.
Free, never expires. Create an account, then download the Lotuz installer.
Guides from the Lotuz Community
Hands-on tutorials written by the Lotuz team for architects and visualizers — free to read, no account needed. (In Vietnamese.)
- SketchUp cho Kiến trúcGiáo trình SketchUp Lotuz — mục lục toàn tập
- Căn bản & Cài đặtBắt đầu ở đây — lộ trình học SketchUp cho kiến trúc
- Dựng hình & ModelingDựng hình trong SketchUp — chọn plugin theo đầu việc
- Dựng hình & ModelingCuric Studio — bộ plugin dựng hình cho kiến trúc sư
- Địa hình & Bề mặt hữu cơGeo Location & PlaceMaker — lấy địa hình, nhà, đường từ bản đồ
- Cảnh quan & ScatterCity Generator — dựng bối cảnh đô thị quanh công trình
- Địa hình & Bề mặt hữu cơĐịa hình và bề mặt hữu cơ trong SketchUp — chọn đúng công cụ
- Cảnh quan & ScatterCesium — lấy địa hình và bối cảnh thật theo toạ độ
Courses:SketchUpCorona · 3ds MaxD5 RenderBlenderBrowse the whole Community →
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