1. Here's how

There are several ways of doing that.

Any combination of the methods below is possible.

2. Using the Layer Visibility Effect

2.1: Import the various building components (slabs, columns, roof, walls, windows etc) as separate objects in Lumion.

2.2: Then use the Align function to make sure they all share the same position. Click on the link below to see how:

Knowledge Base: How do you move one model to the position of another model?

2.3: Move the various building components to separate Layers. Click on the link below to see how:

Knowledge Base: How do Layers work?

2.4: Use the Layer Visibility Effect to cycle through the phases of the construction process. Click on the link below to see how:

Knowledge Base: How do Layers work?

3. Using the Sky Drop, Move and Advanced Move effects

3.1: Import the various building components (slabs, columns, roof, walls, windows etc) as separate objects in Lumion.

3.2: Use the Align function to make sure they all share the same position. Click on the link below to see how:

Knowledge Base: How do you move one model to the position of another model?

3.3: Then use the Sky Drop, Move and Advanced Move Effects to animate the phases of the construction process, either in individual Clips or with Entire Movie selected.

3.4: A particularly effective method is to animate the Clip Plane in the Advanced Move Effect:

4. Animating the construction process in a 3rd party application

4.1: Use construction animation plug-ins and/or MAXScripts in 3ds Max to animate the individual components of the building (slabs, columns, roof, walls, windows etc).

4.2: Export the scene to Lumion as an animated model. Click on the link below for more details:

Knowledge Base: How do you import animated objects in Lumion? 

See also:

Blog article: Tip: Construction Phasing in Lumion using Sky-Drop Effect (June 13 2016)

Blog article: Tip: Construction Phasing in Lumion - Animated Clip Plane (June 9 2016)