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Architectural walkthrough videos: what they are, how long, and what to prepare

DARK · 2026-10-29

A walkthrough video moves the viewer through a project the way a visitor would experience it — arriving, entering, and seeing the rooms in sequence. A flythrough does the same from the air. Both sell what a set of still images can't: the flow between spaces and how light changes through them.

Architectural walkthrough videos: what they are, how long, and what to prepare

Walkthrough, flythrough or both?

A walkthrough is at eye level and works best for residences, lobbies and amenities. A flythrough shows the building in its setting, the site plan and the views — ideal for developments and masterplans. Launch films often open with a flythrough and continue inside with a walkthrough.

How long should it be?

For marketing, 60–90 seconds holds attention and covers the key spaces. Short 15–30 second cuts work for social media and ads. Longer, room-by-room versions suit sales galleries and buyer follow-ups.

How it's produced

We build the scene from your drawings or BIM model, light it, and plan the camera paths with you on a storyboard. Draft frames are approved before the final render. In Unreal Engine 5 the same scene can also become an interactive walkthrough or a VR experience.

What to prepare

Send what you have; gaps can be filled together.

  • Plans, sections, elevations or the 3D model
  • Material and finish schedule, furniture style references
  • The spaces and moments you want to show
  • Target length and formats (16:9, vertical)
  • Deadline and where the video will be used

Music, voice and text

Most marketing walkthroughs use licensed music, subtle sound design and short on-screen text. A voice-over can be added for presentations and sales galleries.

FAQ

Frequently asked questions

Can a walkthrough be made before construction?

Yes — that's the most common case. It's built from the 3D model of the design.

Can we update it when the design changes?

Yes. The scene is updated and the affected shots are re-rendered.

Can it become interactive?

Yes. The same Unreal Engine 5 scene can be delivered as a real-time walkthrough or VR experience.

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