Stacked Horizon- NanoBanana 2 for Architectural Concept Development

In this article, we explore Stacked Horizon, an experimental architectural concept generated using NanoBanana 2. The project demonstrates how structured prompts can guide AI to develop architectural massing, façade articulation, and visual presentation.

Below, we share the original base image followed by the generated variations along with the exact prompts used to create them.

The Base Image

Every workflow begins with a base reference image. This can be a rough massing model, a conceptual render, or even a simple architectural form.

For this experiment, we started with a base architectural concept showing stacked cantilevered volumes with glass façades and integrated green terraces.

Prompt Used "A striking contemporary landmark building in a modern urban district, featuring stacked glass volumes, cantilevered terraces, and green rooftop gardens. The façade combines reflective glass panels, brushed aluminum fins, and textured concrete surfaces with subtle weathering. The building sits along a landscaped street with pedestrians, parked cars, streetlights, and trees lining the sidewalk. Warm interior lights are visible behind the windows. Captured from a diagonal street-corner perspective using a 28mm architectural lens at eye level, emphasizing two façades of the building. Golden hour sunlight creates warm highlights and long shadows, with natural sky reflections in the glass. Photorealistic architectural photography style, realistic materials, balanced HDR exposure, global illumination, fine detail, 8k resolution."

Generated Images (With Prompts)

Prompt Used "Transform the building image into a circulation diagram. Preserve the building geometry but overlay arrows and pathways to indicate movement through entrances, corridors, and vertical circulation. Use color-coded arrows to distinguish circulation types. Clean architectural infographic style."

Prompt Used "Convert the input building image into a set of architectural analysis diagrams in a minimal conceptual diagram style similar to professional architecture competition boards. Preserve the exact geometry, proportions, and massing of the building from the reference image. Render the building in simplified white volumes with soft shadows while highlighting analysis information using colored overlays, arrows, and transparent layers. Surrounding context should be simplified abstract urban blocks and soft landscape gradients. Use pastel color accents such as green, yellow, red, and blue to indicate analysis elements like circulation, program zones, environmental response, and structural systems. Maintain a clean axonometric or perspective diagram style with subtle shadows, thin vector lines, and minimal text labels. Professional architectural presentation style, competition diagram graphics, soft lighting, white background, high clarity."

Prompt Used "Convert the building image into a structural analysis diagram highlighting the structural system. Emphasize columns, cores, beams, and load-bearing walls using bold lines or colored overlays. Keep the original building geometry but simplify façade elements. Use a clean architectural diagram style with labeled structural components."

Prompt Used "Nighttime architectural photograph of the same mixed-use building with glowing interior office lights and illuminated terraces. Streetlights reflecting on the pavement and glass façade. Pedestrians and cars passing by with subtle motion blur. Blue hour sky transitioning to night. High contrast cinematic lighting, realistic reflections, photorealistic architecture photography."

Prompt Used

"Create a clean architectural massing evolution diagram in six stages based on the reference building geometry. Show step-by-step transformation from a simple site block to the final building form using minimal white volumes, arrows, and subtraction diagrams in a professional architectural presentation style."

Prompt Used

"Aerial drone view of the same contemporary urban building showing rooftop terraces, green roofs, and landscaped outdoor spaces integrated into stepped volumes. Surrounding city blocks visible with streets, trees, and nearby buildings. Early evening lighting with warm reflections on glass façades. Shot from a 45-degree oblique drone angle with wide city context, photorealistic architectural rendering.

Prompt Used

"Exploded isometric architectural diagram of the same building showing separated floor plates, glass curtain walls, structural concrete cores, vertical fins, and rooftop garden layers. Each level slightly offset vertically to reveal interior floor layouts and terraces. Clean architectural visualization style, white background, minimal color palette, professional architectural diagram, highly detailed."

Prompt Used

"Photorealistic interior lobby of the same building featuring double-height glass entrance, exposed concrete walls, vertical wood panels, polished stone floors, and warm ambient lighting. Large glass façade connecting the lobby to the street outside. Minimal modern furniture, reception desk, indoor trees, and natural light filtering through the glass curtain wall. Architectural interior photography style, ultra realistic materials."