AI Sky Expander for Buildings

How it works

1. 1

   Upload your two photos

   Drop your building photo into EditThisPic, then optionally click '+ Add reference photo' to upload a reference sky image. A reference sky gives you exact control over the cloud density and blue tone that fills the expanded area above the roof — useful when you want the sky to match a specific look or match other photos in a set. Without a reference, the AI continues the existing sky naturally upward. JPG, PNG, WebP up to 7MB.

   Expect: Simple sky extension above building: 20–30 seconds. Complex cloud pattern matching from reference: 30–40 seconds.
2. 2

   Describe the sky extension

   Tell the AI what to add: 'add more sky above the building extending upward, continuing the existing blue sky naturally with matching cloud patterns' or 'extend the sky above the building using the reference sky photo — add about 30% more height above the roofline.' Mention how much sky to add and whether to match the existing sky or the reference.

   Tip: For real estate photos, specifying 'about 30% more height above the roofline' gives a concrete target. For artistic crops, describe the ratio: 'equal sky and building height' or '60% sky, 40% building.'

   Copy one of these to get started:

   Add more sky above building — continue existing sky add more sky above the building, extending the frame upward by about 30%, continuing the existing blue sky naturally with matching cloud patterns and blue tone

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   Add sky from reference above the building add more sky above the building using the reference sky photo — extend the frame upward by 25-30%, blending the reference sky naturally with the existing sky at the roofline

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   Real estate listing — expand for landscape ratio extend the sky above the house to create a balanced landscape composition — add sky above the roofline so sky takes up about 40% of the total image height, matching the existing blue sky naturally

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   Add dramatic cloudy sky above building add more sky above the building — extend upward and add a dramatic blue sky with large cumulus clouds from the reference photo, seamlessly blending with the existing sky at the roofline

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   2 more prompts

   Expand sky for print crop expand the sky above the building to fill a 4:3 aspect ratio — add sky above the roofline continuing the golden-hour sky colors, matching the warm tones already in the photo

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   Church or monument — add sky for scale add more sky above the church/monument — extend the frame upward to add a large amount of sky, creating a sense of scale and grandeur, continuing the existing blue sky naturally

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3. 3

   Check roofline blending and sky continuity

   The key check is whether the added sky above the roofline blends seamlessly with the existing sky visible in the original photo. The clouds, blue tone, and atmospheric depth should look continuous — you shouldn't be able to tell where the original photo ended and the AI-added portion began.