Replacing the sky in an exterior photo
Swapping a grey sky for a blue one is the most dramatic exterior edit there is. It is also the most tempting to overdo, and since August 2026 it comes with a labelling duty you cannot ignore.

BeforeAfterA sky replacement cuts out the existing sky and drops a new one behind the building. On a flat, overcast shot the effect is immediate: the facade separates from the background and the whole image feels warmer. Used with restraint it is a genuine improvement. Used carelessly it screams edited from across the room.
Replacing versus lifting
There are two ways to fix a grey sky, and they are not the same. Lifting means working with the sky you photographed, recovering brightness and contrast so the clouds get structure back. Replacing means substituting a different sky entirely. Lifting is a correction and needs no label. Replacing adds an element that was never there, and that difference decides both how you do it and how you disclose it.
Making a replacement believable
- Match the light: a blue sky demands sunlight on the facade, not overcast flatness.
- Keep the edges clean around the roofline, the chimney and any trees.
- Pick a sky that suits the season and the region, not a tropical postcard.
- Leave some cloud. A perfectly empty blue reads as fake faster than anything.
The labelling duty
A full sky replacement is a substantial, generated change to the image, so under the EU rules in force since August 2026 it belongs in the labelled category, alongside virtual staging. A short caption such as "sky edited" near the photo is all it takes. Skip it and a sunny sky over a building you photographed in the rain becomes a small deception rather than a nice touch.
When to lift instead
For most listings, lifting the real sky is the better call. It needs no label, it never gives itself away with a hard cut-out line, and it still tells the truth about the day. Save the full replacement for the cases where the sky is a hopeless flat white and the exterior genuinely carries the listing.
The example on this page is a lifted exterior, not a replacement: the same day and the same building, just brighter and clearer. It is the honest baseline against which any full swap should be judged.