Fixing a grey, overcast sky
You cannot choose the weather on shoot day. A heavy grey sky drains the warmth out of an exterior and makes a good facade look tired.
BeforeAfterExterior photos sell the first impression of a property, and the sky fills half the frame. When that sky is a flat, featureless grey, the whole image goes cold and low-contrast, and the building behind it looks smaller and duller than it is. There are two ways to deal with it, and they are not the same thing.
Lifting versus replacing
Lifting the sky means working with the grey you have: recovering the brightness the overcast light flattened, adding a little contrast and warmth so the clouds get some structure back and the facade separates from the background. Replacing the sky means cutting it out and dropping in a blue one from somewhere else. The first is a correction. The second is a new element, and that difference matters.
Why we lift rather than swap
A recovered overcast sky still tells the truth: this is the property, on a cloudy day, looking its best. A pasted blue sky tells a small lie, and buyers notice when the light on the building does not match the weather above it. A lifted sky is also more forgiving; there is no hard cut-out line around the roof and the trees to give the edit away.
The labelling question
Since August 2026 the line is clear in the EU. Technical corrections, brightness, contrast, colour and white balance, do not need a label. A full generative sky replacement is a substantial change to the image and, like virtual staging, belongs in the category that carries a visible mark. If you swap a sky, label it. If you lift the one you photographed, you are simply correcting the shot.
In practice
- Expose for the building, not the sky, so the facade never goes muddy.
- Recover brightness and add gentle contrast to bring cloud structure back.
- Warm the image slightly so it reads as inviting rather than cold.
- Keep it believable: a soft bright overcast beats a fake tropical blue.
The example on this page is exactly this kind of correction. The overcast sky is brighter and the facade is crisp, but it is still the same day and the same building. Nothing was pasted in.