Guide

AI prompts to preview a home renovation before you spend anything

Published 18 October 2026

A tidy garden beside a house with a watering can on the lawn, and a printed photo and paint swatches on a garden table

Short answerUpload one photo of the room or exterior, tell the AI exactly what to change (colour, cabinets, plants) and exactly what to keep (the layout, the walls, the windows), and ask for one change at a time so you can compare options side by side.

Full collectionAI room makeover and interior design prompts18 prompts with examples, steps and fixes →

A kitchen remodel, a repainted exterior or a garden overhaul is expensive to get wrong, and a swatch card or a single tile sample rarely shows you what the whole space will actually look like. You can now get a realistic preview from a single photo of your own home, before you buy a single tin of paint.

This is a different job to redesigning one room indoors, which the room makeover guide already covers. This one is for the bigger, pricier jobs: the garden, the kitchen, the exterior, and where a new piece of art might actually go.

The one rule that matters most

Whatever you're previewing, the result only looks real if you tell the AI what must stay exactly as it is. Say that before you describe the change:

prompt — 3 blanks

Keep the [HOUSE SHAPE / ROOM LAYOUT / WINDOWS / BOUNDARY WALLS] exactly as they are in this photo. Change only [THE ONE THING].

[DESCRIBE THE CHANGE].

Same camera angle, realistic lighting and shadows, no other changes.

Models are far more likely to leave something alone when you name it directly than when you simply don't mention it. If the walls shift or a window moves position in the result, add it to the "keep exactly as they are" list and try again.

Preview a garden makeover

Upload a clear daytime photo of the garden, in a style you can describe simply:

prompt — 3 blanks

Redesign the garden in this photo in a [STYLE, e.g. tropical / cottage / modern minimal] style. Keep the house, the boundary walls and the overall layout exactly the same.

Add [FEATURES, e.g. a lawn, a seating area, flower beds, string lights], realistic plants that suit [YOUR CLIMATE], soft evening light, a natural finish. Same camera angle as the original.

This is the garden makeover prompt. It works well as a mood image to bring to an actual gardener or landscaper, not as a guarantee of the final result; real soil, light and budget will all shape what's possible.

Preview a kitchen remodel

Kitchens are one of the most expensive rooms to get wrong, which makes a preview especially worth doing before you commit to cabinets or a colour:

prompt — 4 blanks

Show this kitchen after a remodel in a [STYLE, e.g. modern farmhouse] style. Keep the room shape, windows, doors and layout exactly the same.

Update the cabinets to [COLOUR], the countertops to [MATERIAL], the backsplash to [TILE], and the lights and handles. Bright natural light, realistic materials and proportions, same camera angle.

The kitchen remodel prompt is worth running two or three times with different colours or materials, so you can line the results up side by side instead of deciding from memory.

Preview a repainted exterior

Paint looks different on a 2-inch swatch than it does across an entire wall in real daylight. A full-photo preview closes that gap, at least roughly:

prompt — 3 blanks

Repaint the exterior walls of this house in [COLOUR] with [TRIM COLOUR] trim and a [DOOR COLOUR] front door. Keep the building shape, roof, windows and garden exactly the same.

Match the lighting and shadows realistically, keep the existing wall textures, and show the paint colour as accurately as you can.

This is the exterior repaint prompt. Still test the real paint sample on an actual wall in daylight before you buy in bulk; screen colours and real paint under your specific light are never a perfect match.

Preview where a piece of art will actually hang

This one is smaller in cost but still useful, especially for an oversized print you can't easily return:

prompt — 3 blanks

Place my artwork (the first photo) as a framed print on the wall above the [SOFA / BED / DESK] in the room photo (the second photo). Keep the room exactly as it is.

Frame: [BLACK / WOOD / WHITE], size around [SIZE], correct perspective, matching light and shadow, realistic scale.

The wall art mockup prompt is worth running at two or three different sizes. A print that looks right in the preview at one size can look surprisingly small, or overwhelming, once it's actually framed and hung.

Bring the whole look together first

Before any of this, it can help to get all your ideas for colours, materials and furniture into one place, so you're choosing from a coherent set rather than picking separately and hoping they match:

prompt — 3 blanks

A neat interior design mood board for a [ROOM] in [STYLE, e.g. warm Japandi] style, laid out as a flat collage: colour swatches, fabric textures, wood samples, [FURNITURE PIECES], lighting, plants, and a small reference photo of the finished look. Soft light beige background, tidy grid, labelled swatches.

The mood board prompt is a useful first step before you run any of the room-specific previews above, and a good thing to bring to a designer or a shop.

A few honest limits

These are previews, not architectural plans. They won't catch plumbing, wiring or structural issues a real tradesperson would.
A low-light or blurry source photo will produce a vague, blurry preview. Start with a clear, well-lit shot taken straight on.
Change one thing per preview. Asking for a new colour, new cabinets and new flooring all at once makes it harder to judge whether you actually like any one of them.

Where to go from here

For the indoor equivalent of this guide, see the room makeover prompts. Browse the full room makeover and interior design prompts collection for more ready-made ideas, or use the prompt builder to adapt any of these to your own home.