Prompting Guide
A great room design starts with a clear prompt. These patterns help the AI understand what you actually want — so your first render isn't a guess.
The quick version
Be concrete about style, colors, and materials. Mention what to keep from your existing room. Skip filler words like “nice” or “beautiful” — they don't change the output.
Pick one or two well-known styles. Roomellow recognizes Scandinavian, Mid-Century Modern, Modern Farmhouse, Japandi, Industrial, Boho, Coastal, Contemporary, and more.
Vague
Make my living room look nicer.
Specific
Modern Scandinavian living room with light oak, white walls, and a single mustard accent.
Combining two styles works well when they share a vocabulary (e.g., “Japandi”, “Mid-Century Boho”). Combining four does not — the AI averages them out and you lose the personality.
Different room types have different vital pieces. Naming them anchors the design.
Living room
“Sectional sofa, area rug, coffee table, floor lamp, soft side chair.”
Bedroom
“Upholstered bed frame, two nightstands, layered bedding, soft pendant lighting.”
Dining room
“Round dining table for 4, upholstered chairs, statement pendant overhead.”
Home office
“Wooden desk, ergonomic task chair, bookshelf, wall art with warm task lighting.”
Already generated a design and want to change one piece? Use the swap button on the product card in the sidebar. When prompting a swap, name the slot and the constraint.
Vague
Different couch.
Specific
Replace the cream sectional with a darker, smaller-scale 3-seater in caramel leather.
If you swap something but don't like the next pick either, swap again — credits don't decrement on swaps within the same render session.
By default, Roomellow replaces all furniture. If you want to keep something — maybe you just bought a couch — say so explicitly.
Vague
Modern living room.
Specific
Modern living room. Keep the existing dark blue couch — design around it.
Pick a style and color story. Trying to specify every item, every fabric, and every accent at once usually produces a muddled result. Generate, then swap.
“Maximalist Scandinavian Industrial” is three styles fighting each other. Pick one or a clean pairing.
“Cozy” or “luxurious” alone don't tell the AI anything specific. Add the materials or palette that make it cozy or luxurious for you.
“Warm” can mean anything from cream to terracotta. Name the actual colors: “cream walls, walnut wood, caramel leather.”
Upload your room and use one of the patterns above. You get 2 free renders.
Start designing