AI Prompts for Interior Design: Room-by-Room Guide

Designing a home room by room is how the work actually gets done -- not in sweeping "whole house" gestures, but in individual spaces with specific constraints. The living room has different needs than the kitchen, and a bedroom demands a different mood than a home office. AI tools understand that distinction if you prompt them correctly.

This guide gives you ready-to-use prompts for both planning (ChatGPT) and visualization (Midjourney) across every major room type. The planning prompts help you think through layouts, dimensions, and requirements. The visualization prompts generate photorealistic images of each space. Use them together: plan the room with ChatGPT, then see it with Midjourney.

How to Use This Guide

For each room, you'll find two types of prompts:

• Planning prompts (ChatGPT): These generate space programs, layout recommendations, material selections, and technical requirements. They're for thinking and decision-making.
• Visualization prompts (Midjourney): These produce photorealistic interior images. Copy them into Midjourney with the parameters included.

Customize the bracketed fields [like this] for your specific project. The prompts work as-is for general use, but adding your client's actual dimensions, preferences, and constraints makes results dramatically better.

Living Room

The living room sets the tone for the entire home. It's also where clients have the strongest opinions and vaguest language -- "I want it cozy but modern" means something different to everyone.

ChatGPT Planning Prompts

Layout and Furniture Arrangement

I'm designing a living room that is [dimensions, e.g., "5m x 7m"] with [window locations, e.g., "a large window on the south wall and a door to the garden on the east wall"]. The client wants seating for [number] people, a TV viewing area, and a reading corner. Suggest 3 furniture layout options with approximate furniture sizes. For each layout, explain the circulation path, the focal point, and any trade-offs. The style is [style, e.g., "mid-century modern"].

Material and Color Palette

Recommend a material and color palette for a [style, e.g., "warm contemporary"] living room in a [climate, e.g., "cold northern European climate"]. Include: flooring material and finish, wall treatment, ceiling treatment, primary upholstery fabric, accent materials (2-3), and a 5-color palette with hex codes. Explain why each material works for this climate and style. The room gets [natural light level, e.g., "limited north-facing natural light"].

Fireplace Design Options

I'm adding a fireplace to a [room size] living room. Compare three options: a traditional wood-burning fireplace with stone surround, a modern linear gas fireplace recessed into the wall, and a freestanding wood stove. For each, cover: space required, installation considerations, heat output, maintenance needs, cost range, and which interior styles it suits best.

Midjourney Visualization Prompts

Contemporary Living Room

A spacious contemporary living room with floor-to-ceiling windows overlooking a garden, warm oak engineered flooring, plaster walls in soft white, a large L-shaped sofa in charcoal linen, walnut coffee table, wool rug in cream and taupe, fireplace set into a stone feature wall, afternoon sunlight streaming in, architectural interior photography --ar 16:9 --v 6.1 --style raw --s 100 --no people

Cozy Scandinavian Living Room

A cozy Scandinavian living room with whitewashed wood plank floor, pale grey walls, a compact deep-seated sofa in oatmeal boucle fabric, sheepskin throw, stack of books on a round oak side table, pendant light in woven natural fiber, wood-burning stove in corner with stone hearth, soft overcast daylight from a single large window, hygge atmosphere, Kinfolk interior photography --ar 3:2 --v 6.1 --style raw --s 100

Bedroom

Bedrooms are about restfulness. The prompts focus on acoustics, lighting control, materiality, and the balance between storage and serenity.

ChatGPT Planning Prompts

Master Bedroom Layout

Design a master bedroom layout for a [dimensions] room with [constraints, e.g., "one window on the west wall, ensuite entrance on the north wall, walk-in closet entrance on the south wall"]. Must include: king-size bed (1.8m x 2m) with bedside tables, seating area, dressing zone, and a desk area if space permits. Prioritize the bed position for morning light avoidance and views. Provide 2 layout options with dimensions marked.

Lighting Design

Create a lighting plan for a master bedroom. Include: ambient lighting (type and placement), task lighting (reading lights, vanity area), accent lighting (artwork or architectural features), and mood lighting (dimmable options). Specify light color temperatures for each fixture type. The room should support three modes: morning routine (bright, energizing), evening reading (focused, warm), and pre-sleep (very dim, warm). No overhead fixture directly above the bed.

Storage Planning

Calculate the storage requirements for a master bedroom used by a couple. Include: hanging space (linear meters for long garments, short garments), shelving for folded items, drawer space, shoe storage, accessories (bags, belts, jewelry), and bedside storage. Based on these requirements, compare a built-in wardrobe system, a walk-in closet (if we have [available space]), and freestanding furniture. Which solution provides the most efficient use of space?

Midjourney Visualization Prompts

Serene Modern Bedroom

A serene modern bedroom with a low platform bed in dark walnut, white linen bedding, textured plaster wall behind the headboard in warm sand tone, built-in floating bedside shelves, floor-to-ceiling curtains in natural linen, polished concrete floor with a soft wool rug, single pendant light in brushed brass, gentle morning light through sheer curtains, quiet atmosphere, architectural interior photography --ar 3:2 --v 6.1 --style raw --s 100 --no people

Japandi Bedroom

A minimalist Japandi bedroom with tatami mat flooring, a low futon-style bed frame in light ash wood, organic cotton bedding in white and indigo, single ceramic vase with a dried branch on a low wooden shelf, shoji screen panel filtering soft diffused daylight, micro-cement walls in warm grey, ceiling with exposed timber rafters, contemplative atmosphere, Japanese interior photography --ar 4:5 --v 6.1 --style raw --s 125

Kitchen

Kitchens are the most technically demanding rooms. Prompts address the work triangle, storage calculations, material durability, and ventilation -- things AI visualization alone won't solve.

ChatGPT Planning Prompts

Kitchen Layout Analysis

I'm designing a kitchen in a [dimensions] space. The client wants: [layout type, e.g., "an island kitchen with breakfast bar seating for 3"]. Plumbing is on the [wall]. Analyze three layout options (L-shape with island, U-shape, galley with island) against these criteria: work triangle efficiency, storage capacity, counter workspace, social interaction with adjacent living space, and traffic flow. Recommend the best option and explain why.

Material Selection for High-Use Kitchen

Recommend materials for a family kitchen that gets heavy daily use. Cover: countertop (compare quartz, granite, porcelain slab, and butcher block), backsplash (compare ceramic tile, natural stone, glass, and stainless steel), flooring (compare porcelain tile, engineered hardwood, polished concrete, and vinyl), and cabinet finish (compare painted MDF, natural wood veneer, and laminate). For each material in each category, rate: durability, maintenance, cost per sq meter, heat resistance, and aesthetic versatility. Present as a table.

Kitchen Storage Optimization

Design a storage plan for a [dimensions] kitchen for a household of [number] people who [cooking habits, e.g., "cook daily and entertain monthly for groups of 8-10"]. Include: upper cabinet allocation (by contents: everyday dishes, glassware, pantry items), lower cabinet organization (pots, pans, appliances, cleaning supplies), island/peninsula storage, drawer breakdown (cutlery, utensils, linens, spices), and pantry requirements. Calculate total linear meters of storage needed and compare to available wall space.

Midjourney Visualization Prompts

Warm Contemporary Kitchen

A warm contemporary kitchen with dark green painted cabinetry, brass cup handles, white marble countertop with subtle grey veining, herringbone marble backsplash, open oak shelving displaying ceramics and cookbooks, large central island with waterfall edge, three rattan pendant lights over island, wide plank oak floor, morning light from a large window above the sink, architectural kitchen photography --ar 16:9 --v 6.1 --style raw --s 100 --no people, food

Industrial Kitchen

A professional-style industrial kitchen with stainless steel countertops and commercial range, exposed brick wall, concrete floor with radiant heating, open steel shelving with organized pots and pans, butcher block prep island on casters, vintage enamel pendant lights, subway tile backsplash in matte white, lived-in but organized atmosphere, food magazine editorial photography --ar 3:2 --v 6.1 --style raw --s 75

Bathroom

Bathrooms require waterproofing, ventilation, and accessibility thinking that pure visualization misses. The planning prompts cover these technical aspects alongside aesthetics.

ChatGPT Planning Prompts

Bathroom Layout with Accessibility

Design a bathroom layout for a [dimensions] room that meets universal design principles while looking stylish. Requirements: walk-in shower (no curb), toilet with adjacent grab bar provisions (blocking in walls even if bars aren't installed yet), vanity at two heights (standing use and wheelchair-accessible), and adequate turning radius. The aesthetic should be [style]. Provide a layout with dimensions and list the specific accessibility features included.

Wet Room Material Specification

Specify materials for a wet room bathroom in [style, e.g., "Mediterranean modern"]. For each surface, include: material name, finish, typical slab/tile size, color, slip rating (for floors), water absorption rate, and maintenance requirements. Cover: floor (main and shower zone), walls (wet zones and dry zones), vanity top, and shower niche. All materials must be suitable for constant water exposure. Include waterproofing membrane specification beneath finishes.

Midjourney Visualization Prompts

Spa-Like Master Bathroom

A luxurious spa-like master bathroom with large format porcelain floor tiles in warm grey, freestanding oval bathtub in matte white positioned below a skylight, double vanity in natural oak with undermount basins, frameless glass shower enclosure with rainfall showerhead, recessed niche with indirect LED lighting, live-edge wooden stool holding folded towels, steam visible in shower area, soft natural zenithal light, luxury bathroom photography --ar 3:2 --v 6.1 --style raw --s 125 --no people

Compact Guest Bathroom

A compact well-designed guest bathroom with micro-cement walls in pale pink, terrazzo floor tiles with warm aggregate, floating vanity in white oak with round ceramic basin, circular brass-framed mirror, wall-mounted toilet, walk-in shower with glass screen and brass fixtures, single wall sconce in frosted glass, small window with frosted glass, clean efficient design, architectural interior photography --ar 4:5 --v 6.1 --style raw --s 100

Home Office

Remote work made the home office a design priority. These prompts address acoustics, lighting for video calls, ergonomics, and the balance between productivity and residential warmth.

ChatGPT Planning Prompts

Home Office Ergonomic Layout

Design a home office in a [dimensions] room for a [profession, e.g., "architect who needs dual monitors and a drawing surface"]. Requirements: ergonomic desk setup (specify desk height, monitor distance, and chair requirements), natural light from [window position] without screen glare, video call background that looks professional, storage for [items], and a separate zone for [secondary activity, e.g., "physical model making"]. Include acoustic recommendations if the room shares a wall with [adjacent space, e.g., "the living room"].

Lighting for Video Calls and Drawing

Specify a lighting design for a home office used by a designer who does video calls daily and detailed drawing work. The room has [window orientation]. Cover: ambient lighting (type, color temperature, placement), task lighting for the desk (lux levels for detailed work), video call lighting (key light position to avoid harsh shadows on camera), and screen-side lighting to reduce eye strain. All fixtures should be dimmable. Budget: [range].

Midjourney Visualization Prompts

Architect's Home Office

A bright architect's home office with a large L-shaped oak desk, dual monitors on adjustable arms, architectural model on a side table, pin-up board covering one wall with sketches and material samples, bookshelves with architecture monographs, ergonomic task chair in black mesh, task lamp in brushed aluminum, large window with a garden view to the left, organized creative workspace atmosphere, WorkDesign magazine photography --ar 16:9 --v 6.1 --style raw --s 75 --no people

Refined Library Office

A refined home office styled as a small library, floor-to-ceiling built-in bookshelves in dark wood surrounding a compact desk, green leather desk chair, brass desk lamp, small window with wooden shutters, wool rug on dark oak floor, curated objects on shelves between books, warm incandescent light from table lamp and wall sconces, intellectual quiet atmosphere, interior design photography --ar 3:2 --v 6.1 --style raw --s 125

Children's Room

Children's rooms need to grow with the occupant. These prompts address adaptability, safety, and the balancing act between playfulness and longevity.

ChatGPT Planning Prompts

Adaptable Children's Room

Design a children's room in [dimensions] for a [age, e.g., "4-year-old growing into school age"]. The room should adapt from ages 4 through 12 without major renovation. Include: sleeping zone, play/activity zone, homework zone (future-proofed), and storage. Specify which elements are permanent (built-in), semi-permanent (furniture that can be repurposed), and temporary (items to be replaced as the child grows). Material choices should be durable, non-toxic, and easy to clean.

Midjourney Visualization Prompts

Playful Children's Bedroom

A bright children's bedroom with white walls and warm birch plywood built-in furniture, a loft bed with a reading nook underneath, pegboard wall for display and organization, low open shelving with woven baskets for toys, cotton rug in muted rainbow stripes, pendant light in the shape of a cloud, chalkboard-painted section of one wall, cheerful but calm atmosphere, warm daylight, architectural interior photography for kids spaces --ar 3:2 --v 6.1 --style raw --s 100 --no people

Dining Room

ChatGPT Planning Prompts

Dining Room Sizing and Layout

I need to design a dining area that seats [number] for daily meals and [number] for entertaining. The space is [dimensions] and [open to / separate from] the kitchen. Calculate: minimum table size for both scenarios (consider an extendable table), clearance around the table for seating and circulation (min 900mm to wall, 1200mm for a traffic path), lighting height above the table, and sideboard/storage placement. Recommend table shapes (round, rectangular, oval) with pros and cons for this specific room size.

Midjourney Visualization Prompts

Warm Dining Room

A warm contemporary dining room with a large solid walnut dining table seating 8, upholstered dining chairs in cream boucle, a trio of pendant lights in ribbed glass and brass hanging above the table at staggered heights, oak parquet floor, linen curtains framing tall windows with garden view, sideboard in matching walnut displaying ceramics, evening interior lighting with candles on the table, intimate dinner atmosphere, Dwell magazine interior photography --ar 16:9 --v 6.1 --style raw --s 125 --no people, food

Outdoor Living Space

ChatGPT Planning Prompts

Outdoor Room Design Brief

Design an outdoor living area in a [climate, e.g., "temperate maritime climate with mild summers and frequent rain"]. The space is [dimensions] and connects to [indoor space]. Requirements: covered dining area for [number], lounging area, and [optional: outdoor kitchen/BBQ zone]. Address: weather protection strategies (retractable vs. permanent cover), material selection for furniture and flooring that withstands [local weather conditions], lighting design for evening use, heating options for cooler months, and planting to provide privacy from neighbors. Budget: [range].

Midjourney Visualization Prompts

Mediterranean Terrace

A Mediterranean outdoor terrace with natural stone paving, built-in concrete bench seating with outdoor cushions in white and terracotta, pergola with woven reed canopy creating dappled shade, outdoor dining table in aged teak, olive tree in a large terracotta pot, bougainvillea climbing the wall, sea view in the background, warm golden afternoon light, Mediterranean lifestyle photography --ar 16:9 --v 6.1 --style raw --s 125 --no people

Tips for Room-Specific Prompts

A few principles make these prompts more effective regardless of room type:

Always state the room dimensions. AI tools don't know if your kitchen is 3x3 meters or 6x8 meters. Dimensions change everything -- layout feasibility, furniture scale, material proportions, and circulation.

Specify the light conditions. "North-facing with limited natural light" produces completely different recommendations than "south-facing, full sun." For Midjourney, light direction defines the mood more than any other variable.

Name the style precisely. "Modern" means nothing -- it's too broad. "Warm contemporary with Japanese influence" or "industrial with Scandinavian softness" gives both ChatGPT and Midjourney enough direction to produce coherent results.

Include the lifestyle. A kitchen for a family of five who cooks every night has different requirements than one for a couple who mostly orders delivery. Tell the AI who lives in the space.

For turning these AI-generated concepts into reality, ArchGee's interior design tool lets you upload photos of your existing rooms and generate AI redesigns with specific style directions. It's particularly useful for client presentations where you need to show "before and after" possibilities.

You can also explore interior design positions on ArchGee if you're looking to work at a firm that values AI-assisted design workflows.