How Much Does Interior Design Cost in 2026?

The Full Spectrum of Interior Design Costs

Interior design costs range from free to six figures depending on the approach, scope, and professional you hire. Understanding the full spectrum helps you choose the right option for your budget and needs.

At the free end, AI interior design apps like Intero let you visualize room transformations at no cost. At the premium end, full-service interior designers charge $10,000 to $50,000+ per room for residential projects and significantly more for commercial spaces. Most homeowners fall somewhere in between.

DIY Design: $0 – $500

The lowest-cost approach is doing it yourself using free tools and resources. This includes AI room visualization apps (free), Pinterest for inspiration (free), paint samples ($5–15 each), and furniture arrangement experiments using blue tape on your floor (free). The total cost is essentially the price of materials you purchase based on your research.

The challenge with DIY is confidence. Without design training, many people second-guess decisions, make expensive mistakes (wrong paint color, furniture that does not fit), or settle for safe, uninspired choices. AI visualization tools significantly reduce this risk by letting you see results before committing.

AI Interior Design Tools: Free – $30/month

AI-powered apps like Intero represent the newest tier in the cost spectrum. Free tiers let you generate room redesigns across multiple styles. Premium tiers (typically $10–30/month) unlock higher resolution exports, additional generations, and advanced features.

The value proposition is speed and exploration. For the cost of a single paint sample, you can see your room in 30+ design styles and make informed decisions about direction before spending anything on materials or professional services.

Online Design Services: $300 – $2,000

Online interior design services like Havenly, Modsy (now closed), or Decorilla pair you with a remote designer who creates a custom room plan. Packages typically include a design concept, 3D rendering, shopping list, and floor plan. Per-room pricing ranges from $300 for basic consultations to $2,000 for comprehensive packages.

These services work well for people who want professional guidance but cannot afford in-person designers. The tradeoff is less personalized attention and longer timelines compared to in-person design.

Independent Interior Designers: $100 – $300/hour

Freelance and independent interior designers typically charge $100 to $300 per hour, or a flat fee of $1,500 to $5,000 per room for a complete design. This includes in-person consultations, custom design plans, sourcing, and project management for implementation.

The per-room cost depends heavily on your location (designers in New York and Los Angeles charge more than those in smaller markets), the designer's experience, and the project scope. Most designers require a minimum project size of $2,500 to $5,000.

Full-Service Design Firms: $5,000 – $50,000+

Established design firms with teams of designers, project managers, and trade relationships charge premium rates. Full-service typically means they handle everything from concept to installation, including managing contractors, ordering furniture, and styling the final room.

Pricing models vary: some charge a flat fee per room, others work on a percentage of total project cost (typically 15–25%), and many use a hybrid of hourly fees plus markup on furnishings. A full home redesign with a top-tier firm can easily exceed $100,000.

Cost by Room Type

Not all rooms cost the same to design. Kitchens and bathrooms are the most expensive because they involve hard finishes (tile, countertops, cabinetry) that require precision and professional installation. Living rooms and bedrooms are less expensive since they primarily involve furniture, paint, and soft furnishings.

Rough per-room estimates for professional design (excluding furnishings):

• Kitchen: $3,000 – $15,000
• Bathroom: $2,000 – $10,000
• Living room: $1,500 – $5,000
• Bedroom: $1,000 – $4,000
• Home office: $800 – $3,000

The Smart Approach: Combine AI and Professional Help

The most cost-effective strategy combines free AI visualization with targeted professional assistance. Use Intero to explore styles, narrow your direction, and build a visual brief. Then bring those AI visualizations to a designer or contractor as a clear reference for what you want. This eliminates expensive exploration hours and ensures you and your designer are aligned from the start.

Many people discover through AI visualization that their design needs are simpler than they assumed — sometimes a new paint color and rearranged furniture is enough, no designer required.