Cost guide · California · Updated November 2026
What does a luxury interior designer cost in California?
By Olga Doykhen, founder and principal designer · Dana Point, Orange County
The short answer
Full-service design for a California home usually costs a separate design fee on top of the project budget. At our studio, full-home projects begin at a $100K project budget. Large projects above $1M are typically priced at 15–17% of the project cost, much like a contractor.
Key takeaways
- Two numbers matter: your project budget (materials, furniture, lighting, construction and installation) and the design fee, which is separate.
- Designers charge by the hour, a flat fee, the square foot or a percentage of the project. Published U.S. guides put hourly rates at roughly $100–$500 and percentage fees at 10–30%.
- California homes cost more, and so do the projects inside them. Orange County's median single-family price was $1.48M in September 2026.
- Any California job over $1,000, or one that needs a permit, must be done by a licensed contractor.
Project budget and design fee are two different numbers
Most confusion about design costs comes from mixing these up. Your project budget pays for everything that ends up in the home. The design fee pays for the expertise that decides what goes in, how it fits together, and how it gets built and installed.
Project budget
Materials, finishes, furniture, lighting, art, and any construction or installation. Our full-home projects begin at $100K, depending on scope.
Design fee
Planning, drawings, selections, coordination with your builder, and oversight through installation. Billed separately from the budget.
How interior designers charge
There is no single industry rate. These are the four common structures, with the ranges published in current national cost guides. Rates in coastal California tend to sit toward the upper end.
| Structure | How it works | Published U.S. range | Best for |
|---|---|---|---|
| Hourly | Billed for time spent, often with a minimum | About $100–$500 an hour | Consultations and small, defined questions |
| Flat fee | One agreed price for a defined scope | About $2,000–$15,000 for traditional room-level work | A single room or a clear design phase |
| Per square foot | Fee scales with the area being designed | About $5–$20+ per sq ft | Whole floors or homes with a known footprint |
| Percentage | A share of the total project cost | About 10–30% of the project | Large remodels and new builds |
Ranges from Decorilla's 2026 interior designer cost guide. For small, local jobs, Thumbtack reports typical totals of about $614–$2,791. See sources below.
Why design costs more in California
Higher home values bring larger rooms, more custom work and more expensive finishes. Here is where Southern California home prices stood in September 2026.
$1.48M
Orange County median
$1.05M
San Diego County median
$995K
Los Angeles County median
$900K
California median
Median prices of existing single-family homes, California Association of Realtors, September 2026.
Renovation budgets show the same spread. Houzz's 2026 study of more than 10,000 U.S. homeowners found a median renovation spend of $20,000 in 2025, while the top 10% spent $150,000 or more. Kitchens alone had a median of $24,000, and the top 10% reached $100,000. Only 8% of renovating homeowners hired an interior designer.
What our studio charges
We price clearly, by project size, so you know where you stand before we begin.
| Service | Starting investment | Typical fit |
|---|---|---|
| Private consultation | $1,500 for 90 minutes | Focused advice, or projects under $100K. Applied to your design fee if you sign a package within six months. |
| Foundations | From $25,000 | Design direction, plans, elevations and selections before construction |
| Signature | From $90,000 | Full-service design and project management, concept to installation |
| Projects under $1M | By square foot (industry guides average about $5–$20+ per sq ft) | Priced by square footage and scope |
| Projects above $1M | Typically 15–17% of project cost | New builds, estates and complex architectural interiors (Bespoke) |
A worked example
A family in Newport Coast plans a $1.2M whole-home renovation: new kitchen and baths, custom millwork, lighting and full furnishing.
- Project budget
- $1,200,000
- Design fee at 15–17%
- $180,000–$204,000
- Planned total
- $1,380,000–$1,404,000
Illustrative only. Your fee depends on scope, square footage and timeline, and is set in writing before work begins.
What the design fee covers
Included in Signature
- Space planning, floor plans and elevations
- Materials, lighting, fixtures and finishes
- Custom furniture, fabrics and color palette
- Procurement and vendor coordination
- Site visits and quality control
- Final styling, art and installation
Paid from your project budget
- Construction by your licensed contractor
- Permits and engineering, where required
- Furniture, lighting, art and materials
- Freight, delivery and installation
California rules that affect your budget
Licensed contractors above $1,000
Since January 1, 2025, unlicensed work is limited to jobs of $1,000 or less with no permit required. Anything larger must be done by a licensed contractor.
Plans for building departments
California defines a Certified Interior Designer as someone who prepares nonstructural, nonseismic plans for local building departments. Structural changes need an architect or engineer.
Questions
How much is an interior designer per hour in California?
National guides put hourly rates at about $100–$500. Coastal California firms tend toward the upper end. Our studio offers a 90-minute private consultation for $1,500.
Is the design fee part of my project budget?
No. The project budget covers materials, furniture, lighting, construction and installation. The design fee is separate.
What is the smallest project you take on?
Full-home projects begin at a $100K project budget, depending on scope. For smaller projects, the private consultation is a good place to start.
When does a percentage fee make sense?
For projects above $1M, we typically charge 15–17% of the project cost, similar to how many contractors price large work.
Which areas do you serve?
Orange County, Los Angeles County and San Diego County, including Newport Beach, Laguna Beach, Dana Point and Corona del Mar.
Get a clear number for your home
Schedule a free 15-minute call with our team to talk through your home, timing and budget.
Sources
- California Association of Realtors, September 2026 home sales and price report (released Oct 19, 2026)
- Houzz, 2026 U.S. Houzz & Home Renovation Trends Study (fielded Jan–Mar 2026)
- Contractors State License Board, AB 2622 minor work exemption
- California Business and Professions Code §5800
- Decorilla, interior designer cost guide (updated Nov 2, 2026)
- Thumbtack, interior designer cost (updated Oct 20, 2026)