The honest answer is that it depends, but not in a vague way. A few clear factors decide what a design costs and what the whole project will cost to build and furnish. Here is how to think about both before you talk to a studio.
Two budgets, not one
Every project has a design fee and a project budget. The design fee pays for the concept, the drawings and the supervision. The project budget pays for construction, materials, furniture and lighting. The second is always much larger, and good design is what keeps it under control.
What changes the design fee
The main factors are easy to list:
- The size of the space and the number of rooms
- The scope: concept only, full drawings, or drawings plus supervision
- How custom it is: built-in joinery, custom furniture, stone details
- Whether the layout changes or stays as it is
- How many options and rounds of revisions you want
How studios charge
Design studios usually charge a fixed fee for a defined scope, a fee per square foot, or an hourly rate for consultations and small jobs. A fixed fee for a clear scope is the easiest to plan around, so ask what is included and what counts as an extra.
What changes the construction budget
Moving walls, plumbing and electrical costs more than refinishing. Materials range widely: the same kitchen can be built with very different cabinetry, stone and appliances. In Los Angeles, permits, the age of the house and access to the site also matter.
How to get a reliable number
Complete working drawings are the best tool for an accurate price. When every contractor prices the same detailed package, you can compare bids honestly and avoid surprises later. A turnkey project goes further and gives you one contract for design and construction.
By Albert Galstyan, Creative Director, Futuris Architects · Updated 2026-11-06
