To quote for interior design services, pick one pricing model (flat fee, hourly, percentage of the project budget, or per square foot), build the number from a written scope, and state what is included, what is not, and how many revisions are covered. Send it with a deposit requirement and an expiry date. The model matters less than a quote the client can read in two minutes and cannot misread.
How do you price interior design services?
Start with the work, not the number. Before any model, you need to know the rooms or square footage, the level of service (concept only, full design, or design plus procurement and site visits), who supplies furniture and finishes, and how decisive the client is. Those answers decide the hours behind the price.
A short discovery call usually gets you all of it. Ask about budget range, timeline, who approves decisions, and what has already been bought or built. If the budget and the ambition do not match, say so now, before you spend an afternoon on a quote that will not convert.
What are the interior design pricing models?
Four models cover almost every residential and commercial quote.
| Model | How the quote is built | Best when | Watch out for |
|---|---|---|---|
| Flat fee | Estimate total hours and phases, then state one price for a defined scope | Scope is clear and the client wants certainty | Scope creep; you absorb every extra hour unless the quote limits it |
| Hourly | [hourly rate] multiplied by [hours], billed as worked | Scope is unclear, early consulting, or small advisory jobs | Clients fear an open-ended bill; you need an estimate range and a cap that triggers a check-in |
| Percentage of project budget | A set percent of the [project budget] | Large projects with procurement, where the budget is firm | The budget moves; low budgets can underpay the effort, and clients may suspect you push spending up |
| Per square foot | [square feet] multiplied by [rate per square foot] | Repeatable work such as similar units or standard room types | Square footage hides complexity; a small, intricate room can take more time than a large plain one |
Most studios settle on one default model and keep a second for edge cases. For example, a flat fee for the main design phases, plus hourly for anything outside the scope.
Worked example: flat fee
Build the fee from phases, not from a guess.
- List the phases: concept, design development, documentation, procurement support, site visits.
- Estimate hours per phase, for example [hours: concept] and [hours: development].
- Add the phase hours: [total hours] = sum of all phase hours.
- Multiply by your internal [hourly rate] to get the base: [base] = [total hours] x [hourly rate].
- Add a buffer for client decisions and coordination: [flat fee] = [base] + [buffer].
- Divide into milestones, such as [flat fee] split across signing, concept approval and documentation.
The client sees one price. You see the arithmetic behind it, which makes the next quote faster and shows you where past estimates ran short.
Worked example: hourly
- Set the [hourly rate] for the person doing the work. If different people work on the job, set a rate per role.
- Estimate a range, such as [hours: low] to [hours: high].
- Calculate the range: [low estimate] = [hourly rate] x [hours: low]; [high estimate] = [hourly rate] x [hours: high].
- Put the range in the quote with a rule: when billed time reaches [check-in hours], you pause and confirm before continuing.
- Invoice on a set schedule against logged time.
The check-in rule is what makes hourly work. Clients accept a range if they trust that nothing runs past it silently.
Worked example: percentage of project budget
- Confirm the [project budget] in writing, and state what it includes (furniture, labor, fees, contingency).
- Choose your percentage, [percent].
- Calculate: [fee] = [project budget] x [percent].
- Say what happens if the budget changes: [revised fee] = [revised budget] x [percent].
- Add a minimum fee so a small budget does not leave the job underpriced.
The key sentence is the one about budget changes. Without it, a budget that shrinks halfway through quietly cuts your pay for the same work.
Worked example: per square foot
- Measure or confirm [square feet], and say whether it covers all floors, only the rooms in scope, or usable area.
- Set the [rate per square foot] for the service level (concept only costs less than full design plus procurement).
- Calculate: [fee] = [square feet] x [rate per square foot].
- Add line items for known complexity, such as custom millwork or a kitchen, as [complexity add-on].
- Total: [quote total] = [fee] + [complexity add-on].
This model is quick to quote and easy for clients to compare, which is both its strength and its risk. Always add the complexity line so the simple formula does not flatten real differences between rooms.
What should an interior design quote include?
Whatever the model, the document should carry the same parts:
- Project summary in the client's own words
- A scope of work listing deliverables by phase
- Exclusions, stated plainly (for example, permit drawings, site supervision, or purchasing)
- The number of design revisions per phase, and the price of extra rounds (see revision rounds)
- The fee, payment schedule and deposit
- Timeline assumptions, including how fast the client must respond
- An expiry date for the quote
If the job needs more than a one-page quote, write a fuller proposal with the same structure plus process and approach. For a copy-and-paste starting point, use the interior design quote template and adjust each section to your model.
How do deposits work on a design quote?
A deposit is what turns a yes into a start date. State it in the quote as a share of the fee due on signing, and say that scheduling begins when it is paid. Send the deposit invoice the same day the client accepts, while the decision is fresh. For larger jobs, tie later payments to milestones rather than calendar dates, so payment follows delivered work.
How do you limit scope on an interior design project?
Scope limits protect your time without sounding defensive. Three habits help:
- Name what is out. Site supervision, custom drawings and sourcing beyond an agreed list are the usual leaks.
- Cap revisions. Include a stated number per phase and price the rest.
- Treat changes as new work. When the client asks for something outside the scope, write it down, price it, and get a yes before doing it.
Saying this up front feels awkward for about a minute. It saves far more awkward conversations later.
How should you follow up after sending a quote?
Most quotes go quiet, not no. Follow up on a schedule you set before sending: a short note two or three days later answering any question the quote may have raised, and another a week after that with a concrete next step, such as holding a start date. Keep each message to a few sentences and refer to something specific from the call. Log every sent quote with its date and value, so none depends on your memory during a busy week.
How do you keep quoting from eating your week?
Quoting is mostly repetition. Keep your phase hours, rates and exclusions in one place, reuse the same structure, and answer inquiries in a fixed block of time rather than all day. Sort inquiries first: a lead with a clear budget, location and timeline gets a quote; one with none gets two questions back. Review closed jobs against the original estimate and adjust your hours for next time.
How Viznerve handles this
Viznerve is an AI operator for creative studios, including interior design. It reads each inbound inquiry and sorts it as hot, warm, cold or not a fit using your studio's context, then drafts the reply or quote in your own voice. You approve and send; it never sends on its own by default. It also keeps follow-ups moving and can answer questions like which leads are hottest from your real data through Ask Nerve. It connects to Gmail, Google Calendar and Stripe, with Google Drive or Dropbox for project files. Start with the free trial: 150 credits for 14 days, no card. Try it on real inquiries.