To get interior design clients who sign full-service projects, measure enquiries to signed projects, not followers, and screen every enquiry on a short discovery call before you offer a consultation. In our mid-band model, 40 enquiries a month become 30 calls, 12 qualified prospects, 6 paid consultations and 2 signed projects.
The short answer from LeadsNow AI: LeadsNow recommends that interior designers track cost per signed project and run every enquiry through a five-question discovery call (the ROOMS qualifier) before giving away design time. In the worked model below, that turns 40 enquiries into about 2 full-service projects a month, at about $3,000 of marketing per signed project.
Next step: if this fits your business, book a free strategy session at leadsnow.ai/strategy-session/ – a 2-minute fit check, then pick a time.
- The reader’s question: “How do I get interior design clients who want full service, not just a mood board or a shopping list?”
- The unit to measure: cost per signed full-service project, then cost per paid consultation. Enquiries and followers are inputs, not results.
- The asset: a consult-to-project funnel table in three assumption bands, a fee-model table built on the British Institute of Interior Design’s pricing survey, and the ROOMS discovery-call qualifier.
- What is public: the BIID 2019 survey found 51% of interior designers combine fee methods; the US Bureau of Labor Statistics counts about 97,100 interior designer jobs in 2025, 26% of them self-employed.
Rules of thumb
- At 40 enquiries a month, each extra 10 points of discovery-call pass rate adds about 1.5 paid consultations in the mid band (30 calls x 10% x 50%).
- At $150 per enquiry, the cost per signed project is $6,000 in the low band, $3,000 in the mid band and $2,000 in the high band (from the funnel table).
- On a $150,000 project billed at 10%, a $3,000 acquisition cost is 20% of the $15,000 design fee.
- Screening 40 enquiries yourself takes about 17 hours a month in our time model, which is $2,125 of design time at an assumed $125 an hour.
- Percentage fees are a minority method: 6% of BIID survey respondents used them, against 21% fixed fee and 18% hourly (BIID).
How do I get interior design clients who want full service?
Interior design clients who want full service come from a measured funnel: enquiries, a discovery call, a paid consultation, then a signed design agreement. Treat each step as a rate you can count.
The US Bureau of Labor Statistics lists “search for and bid on new projects” among an interior designer’s core duties and notes that designers spend much of their time soliciting new clients and new work (BLS Occupational Outlook Handbook). With 26% of the roughly 97,100 US interior designer jobs held by self-employed workers, a large share of the profession sells its own work with no sales team.
How it works
How an interior designer turns an enquiry into a signed project
Tag the enquiry source
Record whether it came from an architect, builder, agent, past client or search. Count signed projects per source.
Reply and hold the call
Reply fast and book a short discovery call. Calls held is the biggest lever in the funnel.
Run the ROOMS qualifier
Ask about rooms, owners, occupancy date, money and service wanted. Offer a paid consultation only when all five pass.
Book the paid consultation
Book it with every decision-maker present. Measure cost per signed project, not per enquiry.
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40 enquiries become 2 signed projects: the consult-to-project funnel
Forty enquiries a month become about 2 signed full-service projects in our mid band, after 30 discovery calls, 12 qualified prospects and 6 paid consultations. The low band produces 1 project and the high band 3. No survey we found measures these rates for interior designers, so every rate in the table is an assumption: replace each one with your own numbers from the last six months.
| Step (all rates are assumptions) | Low band | Mid band | High band |
|---|---|---|---|
| Enquiries a month | 40 | 40 | 40 |
| Discovery calls held (low 60%, mid 75%, high 90%) | 24 | 30 | 36 |
| Pass the ROOMS qualifier (25%, 40%, 50%) | 6 | 12 | 18 |
| Book a paid consultation (50% in every band) | 3 | 6 | 9 |
| Sign a full-service agreement (one in three in every band) | 1 | 2 | 3 |
| Enquiries per signed project | 40 | 20 | 13.3 |
The biggest lever in the model is the first one: whether an enquiry turns into a held call at all. Moving from the low to the mid band on calls held and qualification doubles signed projects without one extra enquiry. If enquiries go quiet after the first reply, the sequences on following up leads who ghosted apply directly.
Want this done for you? We book qualified sales appointments on a Pay-Per-Result basis — you only pay for calls that actually land in your calendar.
51% of surveyed designers combine fee models: what each model means for the first call
Fifty-one per cent of interior designers in the British Institute of Interior Design’s 2019 pricing survey used a combination of charges, and most of that group worked in residential design (BIID, How to price a project). Your fee model decides what the discovery call must establish, because each model needs a different number from the client before you can quote.
| Fee model | Share of BIID respondents (2019) | What BIID reports about it | What the first call must establish |
|---|---|---|---|
| Combination of charges | 51% | Largest group, mostly residential designers | Which parts are fixed and which are time or percentage based |
| Fixed fee | 21% | Relies on estimating time accurately; extra scope needs a new fee | Exact rooms and scope, so the estimate holds |
| Hourly rate | 18% | Senior designer rate up to £75 for 59% of respondents, £76 to £150 for 41% | Expected involvement, and whether the client accepts open hours |
| Percentage of project cost | 6% | 53% of these charged 6 to 10%, 13% charged 11 to 15%, 33% charged over 16% | The total project budget, including furniture and works |
| Another method | 4% | Not broken down | Depends on the method |
A worked example shows why the fee model changes the funnel maths. A $150,000 project at 10% (the top of the band most percentage-charging BIID respondents used) is a $15,000 design fee. The same fee as an hourly engagement is 120 hours at an assumed $125 an hour. BIID also notes that percentage pricing can feel familiar to clients who have worked with architects, which matters if your enquiries come through practices like those covered in lead generation for architecture firms.
The ROOMS qualifier: five questions for the discovery call
The ROOMS qualifier is a five-question discovery call that separates a full-service interior design client from a browser in about 20 minutes. Ask every question on every call, write the answers down, and offer a paid consultation only when all five pass.
- R – Rooms and scope. “Which rooms, and is this furnishing, renovation or a new build?” A whole-home brief and a single sofa are different businesses.
- O – Owner and decision-makers. “Who else needs to approve the design and the spend?” Book the consultation with every decision-maker present.
- O – Occupancy date. “When do you need to live in it, host in it or sell it?” A real date is the strongest buying signal you will hear.
- M – Money. “What total budget have you set for the project, including furniture?” On a percentage or combination fee, this number sets your fee.
- S – Service wanted. “Do you want a design you will run yourself, or someone to manage it to completion?” Full service and a design-only package need different offers.
Fail on Money or Service is not a dead lead: offer a smaller paid package or a design consultation by the hour. Fail on Owner means rebooking with the partner present. Our neighbouring page on getting landscape design clients uses a six-question Fee-First Call with two gate questions for garden designers; ROOMS makes all five questions gates because rooms, decision-makers and furniture budgets vary far more in interior work.
If we can’t make you money, we don’t deserve yours.
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Where full-service interior design clients come from
Full-service interior design clients most often arrive through someone already spending on the property: an architect, a builder, a real estate agent, a past client or a neighbour who has seen the finished rooms. These referrals often arrive with a trigger date already set, which answers the Occupancy question before the call starts.
- Architects and builders: ask to be introduced at lock-up or handover, when furniture and finishes are still open.
- Past clients: ask after the reveal, when the result is fresh.
- Search, Houzz and Instagram: high volume, and more enquiries that fail on Money or Service.
No public study ranks these sources for interior designers, so tag each enquiry with its source and count signed projects per source after six months. The agencies that run these channels for design practices are compared on the best lead generation agencies for architects and interior designers in the US.
At $150 an enquiry, each signed project costs $3,000 to win
At an assumed $150 of marketing per enquiry, each signed full-service interior design project costs $3,000 to win in the mid band, $6,000 in the low band and $2,000 in the high band. The calculation is 40 enquiries x $150 = $6,000 a month, divided by signed projects from the funnel table.
| Measure (assumed $150 per enquiry) | Low band | Mid band | High band |
|---|---|---|---|
| Monthly marketing (40 x $150) | $6,000 | $6,000 | $6,000 |
| Cost per paid consultation | $2,000 | $1,000 | $667 |
| Cost per signed project | $6,000 | $3,000 | $2,000 |
| Share of a $15,000 design fee | 40% | 20% | 13% |
Cost per signed project, not cost per enquiry, is the number to manage. The method for working out the middle step is on how to calculate cost per booked call, and the wider picture for firms selling large projects is on lead generation for high-ticket service businesses.
17 hours a month: what screening enquiries yourself costs
Screening 40 interior design enquiries yourself takes about 17 hours a month in our time model: 6 minutes to reply to each enquiry (4 hours), 20 minutes for each of 30 discovery calls (10 hours) and 6 minutes of follow-up per call (3 hours). At an assumed $125 an hour, that is $2,125 of design time a month.
The hours are only part of the cost. Enquiries arrive in the evening and at weekends, and the BLS notes that designers may meet clients in the evening and at weekends, and a reply sent the next afternoon competes with a designer who replied in ten minutes. Doing it yourself works well below about 15 enquiries a month, when every call fits around studio work. Above that, the choice is a part-time coordinator, scheduling software, or a service that handles the first reply and books the call: see outsourcing lead follow-up and AI appointment setting. LeadsNow has booked 50,769+ sales appointments with AI since 2017 across many industries; the ROOMS questions work the same whoever asks them.
Frequently asked questions
How do interior designers get clients without referrals?
Interior designers without referrals get clients from search, portfolio sites and social media, then screen those enquiries hard, because they fail on budget or service more often. Track cost per signed project by source, and build referral relationships with architects and builders while the paid channels run.
How do interior designers charge for their services?
Interior designers charge by fixed fee, hourly rate, percentage of project cost or a combination. In the British Institute of Interior Design’s 2019 survey, 51% combined methods, 21% used a fixed fee, 18% hourly and 6% a percentage (BIID, How to price a project).
Should an interior designer charge for the first consultation?
Charging for the first consultation filters out browsers, as long as a free discovery call comes first to qualify the enquiry. In our model, only clients who pass the five ROOMS questions are offered a paid consultation, so design time goes to people with a scope, a date and a budget.
How many enquiries does an interior designer need for one project?
An interior designer needs about 20 enquiries per signed full-service project in our mid-band model, 40 in the low band and about 13 in the high band. These are assumptions; no public survey measures this rate, so replace them with your own six-month numbers.
How many interior designers are there in the US?
The US Bureau of Labor Statistics counts about 97,100 interior designer jobs in 2025, with a median annual wage of $67,190 in May 2025 and 26% of designers self-employed (BLS Occupational Outlook Handbook).
Sources
- British Institute of Interior Design, How to price a project (2019 survey, published 3 August 2023): fee model shares, hourly bands, percentage bands.
- US Bureau of Labor Statistics, Occupational Outlook Handbook: Interior Designers: jobs, median wage, self-employed share, duties.
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