Interior Designer Client Onboarding Checklist (2026)

An interior designer client onboarding checklist is the difference between a project that flows from concept to installation and one that stalls in week five because the site survey never happened, the HOA guidelines never arrived, or the client’s spouse has veto power that nobody mentioned in the discovery call. If you have ever specified a custom sofa that would not fit through the front door, or presented a mood board to a client whose real budget was half of what they said in the intro meeting, you already know why intake matters more than the concept.

This guide covers every measurement, credential, form, and preference to collect before you open your CAD software, plus how to stop running intake across a shared Dropbox folder and eight text-message threads.

Why interior designers need a formal client onboarding process

Interior design projects miss timelines and budgets for a short list of predictable reasons: fuzzy scope, missing measurements, unrealistic budgets that were never pressure-tested, and a decision-maker who was never in the room. Every one of them is an intake problem, not a design problem.

A structured intake does three jobs at once:

• Anchors scope and budget from day one. A signed letter of agreement and a completed budget worksheet keep the “can we also do the primary bath?” conversation from happening in week six.
• Removes site-level unknowns before you specify. Accurate measurements, existing conditions photos, and building rules mean your first specification does not get killed by a door width or a co-op board.
• Establishes the decision-maker. Every project has one person whose “yes” ends the debate. Naming that person in intake, in writing, saves whole weeks.

If you run more than one project at a time, informal onboarding breaks. A Notion page cannot tell you the client’s condo board requires proof of insurance from every tradesperson six weeks before install. A dedicated client onboarding automation workflow starts to pay for itself the second time a client asks “wait, what did you already send me?”

The complete interior designer client onboarding checklist

Below is the full intake for a residential or light-commercial interior design engagement. Not every item applies to every project. Single-room refreshes skip most of the trades and permitting sections, gut renovations add several more.

1. Contract and scope documents

Signed and countersigned before anything else moves.

• Letter of agreement or design contract — Scope, deliverables, revision rounds, phases, timeline, out-of-scope changes policy
• Fee structure disclosure — Flat fee, hourly, cost-plus, or hybrid, with billing cadence
• Retainer or deposit invoice — Typically 25 to 50 percent, non-refundable, holds the project on the calendar
• Trade discount and markup policy — Whether the client sees invoices net or with markup applied
• Purchasing terms — Who places orders, who holds the merchant account, when items are non-returnable
• Freight, receiving, and warehousing terms — Especially for projects with a designer-managed receiver
• Change order policy — What triggers one, how it is priced, how it is signed
• Cancellation and pause clauses — What happens if the project is put on hold or ended mid-phase
• Photography and publication rights — Whether you can shoot and publish the finished space

2. Client discovery brief

The document that determines whether you design the right project for the right people.

• Household composition — Adults, children, pets, extended family who use the space regularly
• Lifestyle and daily rhythm — When they wake, cook, entertain, work from home
• Entertaining patterns — Frequency, size, formal versus casual
• Non-negotiables and hard constraints — Anything the client absolutely will not accept
• Existing pieces to keep — Heirlooms, art, rugs, furniture the client refuses to part with
• Existing pieces open to letting go — What can leave the house
• Aesthetic references — Ten to fifteen saved images with notes on what they love
• Aesthetic anti-references — Three to five images of what they cannot stand
• Words the client uses for how the space should feel — Calm, energizing, cocoon, gallery, family-first
• Sensory preferences — Warm versus cool light, high versus low contrast, texture-forward versus minimal
• Allergies and material sensitivities — Wool, latex, VOCs, fragrance
• Sustainability and ethics preferences — Vintage-first, low-VOC, no leather, certified wood

3. Site and space documentation

The measurements and photos your specifications will reference for the rest of the project.

• Full room measurements — Width, length, ceiling height, wall segments between features
• Door and window schedule — Opening dimensions, swing direction, sill height, mullion pattern
• Existing plan drawings — Architect files if the home is recent, floor plans from the closing packet, or a fresh measured survey
• Elevations for each wall — Especially in rooms with paneling, millwork, or built-ins to design around
• Ceiling plan — Beams, coffers, HVAC registers, sprinklers, existing lighting locations
• Photos of every wall, floor, and ceiling — Corners included, taken in natural light where possible
• Existing electrical plan — Outlets, switches, dedicated circuits, panel location
• Existing plumbing rough-ins — For any bath or kitchen work
• HVAC layout — Vent locations, thermostat placement, return locations
• Structural notes — Load-bearing walls, chases, existing steel, anything a contractor already flagged
• Access dimensions — Front door width, stairwell width and turn, elevator dimensions if applicable, hallway constraints for oversized pieces

Getting this in a single upload window instead of across four site visits shaves a full week off the schematic phase.

4. Building, HOA, and jurisdictional requirements

The rules that turn a beautiful specification into a compliance rewrite if they surface late.

• Building or condo alteration agreement — The full document, not the client’s summary of it
• HOA architectural guidelines — Color palettes allowed, roof rules, exterior lighting, landscape rules
• Historic district or landmark guidelines — For any exterior-facing change on a designated property
• Insurance requirements for trades — Coverage minimums, additional insured language
• Working hours restrictions — Weekday windows, weekend prohibitions, holiday blackouts
• Elevator or freight scheduling rules — Reservation lead time, protection requirements, weight limits
• Permit requirements — Which changes require a permit in the client’s jurisdiction
• Design review board process — Meeting cadence, submission format, expected timeline
• Sprinkler, fire, and life-safety code overlays — Ceiling changes, wall relocations, occupancy changes

5. Budget and financial documentation

Get this in writing. Verbal budget estimates are almost always aspirational.

• Total project budget with a real ceiling number — Not a range
• Budget allocation by room or category — Furniture, lighting, window treatments, art, trades, contingency
• Contingency reserve — Ten to twenty percent, agreed in writing
• Payment method for purchases — Client card on file, wire transfers, retainer draw-down
• Financing or credit facility details — If the project uses a construction loan or HELOC
• Tax exemption certificates — For resale numbers if applicable in your jurisdiction
• Prior spending on the space — Recent purchases, in-progress orders from other vendors, deposits already placed

If you find the budget will not support the client’s stated program, that discovery in intake is a productive conversation. In week eight, it is a lost project.

6. Access, credentials, and building access

Every login, key, code, and contact your team needs to work in the space.

• Building access instructions — Doorman contact, building manager phone and email, buzzer code
• Key or lockbox access for site visits — With the client’s expectation of notice
• Alarm codes and provider contact — For any visit without the client present
• Wi-Fi credentials — For extended site work and smart-home commissioning
• Smart home platform access — Lutron, Control4, Savant, Sonos, HomeKit
• Existing vendor contacts — Prior contractor, landscape, AV, security, cleaning
• Parking and loading instructions — For deliveries and install days
• Neighbor notification policy — For loud work, deliveries, hallway blocking

7. Existing trades, consultants, and partners

The professionals already in orbit around the project.

• General contractor — Confirmed or to be sourced, with prior scope of work
• Architect — For gut renovations, additions, or structural changes
• Structural or MEP engineer — If required by scope
• Electrician, plumber, HVAC — Preferred trades or open bid
• Millworker or cabinet shop — For custom built-ins and kitchens
• Upholsterer, drapery workroom, wallpaper installer — Trade contacts if the client has preferences
• AV integrator — Especially for media rooms, whole-home audio, motorized shades
• Landscape or exterior designer — If interior and exterior are coordinated
• Art advisor or gallery relationships — For clients with an existing collection

8. Approvals and stakeholder map

The people who can kill a specification if they only see it at presentation.

• Primary decision-maker — Named, in writing, with signature authority
• Secondary approvers — Spouse, partner, adult children with veto power in shared spaces
• Trust or family office involvement — For high-net-worth clients with outside financial approval
• Absentee stakeholder timeline — Anyone traveling, on deployment, or otherwise off-cycle
• Approval format expectations — Presentation in person, PDF review, weekly summary email
• Turnaround expectations for the client — How fast you expect a yes or no on submitted specifications

Writing the sign-off chain down at intake is the single most valuable habit you can build.

Interior designer client onboarding checklist by project type

Not every project needs every item above. Here is what to prioritize by engagement type.

The mistakes interior designers make onboarding new clients

Four patterns show up across almost every over-budget or delayed project:

1. Measurements collected room by room over multiple visits. Every return trip is unpaid time and a delayed schematic. Batch every measurement and existing-conditions photo into a single site visit with a checklist.

2. Budget accepted at face value. Clients often quote what they hope to spend, not what they are prepared to spend. Get a real ceiling and a contingency in the contract before you specify a single item.

3. Second decision-maker discovered in week five. The client signs, mood boards go over well, and then a spouse or business partner sees the presentation for the first time and hates the direction. Names all approvers in the intake, in writing.

4. Building rules read on the day the freight elevator gets denied. Alteration agreements, HOA guidelines, and insurance requirements are boring. They also block installation dates. Read them at intake, not at install.

Every one traces back to the same root cause: no single place where intake lives. A shared folder does not remind the client to send the alteration agreement. A group text does not flag that the aesthetic references skew modern while the client keeps repeating the word “traditional.”

How to automate interior design client onboarding

Manual intake for interior design breaks the same way it breaks in every other high-touch service business: it depends on the designer remembering to send the next email. Automated intake looks like this:

1. Build one workflow template covering every checklist item above, grouped into phases the client sees as clear steps.

2. Send a magic link the moment the letter of agreement is signed. No account creation, no password reset loop.

3. The client uploads at their own pace through a branded portal that looks like your studio. They see what is still missing, what you have approved, and what you flagged for revision.

4. You get notified every time a measurement, photo, or building document lands. Approve, reject with a specific reason, or ask for a resubmission in one click.

5. The system chases the client on the schedule you set. No follow-up texts from you or your junior designer at 9 p.m.

6. Insurance certificates and trade credentials for every subcontractor renew automatically. See how document expiration tracking handles anything that expires without a manual reminder.

Studios that move from email-and-Dropbox intake to a workflow-based system commonly report kickoff-to-schematic dropping from four weeks to under two, and near-zero missing paperwork at install.

If the intake experience should look like your studio end to end, a white-label client portal strips out any third-party branding. The client sees only your studio name, colors, and logo. For studios positioning at the top of the market, this alone often pays for the tool.

For designers whose contract and template library also includes intake forms, our client intake form template breaks down the fields worth collecting in the first questionnaire.

Frequently asked questions

What documents do I need from a client before starting an interior design project?

At minimum: a signed letter of agreement and deposit, a completed discovery brief with lifestyle and aesthetic inputs, full room measurements and existing-conditions photos, a real budget with a ceiling and contingency, and any building or HOA rules that govern the space. Renovation projects add plan sets, permit requirements, and trades documentation.

How long should interior designer client onboarding take?

Well-run intake is typically two to three weeks from signed contract to first schematic presentation. Manual intake often stretches past a month because measurements, references, and building documents arrive across many emails and site visits. Collecting everything in parallel through a client portal compresses that.

Do I need a signed contract before I start collecting measurements or references?

Yes. The letter of agreement and deposit are the trigger for intake, not the other way around. Site visits and mood boards produced before signature are how designers end up doing free work for a client who never signs.

How do I handle a client who says they have no budget in mind?

Convert the conversation from a number to a range with a ceiling. Ask what they spent on their last renovation, what they would consider a walk-away number, and what they are prepared to add to protect the project from surprises. If no ceiling exists in writing, the project has no scope.

What is the difference between an interior designer intake and a general client onboarding checklist?

Interior design intake collects physical-space inputs that no other client onboarding needs: measurements, existing-conditions photos, building rules, trade contacts, and access credentials for the property itself. Everything a general onboarding covers (contract, brief, budget, stakeholders) still applies, plus the site layer on top.

Onboard every design client through the same clean workflow

If you are ready to stop chasing measurements, alteration agreements, and mood board references across email and text, Superdocu runs the whole intake in one branded workflow. Contract, brief, measurements, photos, and building documents in one link. Start a free trial — no credit card required.