The essentials in 30 seconds
- 4 phases: Studies & Framing (steps 1 and 1.1) → Design (2-5) → Works preparation (6-9) → Construction (10-11).
- 11 steps, each with a deliverable and a verifiable exit proof.
- A validated step doesn't reopen: changes become tracked change orders.
- Verbal sign-off doesn't exist, it's what manufactures disputes.
- The client must see progress without calling you: transparency replaces reporting.
Why projects drift
An interior designer practises three professions at once: a creative one (the concept, the atmospheres), a technical one (the plans, the trades, the site) and a relational one (a private client who lives every decision about their own home emotionally). The profession's project management has to hold all three at once, that's what makes it singular.
When a project drifts, the cause is rarely technical. It's almost always a fuzzy validation: a "yes" said over the phone that everyone remembers differently, a concept deemed approved that reopens at quoting time, change requests arriving continuously by text, email and calls, with no record of which ones were agreed. Every ambiguity is paid twice: in non-billable hours, and in trust.
The principle: move forward on proof, not impressions
The remedy fits in three simple rules:
- Every step has a deliverable, a complete brief, a presented concept, a quote, renders, and an exit proof: the client validated, the quote was approved online, the measurements were confirmed.
- A validated step doesn't reopen. The client can change their mind, it's their right, but the change takes the form of a tracked change order, not a silent rollback that erases validated work.
- Verbal sign-off doesn't exist. An agreement that isn't written and time-stamped isn't an agreement: it's a misunderstanding in waiting. We saw it for the quote in our quoting software guide, the same logic applies to every step.
This principle has a precious side effect: it makes progress readable. If every step ends with a proof, then "where are we?" has an objective answer, one the client can see for themselves.
The 4 phases and the 11 steps
Phase 1, Studies & Framing (steps 1 and 1.1)
1. Project information. Everything that describes the context: the property, floor area, budget, timeline, wishes, constraints, the client's photos and documents. It's the direct continuation of the prospect file, if you've properly equipped your enquiry tracking, this step is already half done. Exit proof: the brief is complete and the framing shared with the client.
1.1 Feasibility study. Before any commitment, the client states their budget envelope. You answer with a named pre-estimate, saved as a version, and a feasibility note with the project documents attached: what fits within that budget, what doesn't, and under which conditions. Exit proof: the fee quote approved online, time-stamped. Until it exists, the project stays in framing and nothing starts.
Phase 2, Design (steps 2-5)
2. Concept. The creative direction: atmosphere, style, intentions, moodboards. Exit proof: the concept was presented to the client and validated, not "they seemed happy", validated.
3. Planning. Layout and plans: the concept becomes a drawn space. This is also where the project calendar is set. Exit proof: plans shared, review meeting held.
4. Sourcing. Materials, furniture, lighting: priced selections, shared with the client for arbitration. Exit proof: selections shared and decided.
5. Joinery. The custom work, wardrobes, bookcases, kitchen, with its unavoidable gate: measurements. Exit proof: measurements requested and confirmed by the client. It's the step where a missing validation costs the most: a custom piece built on an unconfirmed dimension cannot be undone.
Phase 3, Works preparation (steps 6-9)
6. DPGF · CCTP (Estimating). The works estimate: a priced schedule by trade package (DPGF) and its technical specification (CCTP) in the same document, a tree of packages, chapters and items, successive versions and cost-versus-budget arbitration. Depending on your plan, the unpriced template goes out to the contractors you consult, who enter their prices, and you compare the returns item by item. We detailed the method in our pricing guide and showed the document in an annotated DPGF example. On the client side, the step reads "Budget estimate". Exit proof: the estimate shared with the client, then validated by them.
7. Renderings & visualisation. The 3D renders: the client sees their future home before committing to the works. Exit proof: renders filed and shared.
8. Client presentation. The full client review: concept, plans, selections, budget and renders brought together in a single narrative. Exit proof: presentation held and dated.
9. Adjustments before works. The last adjustments, framed before the site opens. The client files their requests in one place, you process them, each one is tracked. It's the anti-"text message flood": one channel, one list, one status per request.
Phase 4, Construction (steps 10-11)
10. Site supervision. The site itself: coordinating contractors, site visits and remarks with photos, the unexpected handled as tracked additional works whenever the scope moves. Two tools carry this step: the works schedule, which sets the order of the packages and the dates, and the financial tracking: contracts, progress statements, balance to pay, which tells you at any moment where the budget stands. Exit proof: dated site reports and additional works validated by the client.
11. Handover & final file. The handover of the works with its reservations, the handover report, then the final file delivered to the client (as-built plans, manuals, warranties). Styling and the photo shoot remain possible; the final file, though, is what is owed. Exit proof: reservations cleared, handover report drawn up, project closed.
| Phase | Steps | Exit proof |
|---|---|---|
| Studies & Framing | 1. Project information 1.1 Feasibility study | Complete brief, framing shared Fee quote approved online |
| Design | 2. Concept 3. Planning 4. Sourcing 5. Joinery | Concept validated by the client Plans reviewed Selections decided Measurements confirmed |
| Works preparation | 6. DPGF · CCTP (Estimating) 7. Renderings & visualisation 8. Client presentation 9. Adjustments before works | Estimate validated by the client Renders shared Review held Requests tracked |
| Construction | 10. Site supervision 11. Handover & final file | Dated reports, additional works validated Reservations cleared, handover report, project closed |
What it changes for your client
A homeowner renovating lives through an opaque experience: they've signed for a result they won't see for months, and in the meantime all they have is your updates. Hence the calls. The proof-based method reverses the situation: if every step ends with a visible deliverable, the client can follow progress by themselves, which steps are validated, which one is underway, what comes next.
The effect is twofold: the "where are we?" calls all but disappear, and trust changes nature, it no longer rests on your word but on what the client can see. It's also, very concretely, a sales argument: showing a prospect the portal where they'll follow their project is worth every speech about your professionalism.
Equipping the method
Can you apply all of this with a spreadsheet and a Trello board? Yes, at first. But everything in them is declarative: you're the one ticking "validated", nothing stops you from doing it wrongly, and nothing links the steps to the quotes, the documents or the client's actual validations. The method then rests on your discipline, that is, on your mental load.
Locking this method in is precisely why Nodal exists: the 11-step pipeline is native, and steps unlock on the proofs themselves, the fee quote approved online starts the project, the client's validation moves the concept forward, confirmed measurements unlock the joinery. Progress never rolls back, adjustment requests are framed, and your client follows everything in real time in a portal under your brand. The plans are on the pricing page, and the most telling test is still to run your own 11 steps on one of your real projects.