The 4 billable modules
1. Interior design project
Layout, layout planning, plans, lighting, floor layout, ceilings. Fee base: R$ 280–600 per m² (depends on the standard).
2. Cabinetry detailing
Views, sections, hardware specifications. It can be charged per piece (R$ 800–2.500/piece) or as a fixed contract.
3. Selection, specification and purchase
Going to the store with the client, specifying fabrics, buying lighting. Charged by the hour (R$ 250–500/h) or as a commission on purchases (10–20%).
4. Construction management
Coordinating the cabinetmaker, the metalworker, electrical, drywall. Typically charged as a % of the construction (8–15%) or a fixed monthly fee (R$ 4.000–12.000/month).
Budget example (120 m² apartment)
| Item | Value |
|---|---|
| Interior design project (R$ 380/m²) | R$ 45.600 |
| Cabinetry detailing (12 pieces × R$ 1.200) | R$ 14.400 |
| Render: 8 level 2 images | R$ 8.800 |
| Selection/purchases (estimate 60h × R$ 350) | R$ 21.000 |
| Construction management (10% on R$ 350k) | R$ 35.000 |
| Full total | R$ 124.800 |
The client can hire only project + render (R$ 54.400) and handle the rest on their own, as long as they understand what is not included.
Common pitfalls
- "Supervising the cabinetmaker" bundled into the project. Wrong: that is management.
- Unlimited render. Define the number of images and revisions per image.
- Buying everything on your "commission" without clarity: transparency builds trust and prevents disputes.
- A site visit without a record. Charge per visit or with a prepaid package of visits.
Modular budgeting for interiors
Limify has a specific interiors template: project, cabinetry, render, management, all itemized. The client sees the whole, and hires what makes sense.
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