€30/hour (visits, occasional consultations, small renovations)
€40/m² (complete project + design + work coordination)
In cities like Sestao, where the interior design market usually aligns with Basque Country standards, prices tend to be in the mid-to-high range compared to the rest of Spain. This is due to the cost of living, the quality of work sought, and the proximity to Bilbao, all of which directly influence professional fees.
How is an interior designer's price structured?
The final cost varies depending on several pricing models. Below, we explain the most common ones:
1. Hourly rate
This option is common for small projects, quick consultations, or specific modifications. In Spain, it usually ranges between €30/hour and €100/hour, depending on the level of experience and specialization (residential, commercial, etc.). In Sestao, it is reasonable to expect rates between €30/h and €75/h for quality work.
2. Rate per square meter
Widely used in comprehensive renovations along with design. It is used as a reference to compare projects of different sizes. Standard ranges in mid-to-high-level urban areas are usually between €25/m² and €60/m² for the design portion. In Sestao, competitive rates start from €25/m² and reach €50/m² for complete projects or in areas with higher demand.
3. Percentage of the total budget
When the interior designer coordinates the entire project—design, construction, materials, furniture—they usually charge between 10% and 20% of the total cost, depending on the complexity and scope. For example, for a home with a budget of €25,000, fees would range between €2,500 and €5,000.
4. Fixed or combined rate
Some professionals offer a fixed rate for design and then a percentage for execution, which allows for greater transparency. For example: €3,000 for design for a 100 m² structure (€30/m²) + 10% of the total for execution.

Rates related to Sestao
Due to the proximity to Bilbao, prices in Sestao usually reflect both the local and Basque markets. According to customer experiences and previous quotes, it is observed that:
- Consultations or visits: between €30 and €50/hour.
- Design per square meter: between €25/m² and €45/m².
- Comprehensive management (design + construction): between €15,000 and €40,000 for medium-sized homes (70–150 m²).
Comparison of rates
| Service type | Estimated range (Sestao) |
|---|---|
| Occasional consultation / visit | €30 – €50/hour |
| Design (per m²) | €25 – €45/m² |
| Comprehensive management / % of construction | 10% – 20% |
Key steps for hiring an interior designer in Sestao
1. Define your scope
Do you need just an initial design, construction supervision, or full management? This will affect the billing model and budget.
2. Request multiple quotes
Contact 3–4 nearby interior designers or studios; ask for clear and comparative descriptions (e.g., ‘X €/m²’ vs. ‘y €/h’). This will help you visualize what is included: plans, 3D, selection of finishes, coordination, furniture, supervision, etc.
3. Analyze experience and portfolio
Assess professionalism, style, and experience, especially in projects in or near Sestao or Bilbao. Results adapted to the local context are usually more efficient.
💡 Highlighted tip
To ensure quality and budget control, negotiate a mixed scheme: a fixed rate for the design phase + a percentage of the execution. This aligns the interior designer's incentives with overall savings.
4. Agree on deadlines and revisions
Define intermediate deadlines and included revisions. Create clear contracts with deliverables and dates (plans, meetings, changes) to avoid surprises.
5. Control expenses during execution
Some quotes only indicate design and do not include furniture or finishes. Controlling purchases and reviewing substitutes before approving can avoid cost overruns.
6. Agree on a final delivery and adjustment phase
Design often requires adjustments based on unforeseen events; agree on a final review phase (end of work, installed furniture, general validation).
Example of a quote for renovation + design in Bilbao (realistic reference)
| Concept | Estimated cost |
|---|---|
| Initial design (70 m² × €30/m²) | €2,100 |
| Construction supervision / coordination | €3,500 |
| Materials, furniture and finishes | €12,000 |
| Total estimated | €17,600 |
This example shows how an average housing project in Bilbao (and by analogy in Sestao) can be around €15,000–€20,000, including design, direction, and execution.


















