Step 1: How to use this calculator?

List all the line items of project (demoliciÃ³n, albaÃ±ilerÃa, fontanerÃa, electrical, finishes...)

Step 2: How to use this calculator?

Measure the quantity is of each line item (mÂ², m, units) segÃºn drawings of the project

Forget line items ocultas: permits, fees municipales, ICIO, conexiÃ³n of supplies

Not update the precios unitarios a the date current of ejecuciÃ³n of the project

Last updated: 2026-08-24

Renovation Budget Calculator — Calculate renovation budget for materials and labor.

Inputs

Result

Enter values and press Calculate

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List all the line items of project (demoliciÃ³n, albaÃ±ilerÃa, fontanerÃa, electrical, finishes...)
Measure the quantity is of each line item (mÂ², m, units) segÃºn drawings of the project
Assign the price unitario of each line item segÃºn the base of precios of construcciÃ³n vigente
Multiply each line item per its price unitario and sum all the subtotales
AÃ±ade the percentage of overheads (13-19%) and profit industrial (6%)
Apply the IVA correspondiente (21% to obras, 10% to rehabilitaciÃ³n in home usual)
Add fe is of project (architect, aparejador) if procede

⚠️ Forget line items ocultas: permits, fees municipales, ICIO, conexiÃ³n of supplies
⚠️ Not update the precios unitarios a the date current of ejecuciÃ³n of the project
⚠️ Confusing budget of hires (with GG+BI) with budget of ejecuciÃ³n material (PEM)
⚠️ Not including the cost of gestiÃ³n of waste of construcciÃ³n and demoliciÃ³n (RCD)
⚠️ Subestimar the contingencies: reserva siempre a 5-10% additional of the PEM

Calculate renovation budget for 80m² apartment.

Results: {eur_m2} â‚¬/mÂ², {total_eur} â‚¬ total, {materiales_eur} â‚¬ in materials, {mano_obra_eur} â‚¬ in labor, {gestion_eur} â‚¬ in gestiÃ³n.

Field	Typical range
tipo_reforma	Nivel of calidad: bÃ¡sica (econÃ³mica), mean (estÃ¡ndar), alta (premium), lujo (alto standing)
area_m2	Enter the renovation area between 10 and 2000 mÂ².