A house renovation is not only an aesthetic change, but also a functional, structural and energy improvement. When a renovation of this type is considered, the first big question is usually: how much does a house renovation cost? The answer is: it depends on several factors.
These include the initial state of the property, the materials chosen, the surface area, the type of installations and the necessary licenses. Even so, there are average guide prices that give a clear idea of the budget needed to completely transform a house.
So, if you are thinking of renovating your house or an old apartment, it is key that you understand the scope of your project and what factors influence the final cost. This way you will be able to calculate the ideal budget, adjusted to your needs and location.
What does a comprehensive reform include?
An integral reform implies a general, but deep intervention in the house, which affects all or almost all its elements. It usually includes:
- Demolitions and debris removal: removal of partition walls, tiles, floors, sanitary ware, etc.
- New distribution: lifting of partition walls, creation of open spaces or new rooms.
- Reform of installations: electricity, plumbing, gas, air conditioning and sewage system.
- Thermal and acoustic insulation: improving comfort and energy efficiency.
- Interior and exterior carpentry: doors, windows, closets, etc.
- Coatings: tiling, painting, floors, ceilings, false ceilings.
- Complete kitchen and bathroom: furniture, bathroom fixtures, faucets and appliances if desired.
- Lighting and home automation (optional): modern solutions for comfort and energy management.
If you want to make an integral reform, contact us at Taller d’Arquitectura 43720. This type of reform allows to adapt a house to the new family needs, improve its energy efficiency and even increase its value in the real estate market.
What affects the price of home renovations?
How much it costs to renovate a house, can vary significantly depending on different factors, which must be evaluated before making a budget. For example:
Facilities to be refurbished
Updating or completely replacing electrical and plumbing installations can be a significant part of the cost. If the home is more than 30 years old, these infrastructures will most likely need to be completely renovated to comply with current regulations.
Quality of materials
From bathroom tiles to kitchen furniture to parquet floors, the quality of the materials has a direct impact on the final budget. Choosing medium or high quality can vary the price by up to 30%.
Dimensions of the house to be renovated
The larger the usable area, the higher the total cost of the renovation. For example, a 70 m² house can cost between 25,000 and 40,000 €, while a 120 m² house could easily exceed 60,000 €, depending on the level of finishing.
Delivery time
Renovations with tight deadlines often require more personnel or extended working hours, which also increases the price. A more flexible schedule can help you reduce the cost without affecting the quality of the result.
Construction licenses
Any integral reform requires the corresponding permits from the municipality. These building permits are subject to fees that vary according to the locality and can amount to between 3% and 5% of the total execution budget.
Demolitions
Demolition and debris removal work (especially in older homes) is key to freeing up space and starting from scratch. It is also an expense to be taken into account, as it requires machinery, containers and qualified personnel.
In Taller d’Arquitectura 43720 we evaluate in a personalized way all these aspects to offer efficient and adjusted solutions to each project. Contact us and we will help you to calculate a realistic and complete budget.
Table of approximate prices for a complete renovation
For a concrete reference, these are the average estimates of how much a comprehensive refurbishment will cost in Spain in 2025, based on sources such as Cronoshare and Arquality:
Average price per square meter (according to qualities)
| Quality | Price per sqm | House 70 m² (70 sq.m.) | Dwelling 100 m² |
| Basic | 450 €/m² | 31.500 € | 45.000 € |
| Media | 650 €/m² | 45.500 € | 65.000 € |
| High | 900 €/m² | 63.000 € | 90.000 € |
Price per type of renovation
| Type of reform | Indicative price |
| Bathroom renovation (4-6 m²) | 3.000 € – 6.000 € |
| Kitchen renovation | 4.000 € – 8.000 € |
| Complete electrical installation | 3.000 € – 5.500 € |
| Replacement of windows (PVC or aluminum) | 4.000 € – 9.000 € |
| Thermal and acoustic insulation | 6.000 € – 12.000 € |
| Flooring (laminate or porcelain) | 3.000 € – 7.000 € |
| Complete interior painting | 2.000 € – 4.000 € |
These prices are approximate and may vary depending on the city, the difficulty of the work or if specific improvements are included.
How much does it cost to renovate an old house?
Another frequent question is how much it costs to renovate an old house, compared to a more modern home. In these cases, the price usually increases for the following reasons:
- Presence of old materials that must be removed with special protocols (such as asbestos).
- Structural reinforcement due to deterioration of walls, roofs or foundations.
- Adaptation to current regulations, both in terms of accessibility and energy efficiency.
- Increased need for licenses and previous studies.
On average, renovating an old house can cost 15-30% more than a standard renovation. But it also represents an opportunity to transform a property with character into a modern and efficient home.
At Taller 43720 we help you make it happen with a comprehensive and legally backed architectural approach.
Are you considering a complete renovation of your home?
Requesting professional advice before starting any renovation is key to avoid surprises and to make the most of the budget.
In Taller d’Arquitectura 43720, we design and manage projects of integral reform of housing throughout Catalonia, adapting to each client and ensuring a functional, aesthetic and durable result.
- We calculate with you how much it costs to renovate a house according to your real objectives.
- We help you obtain licenses, select materials and coordinate industrialists.
- We apply sustainable solutions if you are looking for a reform to achieve better energy efficiency in Vilafranca del Penedès.
- We accompany you throughout the work, from beginning to end.
Contact us right now and tell us your idea. We will help you transform it into a reality.