Embarking on a home renovation often brings both excitement and uncertainty. One of the biggest challenges is that costs and timelines can easily increase as the project progresses.
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To help reduce uncertainty and establish a realistic budget before work begins, here are some key points to consider when calculating how much it costs to renovate a house.
How much does a full renovation cost?
Many factors influence the budget for a full renovation, making it difficult to determine an exact average cost. However, industry estimates generally place prices at:
- Between €850 and €1,000 per square metre for a complete renovation with medium-quality materials.
- Between €700 and €850 for a full renovation with basic-quality materials.
- Between €1,000 and €1,300 for a complete renovation with high-quality materials.
What does the price of a full renovation include?
A full renovation involves extensive work throughout the property, ranging from utility systems to final finishes, and may also include a complete redesign of the layout.
The main elements typically included in a full renovation are:
- Demolition work.
- Upgrading electrical, plumbing and gas installations.
- Complete refurbishment of kitchens and bathrooms.
- Replacement of joinery, doors and flooring.
- Reconfiguration of the layout, including access points, partitions and lighting.
- Full interior painting and decorating.
Depending on the scope of the project, costs can remain relatively controlled or increase significantly. The fewer interventions required, the easier it is to manage the budget. However, essential improvements related to safety and building performance should not be overlooked.
Factors that influence the budget for a full renovation
Understanding the elements that determine the cost of a full renovation will help you prioritise spending according to your needs and preferences:
- Total floor area: Generally, the larger the property, the higher the renovation cost. However, some decisions, such as the choice of flooring or finishes, can help keep spending under control.
- Quality of materials: The higher the material quality, the greater the cost. A sensible approach is to invest more heavily in priority areas while making savings on less essential elements. For example, high-performance insulation may deliver greater value than premium interior joinery.
- Layout changes: Altering the layout can involve relocating electrical wiring and plumbing, removing partition walls and replacing doors. For this reason, it is worth carefully assessing your needs. If a complete redesign is planned, an open-plan layout may help reduce overall costs.
- Labour: Hiring an experienced professional team with fixed deadlines and contractual penalties for delays can provide greater guarantees, although labour costs are likely to account for a larger share of the budget.
- Technical project and site management: Costs vary considerably depending on the architect, designer or project management team you choose. If you want to maximise the potential of your property, investing in high-quality professional advice can be worthwhile.
How much does a full renovation of a 100 m2 flat cost?
These are the average prices you can find on the market:
- Between €70,000 and €85,000 for a full renovation with basic-quality materials.
- Between €85,000 and €100,000 for a full renovation with medium-quality materials.
- Between €100,000 and €130,000 for a full renovation with high-quality materials.
What is the most expensive part of a full renovation?
In most cases, the kitchen and bathrooms account for the largest share of the budget, although this varies from project to project. Luxury designs, bespoke fittings, premium worktops and high-end appliances can all increase costs substantially.
External joinery can also have a significant impact on the budget, particularly when large windows, custom-made units or high-performance insulation systems are involved.
Finally, electrical installations, thermal insulation and acoustic improvements can add considerably to renovation costs. However, these investments often deliver long-term benefits by improving the overall comfort and energy efficiency of the property.
