750 euros per square metre in Nantes, more than 1,500 euros in Paris for equivalent works. Yes, you read well. At the same service, the price of a renovation can literally double depending on the city where your property is located. And yet, when you type « how much a real estate renovation really costs » On Google, you often run into forks so wide that they don't mean anything anymore. Between 200 and 2,000 euros per square metre... Thanks, but it doesn't make much progress.
The truth is that the cost of a renovation depends on a multitude of factors: the geographical location, the type of work, the initial condition of the property, the materials chosen, and even the period of the year you start your work. These are variables that make each project unique, and each potentially misleading estimate if it is not contextualized.
Major expenditure items for renovation: understanding where your money goes
Before diving into city-by-city prices, it is necessary first to understand how the budget for a real estate renovation is broken down. Because no, it's not all about « price per square metre » We'll announce you. Behind this figure are very different realities depending on the scale of the work.
There are generally three levels of renovation:
- Light renovation (refreshment) : paint, floor coverings, small covers. We are talking about cosmetic work that does not affect the structure or networks.
- Intermediate renovation : replacement of the kitchen or bathroom, modification of non-carrying partitions, partial electrical standards.
- Heavy renovation (complete restructuring) : recovery of plumbing, electricity, modification of parts distribution, insulation and even intervention on structural elements.
Each of these levels involves different professions, different deadlines, and above all radically different budgets. A simple refreshment can cost between 200 and 500 euros per square metre, while a heavy renovation easily climbs between 1,000 and 2,000 euros or more in some tense areas.
The most important items in the budget? The plumbing andElectricity often come in the lead, closely followed by carpentry (windows, doors), insulation and coatings. Not to mention one often underestimated position: Master's fees, which generally represent between 8 and 15 % of the total amount of work.
→ Did you know that? The post « unforeseen » should systematically account for 10 to 15% of your total budget. On a renovation site, surprises (e.g. old cases, asbestos, hidden structural defects) are the rule, not the exception.
How much does a real estate renovation in Paris actually cost?
Let's start with the capital, where prices reach peaks. And not just for real estate to buy. Renovating in Paris means dealing with specific constraints: Haussmannian buildings with their lots of structural surprises, access to complex construction sites (no elevator, narrow streets, impossible parking for trucks), strict regulations on condominiums, and a demand for artisans that far exceeds supply.
As a result, prices are significantly higher than in the rest of France.
| Type of renovation | Average price per m2 in Paris | Example for a 60 m2 |
| Refreshment | 450-700 € | 27,000 to 42,000 € |
| Intermediate renovation | 900 to 1,400 € | 54 000 to 84 000 € |
| Heavy renovation | 1,500 to 2 200 € | 90,000-132,000 € |
These figures can turn their heads, but they reflect a well-established Parisian reality. Labour costs are 20 to 40 per cent higher than the national average. And the deadlines extend: easily count 4 to 6 months for a complete renovation of an apartment of 60 m2, compared to 3 to 4 months in the province.
How to circumvent Paris prices?
Some levers exist to contain the budget. First, prioritizing work Not everything must be done at once. Next, call on an interior architect or a contractor who knows the local fabric of artisans and can negotiate bundled tariffs. Finally, anticipate the constraints of co-ownership from the start to avoid costly return trips with the trustee.
Renovating in Strasbourg: the right compromise between quality and budget
Eastern France, where the renovation market offers a much better value for money. Strasbourg has a varied housing stock: buildings of character from the historic centre, half-timbered houses, residences of the 60s-70s in the peripheral areas. Each typology has its specificities, but overall, prices remain more accessible than in Paris or on the French Riviera.
| Type of renovation | Average price per m2 in Strasbourg | Example for an 80 m2 |
| Refreshment | 300 to 550 € | 24,000 to 44,000 € |
| Intermediate renovation | 700 to 1 100 € | 56 000 to 88 000 € |
| Heavy renovation | 1 100 to 1 700 € | 88 000 to 136 000 € |
A point of attention in Strasbourg:thermal insulation. The Alsatian climate, with its harsh winters, makes this post particularly strategic. Many old goods require insulation from the interior (exterior insulation is often impossible in the saved area), which can amount to 150 to 250 euros per square metre extra. But it's an investment that quickly turns out on heating bills.
The Strasbourg market also benefits from a dense and competent artisanal fabric, with companies accustomed to working on old buildings. A real asset when renovating an apartment in Petite France or the Krutenau district.
→ Tip: In Strasbourg, find out about the specific support provided by the Eurométropole for energy renewal. They add to national schemes such as MaPrimeRenov
Nice and the French Riviera: the price of the sun is also paid for in renovation
Ah, Nice. The sun, the Promenade des Anglais, the colourful facades of the Old Nice... and renovation prices that sometimes give rise to dizziness. For if life is sweet on the Riviera, the estimates are rarely tender.
Several factors explain this reality. First, strong demand: the Nice real estate market is driven by a demanding clientele (high-end main residences, secondary residences, rental investments of standing) which pulls prices upwards. Then, logistical constraints: narrow streets of the old center, buildings without elevator, strict regulations in protected area.
| Type of renovation | Average price per m2 in Nice | Example for a 70 m2 |
| Refreshment | 400 to 650 € | 28 000-45,500 € |
| Intermediate renovation | 850 to 1 300 € | 59 500-91,000 € |
| Heavy renovation | 1,400 to 2,000 € | 98 000 to 140 000 € |
Niçois prices are therefore close to those of Paris, but do not always reach them. The difference is mainly played on finishes: Azurean customers are often more demanding in terms of materials (natural stone, high-end carpentry, home automation), which makes the note rise.
A specific point in Nice: air conditioning. Unlike other cities, it's almost a must here. The installation of a reversible air conditioning system for an apartment of 70 m2 represents between 4,000 and 8,000 euros, depending on the technology chosen and the complexity of the installation.
How to circumvent Azurean prices?
On the French Riviera, the key lies in the choice of materials. One can obtain a very qualitative rendering with intelligent alternatives: a Ceramic stoneware natural stone effect rather than real marble, for example, saves 30 to 50% on the floor covering without sacrificing aesthetics. A good interior architect will guide you to these clever arbitrations.
Bordeaux: a city in the throes of change, moving prices
Bordeaux has undergone a dramatic transformation in recent years. The arrival of the LGV, the rehabilitation of the docks, the economic dynamism: all this has boosted the real estate market and, in turn, that of the renovation. Prices have risen significantly, but remain below Paris and Nice.
| Type of renovation | Average price per m2 in Bordeaux | Example for a 75 m2 |
| Refreshment | 350 to 600 € | 26 250-45,000 € |
| Intermediate renovation | 750 to 1 200 € | 56 250-90,000 € |
| Heavy renovation | 1,200 to 1,800 € | 90,000-135,000 € |
The Bordeaux park has a particularity: the famous stallsThese typical blond stone townhouses. Renovating a shop is an exciting but challenging project: stone walls to be insulated (without denatured), wooden floors to be taken over, roofs to be rebuilt. The budget for the complete renovation of a 90 m2 shop is usually between 100 000 and 160 000 euros, depending on the initial condition and the desired level of finishing.
Bordeaux, however, has an advantage: a pool of skilled artisans that has grown considerably with the real estate boom. Competition is in favour of the owners, provided they compare the quotes well and do not rush to the first come.
→ Little trick: In Bordeaux, construction sites launched between November and February often benefit from more competitive tariffs. Craftsmen have fewer demands in winter and are more likely to adjust their prices. A saving of 5 to 10% is not uncommon.
Nantes: the best value for money in major cities?
Maybe we keep the best for the end. Nantes is one of the most attractive French cities in terms of renovation costs. Prices are significantly lower than those of Bordeaux or Lyon, while providing access to skilled craftsmen and a dynamic real estate market.
| Type of renovation | Average price per m2 in Nantes | Example for an 85 m2 |
| Refreshment | 280 to 500 € | 23,800 to 42,500 € |
| Intermediate renovation | 650 to 1 050 € | 55 250 to 89 250 € |
| Heavy renovation | 1 000 to 1 600 € | 85,000 to 136,000 € |
Nantes has an eclectic housing stock: 19th-century buildings on Feydeau Island, workers' houses in the Chantenay or Doulon neighbourhoods, residences of the Thirty Glories everywhere. This diversity involves a variety of problems, but overall costs remain.
The city has a particularly developed ecosystem in the area of natural resources, which is often unknown.eco-renovation. Many artisans are trained in sustainable renovation techniques (bio-based insulation, ecological materials, efficient ventilation systems), and the additional costs associated with these virtuous choices are less marked than elsewhere.
For an apartment of 85 m2 requiring an intermediate renovation (new kitchen, bathroom redone, complete paintings, sanded parquet), we are located around 65,000 to 80,000 euros in Nantes. The same project in Paris? Instead, count 90,000 to 110,000 euros. The gap is significant.
National comparison: where to renovate least (and most) expensive
To see more clearly, here is a summary table that puts the five cities studied in perspective. This is based on an intermediate renovation, the most common case:
| City | Average price per m2 (intermediate renovation) | Cost index (base 100 = national average) |
| Paris | 900 to 1,400 € | 135 |
| Nice | 850 to 1 300 € | 125 |
| Bordeaux | 750 to 1 200 € | 115 |
| Strasbourg | 700 to 1 100 € | 105 |
| Nantes | 650 to 1 050 € | 100 |
In other words,Renovating an apartment in Paris costs an average of 35% more the national average, while Nantes is in the middle. These differences are explained by three main factors: the cost of local labour, the tension on the artisan market, and the specific constraints on the construction of each city.
The hidden factors that blow up the budget
Beyond location, some posts are real « budget eaters » that many owners underestimate. To know them is already safe.
Asbestos and lead
In buildings built prior to 1997, asbestos is common (soil pads, glues, flakes, pipes). The asbestos removal is a regulated, expensive and unavoidable operation. Count between 25 and 60 euros per square metre for withdrawal, plus the preliminary diagnosis (between 150 and 400 euros). Lead, present in ancient paints, imposes similar precautions.
Upgrading to electrical standards
A classic. In an old apartment, the full compliance of the electrical panel and the network costs between 80 and 150 euros per square metre. It is a non-negotiable post for security reasons, and often accounts for 10-15 per cent of the total budget for heavy renovation.
The associated costs often forgotten
Insurance : damage insurance (mandatory for major works), which accounts for 2 to 4% of the construction site
Architect's or master's fees : 8 to 15 per cent of work
Co-ownership fees : authorizations, recording, rehabilitation of common parts
Temporary relocation : if the work makes the accommodation uninhabitable, it is necessary to provide accommodation (between 800 and 2,500 euros per month depending on the city)
All these posts « invisible » can easily add 15 to 25 per cent to the original budget.
How to control the cost of its renovation: our concrete advice
Knowing how much real estate renovation really costs is good. Knowing how to optimize this budget is even better. Here are the most effective levers we consistently recommend.
1. Make a complete diagnosis before encrypting
Too many owners are asking for quotes without having a thorough technical background. As a result, bad surprises are accumulating during construction, and the budget is exploding. A complete diagnosis (structure, networks, insulation, presence of pollutants) costs between 500 and 1,500 euros, but it can save you tens of thousands of euros by avoiding unforeseen events.
2. Prioritizing work
Not everything must be done at the same time. One can perfectly phase a renovation project: start with structural and technical works (electricity, plumbing, insulation), then tackle the finishes in a second phase. This approach makes it possible to smooth out investment and maintain financial flexibility.
3. Compare at least three detailed quotes
It seems obvious, and yet. Many owners are content with one or two quotes, often due to lack of time or blind confidence in a recommendation. Differences between artisans can range from 30 to 40 per cent for equivalent benefits. Demand detailed quotes, line by line, and compare what is comparable.
4. Do not neglect financial aid
MaPrimeRenov, Energy Economies Certificates (EEC), zero-rate eco-loan, local aids: the landscape of renovation aids is dense and sometimes complex, but it would be a shame to miss out. For overall energy renovation, the combined aid may represent 30 to 50% of the cost of insulation and heating.
5. Be accompanied by a professional
Interior architect, contractor, construction economist: these professionals are not an extra cost, but an investment. Their expertise makes it possible to optimize technical choices, negotiate with companies, monitor the construction site and avoid costly mistakes. On a significant renovation project (beyond €50,000), their intervention is almost always profitable.
Renovation: investment or expenditure?
That's the question any owner should ask himself before he starts. And the answer is almost always the same: a successful renovation is an investment, not an expense.
In Paris, a complete renovation of an apartment can increase its value from 15 to 25%. In Bordeaux or Nantes, the surplus value is generally between 10 and 20%. Even in Nice, where prices per square metre are already high, a tastefully renovated property sells significantly faster and more expensive than a property. « In the state ».
But beyond the financial surplus, there is daily surplus value. Living in a space that looks like you, functional, comfortable, luminous: it has no price. Or rather, it has a price, and now you know which one.
In short, how much does a real estate renovation actually cost? Between 280 and 2,200 euros per square metre depending on the city, type of work and level of finishing. But behind these figures, each project is a unique story that deserves tailor-made support. If you are planning to renovate your property, don't hesitate to contact us for a first exchange. We love talking about construction, budget and space transformation. And promised, we won't give you a 1,800 euro spread.
