Building a house or buying a new home in 2026 means navigating a context of still unstable prices. Construction costs have reached a recent peak, sales of new homes are plummeting, and interest rates remain at levels that hinder many projects. Understanding what drives prices up or down allows for better budgeting and scheduling.
Construction Cost Index: A First Signal of Easing in 2026
Have you noticed that construction quotes seemed to be climbing endlessly for a few years? An indicator is starting to reverse the trend. The construction cost index (CCI), published by Insee, fell from 2146 to 2084 between the first quarter of 2025 and the first quarter of 2026. This represents a decrease of about 2.9% over twelve months, after a peak around 2154 in mid-2024.
Specifically, the CCI measures the price that developers pay to build. When it decreases, it means that some materials or services cost less than a year earlier. For an individual building a home, this is an encouraging signal. Detailed forecasts are also available on the Projet Immobilier website, with analyses by expense category.
This decline in the CCI does not mean that everything is becoming cheaper. The production cost index in construction, on the other hand, remains on the rise: about +2.1% year-on-year at the beginning of 2026. This discrepancy can be simply explained. Materials (concrete, wood, steel) are stabilizing or slightly decreasing. However, labor and subcontracting continue to cost more. Construction companies’ margins remain very constrained.
Price of a New House in 2026: Land Weighs Heavily
When we talk about “construction prices,” we often forget that land represents an increasing share of the total budget. The latest consolidated data from SDES (the statistical service of the ministry) places the average cost of a single-family house project plus land around 313,700 euros.
This figure hides a reality that many future homeowners discover late. The land now absorbs more than a third of the overall budget. In tight areas (coastal regions, outskirts of metropolitan areas), this share can exceed 40%. Buildable land is becoming scarce due to the ZAN (zero net artificialization) policy, which limits urban sprawl.
For the built structure alone, prices per square meter vary depending on the type of construction:
- A wooden frame or classic concrete house remains the most accessible segment, with significant variations depending on the regions and the level of finish chosen.
- High energy performance houses (enhanced RE2020) cost significantly more, as insulation, ventilation, and heating require more technical materials and equipment.
- Partial self-construction projects can reduce the bill but extend timelines and require solid skills.
Why does this information matter? Because negotiating the price of the land is often more effective than cutting back on construction. A slightly off-center plot, just ten more minutes of driving, can save several tens of thousands of euros without compromising the quality of the building.
New Housing Market in 2026: Sales at an All-Time Low
The new housing market is experiencing a volume crisis that weighs on the entire sector. Sales of new homes reached their lowest level in the second quarter of 2026, according to figures reported by the Federation of Real Estate Developers (FPI). The decline approaches a quarter of the volume compared to an already weakened market.
This decline is not just a problem for developers. Fewer new homes built means less supply in a few years. And when supply dwindles, prices mechanically rise again. The current blockage in new construction is preparing for future price pressure.
Several factors contribute to this blockage:
- Interest rates have stabilized but remain well above pre-2022 levels, which reduces households’ borrowing capacity.
- Construction costs, despite the beginning of easing in the CCI, have not decreased enough to offset the rise in rates.
- Local authorities are issuing fewer building permits, partly due to regulatory constraints related to ZAN and environmental standards.
- Buyer confidence remains fragile in an uncertain economic context.
New or Old: A Trade-off Changing in 2026
With new prices decreasing by about 2.1% since 2023 according to some sources, the gap with older properties is narrowing in certain areas. A well-located but energy-consuming older property (rated F or G on the energy performance certificate) may require renovation work whose cost sometimes approaches that of a new purchase meeting current standards.
Simply comparing the purchase price is no longer enough. It is necessary to factor in the cost of bringing energy standards up to date, available aids (MaPrimeRénov’, eco-PTZ), and the resale value in five or ten years.
Evolution of Construction Prices by the End of 2026: Three Concrete Scenarios
The trajectory of prices depends on interacting variables. Rather than predicting a single figure, here’s what could shift the situation one way or the other.
A Stabilization Scenario
If interest rates remain around their current level and the CCI continues to decline slowly, construction prices could stabilize by the end of 2026. Buyers would regain some negotiating power, especially in areas where the supply of land remains sufficient.
A Rise Scenario
If demand picks up (lower rates, incentive tax measures), builders’ order books would fill up quickly. With production capacities limited by a lack of skilled labor, a recovery in demand would push prices up within a few months.
A Prolonged Decline Scenario
If the economic context deteriorates further and sales continue to fall, some developers might adjust their prices downward to clear their stocks. This scenario would benefit buyers ready to act quickly, but it would weaken the construction sector in the long term.
The construction market in 2026 is in a transitional phase. Structural costs are beginning to ease, but the scarcity of land and weak sales create contradictory tensions. For a concrete project, the best approach remains to lock in the price of the land as soon as possible, as this is the item most likely to rise again with ongoing land restrictions.
