New construction insurance: expert guide and key obligations

By Eredit - ERRA Group   Published on Sunday, June 8, 2025 at 19:57
New construction insurance

Summary for decision-makers

The construction industry is constantly evolving, and each new construction project represents an exciting but complex adventure. Even before laying the first stone, it is essential to understand the legal insurance requirements to secure your real estate investment. French law requires the purchase of certain guarantees upon construction site opening, such as building damage insurance (DO). Mandatory for all project owners, whether private individuals or professionals, DO covers ten-year defects that may occur within ten years of completion of the work. It ensures rapid compensation without waiting to determine liability, which is crucial for the continuity of the project.

At the same time, building owner liability insurance (RCMO) is highly recommended to protect the owner against damage caused to third parties during construction. For the builder, taking out insurance such as professional liability (RCP), the ten-year warranty, and the two-year warranty is mandatory and demonstrates its reliability. Finally, it is crucial to take out home insurance as soon as the building is "watertight/airtight" to cover the increased risks at this stage of the construction process. New homes generally benefit from more advantageous insurance rates due to their controlled claims experience. Navigating these obligations and trends, particularly with the regulatory changes of 2024 focused on environmental issues, requires careful preparation to ensure the sustainability of your real estate project.

Frequently Asked Questions for Decision Makers

When should I take out home insurance for my home under construction?
It is recommended that you take out home insurance as soon as your home is declared "watertight/airtight", i.e. once the roof and exterior joinery have been installed, to cover the increased risks at this stage of the work.

What insurance is mandatory for the project owner?
The project owner must take out building damage insurance (DO) before the start of the work and it is strongly recommended to take out building owner civil liability insurance (RCMO) to protect against damage caused to third parties.

Why are new homes cheaper to insure?
New homes generally have lower claims experience due to modern construction standards and quality materials, which reduces risk for the insurer and results in more favorable insurance premiums for homeowners.



A complete guide to home insurance for new builds. Discover legal requirements, essential guarantees, and expert advice to secure your real estate investment.

Master the essential guarantees for your real estate project

The construction and public works (C&P) sector is constantly evolving. Each new construction project is an exciting adventure. However, this process also involves many questions, particularly regarding insurance. Understanding legal obligations, crucial construction stages, and essential protections is essential. This article offers a detailed guide. It explains how and when to best insure your new real estate investment. This information is vital for project owners and professionals in the sector.

The legal foundations of construction insurance

Planning a construction site requires careful preparation. Thinking about insurance is essential even before the first shovel is broken. French law requires the purchase of certain insurance policies from the start of construction. These provisions are intended to protect all stakeholders. More info

Building damage insurance: an essential obligation

Building damage insurance (DO) is a key component. It is mandatory for all project owners, whether private individuals or professionals. This insurance takes over from builders. It covers defects of a ten-year nature. These defects or construction defects can appear within ten years of the work being completed. DO allows for rapid compensation for damages. It avoids the need to first seek liability. This significantly speeds up the repair process.

The cost of this insurance varies. It depends on several determining factors. The geographic location of the property directly influences the price. The size of the building, in square meters or volume, is also an important criterion. The type of construction, whether it is a single-family home or a multi-family building, also impacts the price. Finally, the materials used, such as concrete, wood, or steel, are significant elements in calculating the final cost. This insurance is a legal requirement for all owners who initiate the construction of a new single-family home or apartment. Failure to subscribe to DO insurance can result in legal sanctions. It also compromises the resale of the property.

Building damage insurance guarantees solid financial protection. It ensures repairs are covered without waiting for a court ruling. This speed is essential for project continuity. It also preserves the property's heritage value. Construction experts are familiar with this guarantee. They emphasize its preventative impact. It encourages professionals to be rigorous right from the design stage.

Civil liability of the project owner: protecting third parties

Along with building damage insurance, it is highly recommended to take out building owner liability insurance (RCMO). This coverage protects the owner. It covers property damage or bodily injury caused to third parties during the construction period. These third parties can be passersby, neighbors, or even unexpected visitors to the site. RCMO complements building site liability insurance. The latter covers risks related to the period preceding the start of construction.

RCMO insurance provides peace of mind in the face of unforeseen events. An incident on a construction site, even a minor one, can have significant financial consequences. Falling materials, a damaged vehicle, or an accident involving a third party are concrete examples of claims. Purchasing this insurance transfers this risk to the insurer. It ensures professional management of any potential disputes. This allows the project owner to focus on progressing the work.

The manufacturer's commitments: essential guarantees

The builder, a key player in the project, also assumes major insurance obligations. These professional insurance policies are essential. They protect both the project owner and the sustainability of the project. They demonstrate the professional's reliability.

The professional's insurance triptych

The builder must take out several insurance policies. Each has a specific role.

  • Professional liability insurance (PLI) This warranty covers damages that the manufacturer or its teams may cause to third parties. These damages occur during the course of their business. These include design errors, delays, or accidental material damage.
     
  • Ten-year insurance : Essential, it guarantees the solidity of the structure. It covers damage that compromises the stability of the building. It also applies if the property is unfit for its intended purpose. This coverage extends for a period of ten years from the acceptance of the work. It concerns hidden defects and disorders affecting essential elements.
     
  • Two-year insurance (or proper functioning guarantee) This warranty covers equipment elements that can be separated from the building. These elements can be removed or replaced without damaging the structure. Examples include electrical appliances, false ceilings, and interior doors. This warranty lasts for two years after acceptance.

These insurance policies are essential to protecting the owner's interests. They guarantee the quality of construction. Before starting any project, checking your builder's insurance certificates is a crucial step. This ensures that all stakeholders are properly covered. It also strengthens mutual trust. A copy of the certificates should be requested.

"Transparency regarding the builder's insurance is the first cornerstone of a successful partnership. It establishes the trust that's essential for a smooth and sustainable project."

When Home Comes to Life: The Role of Home Insurance

The question of when to take out home insurance is a recurring one. For a new home, whether purchased through a sale off-plan (VEFA) or a self-build, key steps dictate the purchase. These steps coincide with the physical evolution of the building.

From watertight/airtight to occupation: the right timing

It is strongly recommended to take out specific insurance. This takes effect as soon as the structural work is completed. This means that the home is "watertight" (roof installed) and "airtight" (exterior walls and woodwork installed). At this stage, the building is enclosed and roofed. It can begin to accommodate interior fittings. The risk of loss then increases significantly. Fire, water damage, or even vandalism become real threats. The home then becomes vulnerable to the elements.

Before reaching this "watertight/airtight" stage, comprehensive home insurance (MRH) is not a formal requirement. However, it remains prudent to ensure that all professionals working on the construction site have their professional insurance. Some real estate developers offer evolving contracts. These adapt to each phase of the construction. They can include comprehensive home insurance from the start of construction. This approach simplifies insurance management for the buyer.

The "watertight/airtight" phase marks an important transition. The property begins to take its final form. Insurers consider this moment as the starting point for risks related to the home itself. Equipment, finishing materials, and interior fittings are then vulnerable. Home insurance therefore becomes a necessity. It protects the investment as it is being made.

A range of guarantees for complete protection

Once the home is "watertight" and "airtight," home insurance becomes truly relevant. It offers comprehensive coverage.

It includes in particular:

  • Fire and explosions.
  • Water damage, whether due to leaks or flooding.
  • Acts of vandalism and willful damage.
  • Glass breakage, concerning windows, glass doors, and mirrors.
  • Bad weather (storm, hail, snow, wind).
  • Theft and attempted theft.
  • Family civil liability, protecting against damage caused to third parties.
  • Natural disasters, recognized by an interministerial decree.

Additionally, many home insurance policies offer optional coverage. These extensions can be very useful. Legal protection is a valuable option. It provides support in the event of a dispute with a tradesperson, for example. Assistance, whether technical or logistical, is also an asset. These coverages are particularly relevant in the event of a major loss.

After moving in, it's important to update your policy. You must include the value of your furniture and personal belongings. This step ensures complete coverage for your assets. Specific clauses for new homes are often advantageous. They take into account recent materials and adapt to modern technologies.

The advantages of insurance for new homes

Insuring a new home offers tangible benefits. These benefits are often reflected in the price and quality of coverage. Modern construction provides increased security.

Competitive rates, controlled claims

New homes generally benefit from more attractive insurance rates. In France, a new home costs an average of €350 per year to insure. This figure is lower than the €390 annual rate observed for an existing home. This price difference is explained by a historically lower claims experience in recent constructions. Insurers are seeing fewer claims.

New homes are built according to the latest safety standards. They also incorporate innovations in energy efficiency. Compliance with current regulations reduces risks for the insurer. This translates into lower premiums for homeowners. However, the coverage offered remains very effective. Fire protection systems, thermal insulation, and modern electrical installations minimize risks. These elements contribute to a safer environment.

This provides homeowners with optimal protection at a reasonable cost. The quality of materials and modern construction techniques reduces the likelihood of claims. This ensures greater profitability for the insurer. This directly benefits policyholders. Resale value is also preserved.

The insurance market is evolving to adapt to contemporary challenges. The year 2024 marked significant changes. These changes reflect a heightened awareness of environmental and technological issues.

New obligations and contemporary issues

Since 2024, owners of new homes have been facing new home insurance requirements. These changes aim to improve property protection. They also make owners more responsible. Insurers are now taking into account the new challenges associated with modern construction. The energy performance of buildings is a major criterion. Stricter environmental standards are also influencing contracts. Particular attention is being paid to bio-sourced materials.

It is therefore essential to choose insurance wisely. The contract must be perfectly adapted to the specific characteristics of your new home. Technological innovations and ecological requirements shape the offers. A passive house, for example, could benefit from special conditions. The integration of advanced home automation systems or solar panels can also influence coverage. Talking to a specialized broker is recommended.

Practical tips and strategies for a secure project

Protecting your new real estate investment requires a methodical approach. Follow these practical tips for optimal coverage. Proper preparation is the key to success.

Essential checklist for optimal coverage

  • Take out building damage insurance from the start of the work. This is a fundamental legal obligation.
     
  • Check all mandatory insurance from your builder. Request professional and ten-year civil liability certificates.
     
  • Take out owner liability insurance. It covers risks related to the construction site with respect to third parties.
     
  • Open a home insurance contract as soon as the accommodation is considered "watertight and airtight".
     
  • Adjust your contract after moving in. Include the value of your furniture and personal property. This update is crucial.
     
  • Compare insurers' offers. Find the best coverage at the fairest price. Use online comparison tools or consult several specialized brokers.

Insuring a new construction project is an essential step. It protects your investment. It also guarantees your peace of mind. By complying with legal obligations and subscribing to the appropriate guarantees for each stage of the construction process, you minimize potential risks. You then fully enjoy your new home. New homes offer major advantages. They benefit from advantageous insurance rates and optimal coverage. Home insurance is a fundamental pillar for any new owner. It's a winning strategy for the longevity of your assets and the peace of mind of your project.











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