Party Walls and Rights of Way in the Alpes-Maritimes: The Technical Guide

Understanding party walls: rights and obligations in the 06 and 83 departments

Party walls are a central legal concept for any property owner in the Alpes-Maritimes (06) and the Var (83). A wall is considered a party wall when it separates two buildings or two yards and belongs jointly to both neighbours. This situation brings rights (use, raising the wall) but also obligations (upkeep, repair). In towns such as Nice, Cannes or Toulon, where urban density is high, party wall disputes are common. Cassini Expertise explains the rules you need to know.

The essential rules governing party walls

The French Civil Code (Articles 653 to 673) governs party walls. Here are the key points:

• Presumption of joint ownership: in urban areas, a dividing wall is presumed to be a party wall unless proven otherwise (notarial deed, ownership markers).
• Mandatory upkeep: each owner contributes to maintenance and repair costs in proportion to their share.
• Raising the wall: an owner may raise a party wall, but must bear the full cost alone and compensate the neighbour if they suffer a loss (e.g. loss of view).
• Acquiring joint ownership: an owner can acquire joint ownership of a neighbour’s private wall by paying half its value and half the value of the land it stands on.

Rights of way: how to establish or challenge them

A right of way is a real property right that allows one owner (the dominant land) to cross a neighbour’s land (the servient land) to access their own parcel. In the South-East, where plots are often landlocked, these rights of way are crucial. There are two types:

• Contractual right of way: established by notarial deed, freely negotiated between the parties.
• Statutory right of way: imposed by law (Article 682 of the Civil Code) to give access to a landlocked property, in exchange for compensation proportionate to the damage caused.

To challenge a right of way, you must prove it has no legal basis or that it is being misused. A land surveying expert can carry out a boundary survey and verify the exact route of the right of way.

The role of the building expert in neighbour disputes

Faced with a party wall or right-of-way dispute, bringing in an expert is often decisive. Cassini Expertise, based in the Alpes-Maritimes, steps in to:

• Carry out joint boundary surveys to formally establish property limits.
• Check that buildings comply with planning rules (local urban plan, setback distances).
• Draw up condition reports before works begin to prevent damage to party walls.
• Provide expert reports that can be used in court or in a property transaction.

Local specifics: the coastline and mountain areas

In the 06 and 83 departments, geography shapes how rights of way work. Along the coast (Antibes, Cannes, Toulon), rights of way over public maritime land are strictly regulated. In mountain areas (Grasse, the Nice hinterland), rights of way for water drainage and canal maintenance access are common. A local expert understands these nuances.

Conclusion: call in an expert to protect your rights

Whether you own property in Nice, Grasse, or the Var, questions of party walls and rights of way call for precise expertise. Cassini Expertise supports owners across the 06 and 83 departments. Call us on 04 22 46 06 04 for a quote. Our knowledge of the local area and regulations guarantees a reliable analysis and solutions tailored to your situation.

Further reading

• Pre-works diagnostics: asbestos and lead in the Alpes-Maritimes

📅 Updated on 26/07/2026 — By Cassini Expertise, independent building expert for the 06 & 83 departments. Free quote: 04 22 46 06 04.

Frequently asked questions

How far from the property line must a building be?

As a general rule, a building must be set back at least 3 metres from the boundary line if it is not a party wall. However, in the Alpes-Maritimes, some municipalities may require greater distances under their local urban plan. It is therefore essential to check the local urban plan before starting any works.

How do I know if a wall is a party wall?

A wall is presumed to be a party wall if it separates two properties and there is no proof to the contrary. Notarial deeds, title documents or construction markers (such as corbels or coping stones) can indicate joint ownership. If in doubt, a land surveyor can carry out a boundary survey to clarify the situation.

What are the rules for a right of way in the Alpes-Maritimes?

A right of way can be established by contract, by destination of the former owner, or by usage (acquisitive prescription after thirty years). In the Alpes-Maritimes, landlocked plots benefit from a statutory right of access, but its exact route must be agreed between the parties or set by the court. Before any construction, it is essential to check the land registry and deeds for existing rights of way benefiting neighbouring plots.

📅 Mis à jour le 25/09/2026 — Cassini Expertise, expert bâtiment indépendant (06·83·13·40).