Can I use or raise the party wall?
Yes, within the limits of party-wall rules. A party wall belongs jointly to both neighbours (articles 653 to 657 of the Civil Code), who share its use and upkeep. Each can use it on their side: lean a light structure against it, run beams up to half the wall's thickness, plant against it. You can also raise the wall at your own cost: the raised part becomes your property and you maintain it. However, some acts (cutting an opening, leaning a heavy load, demolishing) need the neighbour's agreement or compliance with specific rules.
📋 The rules
- Party wall = joint property of both neighbours
- Shared use and upkeep (costs halved)
- Each can lean against it and run beams up to mid-thickness
- Raising possible at your cost (the upper part becomes private)
- Cutting an opening / heavy loads: neighbour's agreement
🔓 Exceptions
- A neighbour can give up the party-wall right to stop paying upkeep (under conditions)
- Acquiring the party-wall right to a private wall is possible by reimbursing half
- The PLU can frame the wall's height and appearance
⚠️ Penalties & fines
Doing works without respecting party-wall rules (cutting, leaning an excessive load, weakening the wall) can engage your liability: the neighbour can require restoration and damages. Conversely, refusing to share the upkeep of a degraded party wall can be held against you. In a dispute, a surveyor, a conciliator then the judge can settle ownership and responsibilities.
📎 Official sources
- Service-Public.fr · Party wall and party-wall status →
- Légifrance · Articles 653 to 657 of the Civil Code →
- ANIL · Party walls and fences →
❓ Frequently asked
Who owns a party wall?
Both neighbours, jointly. They share its use and upkeep costs. Party-wall status is often presumed for a wall separating two properties, unless proven otherwise (deed, non-party-wall mark).
Can I use the party wall?
Yes, on your side: lean a structure against it, run beams up to half the thickness, plant against it. You must not compromise the wall's strength or hinder the neighbour's use of it.
Can I raise a party wall?
Yes, at your cost. The raised part becomes your exclusive property and you maintain it. The neighbour can later acquire the party-wall right to this raised part by reimbursing half its cost.
Do I need the neighbour's agreement for works?
For ordinary acts on your side, no. But cutting an opening, leaning a heavy load, building in a fireplace or demolishing the wall need the neighbour's agreement or compliance with specific rules, as the wall is shared.
Who pays for party-wall upkeep?
Both neighbours, equally, as the wall is shared. A neighbour can however give up the party-wall right to be freed from costs, under conditions (notably if the wall doesn't support one of their structures).
🔎 Common searches
What people search to land here:
- “party wall rights use”
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- “civil code party wall 653”
- “cut party wall neighbour”
- “acquire party wall right”