Case study: civil case No. 2-310/23
In brief: when several owners may sue together
If one flooding incident damages several apartments, the owners may act as co-claimants in one Russian civil case when their claims share a common basis or are homogeneous. Each claimant remains procedurally independent and must prove title, damage and the amount claimed for their own apartment. Joinder can avoid duplicating evidence, but it does not turn separate losses into one collective sum.
What happened in this case
On 15 May 2023, the Butyrsky District Court of Moscow issued a default judgment in civil case No. 2-310/23. According to the published redacted copy, one rupture of a cold-water riser damaged two apartments. Their owners brought claims against the property management organisation in the same proceedings.
The defendant did not dispute responsibility for the incident but challenged the amount of loss. The court commissioned construction, technical and valuation expertise. After the report was filed, each claimant adjusted the amount sought for their own apartment.
| Category | First claimant | Second claimant |
|---|---|---|
| Property damage | RUB 444,898.28 | RUB 269,972.69 |
| Non-pecuniary damage | RUB 5,000 | RUB 5,000 |
| Consumer-law penalty | RUB 224,949.14 | RUB 137,486.35 |
| Valuation expenses | RUB 12,900 | RUB 12,150 |
These figures describe one decided case only. They are neither a benchmark nor a guarantee of any result in another dispute.
Why procedural joinder may apply
Article 40 of the Russian Civil Procedure Code permits multiple claimants where rights or obligations have a common basis, are homogeneous, or concern shared rights and duties. In an apartment-flooding dispute, the connection may consist of:
One incident
The apartments were damaged by the same event, so much of the evidence concerning cause and conduct of the defendant overlaps.
One proposed defendant
Both owners attribute the loss to infrastructure within the responsibility of the same management organisation.
Homogeneous claims
Each owner seeks compensation for their own property damage arising from a similar factual basis.
The judgment does not separately analyse Article 40. Describing the participation of two claimants as procedural joinder is a legal explanation of the case structure, not a quotation from the court.
How the proceedings developed
- 1A common source was recorded. The case materials identify a cold-water riser rupture and damage to two apartments.
- 2Two owners brought one action. Evidence and the amount claimed for each apartment remained separate.
- 3The amount was disputed. The defendant challenged the calculations while not denying responsibility for the incident.
- 4The court appointed an expert. Restoration costs were assessed separately for each apartment.
- 5The claims were adjusted. The court granted them in part by reference to the expert findings and the circumstances of each claim.
What this copy of the judgment does not establish
- It is a default judgment. The copy alone does not establish when it became final or whether it was subsequently challenged.
- The court commissioned an expert examination; the judgment provides no basis for describing it as a repeat examination.
- One case does not mean that every group of neighbours can litigate together. The court assesses the connection between claims and procedural efficiency in the individual circumstances.
What each co-claimant must prove separately
- ownership or another lawful basis for occupying the relevant apartment;
- the flooding report, photographs and damage affecting that apartment;
- causation between the incident and the specific damage;
- valuation reports, estimates, receipts and other evidence of individual loss;
- their own remedies, applications, objections and appeal rights.
Co-claimants may authorise one or more participants to conduct the case, but the authority must be properly documented and cover the necessary procedural acts.
When one action helps — and when it may not
| A joint action may help | Separate cases may be more practical |
|---|---|
| There is one source of flooding and one proposed defendant | Damage has different causes or requires materially different expert evidence |
| Most evidence of cause and responsibility is shared | One claimant cannot provide documents or repeatedly delays the proceedings |
| The same factual questions need not be examined twice | The claims arise under different contracts, events or legal regimes |
Documents to review before filing
- flooding reports for every damaged apartment;
- evidence of the source and operational responsibility boundary;
- land-register extracts or other title documents for every claimant;
- photographs, videos and correspondence with emergency and management services;
- a separate calculation of damage and expenses for each owner;
- proof that notices, inspection invitations and pre-action claims were sent;
- powers of attorney if a representative or one co-claimant conducts the case.
Frequently asked questions
Must all owners claim the same amount?
No. The incident and defendant may be common, while loss for each apartment is calculated and proved separately.
Can one claimant discontinue independently?
Each co-claimant acts independently. The court determines the consequences of a procedural statement for that participant and their claim.
Must one expert report cover every apartment?
There is no universal rule. The court defines the questions, objects and form of the examination. Even one report should make the repair cost for each property clear.
Can already-filed cases be joined later?
The court decides whether connected proceedings should be combined. A request by the parties does not produce automatic consolidation.
Does this approach work when the source is a neighbour’s apartment?
Article 40 may still be relevant, but liability must first be assessed from the source, ownership of the equipment and the conduct of the persons involved.
Where is the general flooding checklist?
See the main apartment-flooding guide for evidence, liability and damages.
Sources
- Redacted copy of the default judgment in case No. 2-310/23 (Russian)
- Article 40 of the Russian Civil Procedure Code (Russian)
- Civil Procedure Code — Russian Ministry of Justice page (Russian)
Related materials
Need to assess whether claims can be joined?
A consultation can compare the source of flooding, the parties and evidence for each apartment, and help select a procedurally workable claim structure.