Common-area damage in a condominium: the appraisal that quantifies the loss

1. Common areas or private areas: the first battle is the origin

In Morocco, the condominium of built properties is governed by Law 18-00, amended and supplemented by Law 106-12 (2016) then by Law 30-24 (2024). The distinction between common areas (structure, roof, facade, common pipes, stairwell) and private areas drives, in practice, the allocation of the cost of damage.

The natural reflex is to look at where the damage appears. This is misleading: a damp stain in an apartment may come from a common pipe, and a crack visible in a common area may originate from private works. The issue is therefore not the place where the damage shows, but its technical starting point. As long as it is not established, each party shifts liability to the other — and the reinstatement waits.

2. The three most disputed losses in condominiums

• Water damage — the most frequent. Infiltration through the terrace roof, rupture of a riser, leak of a common waterproofing joint, rising damp through the common areas. Water travels: the damaged room is almost never the one where the cause lies.
• Cracks — from cosmetic disorder to structural signal. Shrinkage cracks with no severity, or evolving cracks reflecting settlement, a structural defect or the impact of neighbouring works. Only a technical examination distinguishes the benign from the serious.
• Partial collapse — fall of a balcony element, a guardrail, a false ceiling, a facade cladding. Safety emergency first, quantification of the loss and search for liability second.

In all three cases, the same mechanics: the origin is disputed, and the cost put forward by one party is contested by the other. This is exactly where a neutral appraisal saves time — and money.

3. Who bears the cost? Syndic, insurance, co-owner

Who bears the cost follows the established origin:

• Origin in a common area: the repair in principle falls to the co-owners' association. The syndic, as agent of the association, must ensure the maintenance and conservation of the common areas — a failure can engage their civil liability. The building's multi-risk insurance, where it exists, may apply.
• Origin in a private area: the co-owner concerned — and their home insurance — bears the cost of damage caused to the other units and to the common areas.
• Disputed or shared origin: this is the most frequent case. An independent technical finding is then needed to determine the starting point of the disorder and each party's share. Without it, the discussion stalls.

Important: the expert appointed by an insurer defends the insurer's interest. When the indemnity offered seems insufficient, an independent appraisal gives the association or the co-owner a contradictory quantification — cost of reinstatement, depreciation applied, and where relevant the reconstruction value of the damaged structure.

4. What exactly the loss appraisal quantifies

A loss appraisal report is not limited to a works invoice. Compliant with RICS standards, it establishes:

• The actual observed state of the affected areas, dated and illustrated (surveys, photos, measurements).
• The probable origin of the disorder, on the basis of a technical examination — common or private starting point.
• The cost of reinstatement, detailed item by item, with a justified rather than flat-rate depreciation applied.
• The loss of enjoyment where applicable for co-owners deprived of use during the works.
• The loss of market value when the disorder — structural cracks notably — leaves a lasting discount even after repair.

This document becomes the common reference for the syndic, the insurer and the co-owners. It does not replace a court decision: a private appraisal falls under amicable negotiation. But it is precisely on that ground — that of agreement, not litigation — that the majority of condominium losses are settled.

5. Before going to court: the mandatory prior conciliation of Law 30-24

Law 30-24, adopted unanimously on 9 July 2024, amended Article 13 of Law 18-00 by introducing a mandatory prior conciliation before any legal action by the syndic — including for unauthorised works on the common areas or breaches of the condominium bylaws. Without a documented conciliation attempt, the action is inadmissible.

The text sets neither deadlines nor detailed terms for this conciliation: confirm the procedure with your lawyer or your syndic. What this changes in practice for a loss: the amicable phase is no longer merely recommended, it becomes a normal step. And in that phase, having an independent quantification of the loss is no longer a luxury — it is the tool that turns a claim into a reasoned proposal.

6. The useful reflex: have it recorded and quantified early

The closer the appraisal is to the loss, the more probative it is. Traces fade, emergency repairs blur the origin, and liabilities become harder to establish. Some good reflexes for the condominium board and the syndic:

• Document immediately: dated photos, preservation of fallen elements, survey of the affected areas. A bailiff's report can complete the file when the stakes are high.
• Secure without destroying the evidence: make safe without erasing what reveals the origin of the disorder.
• Appoint an independent appraisal as soon as the origin or the amount is disputed, rather than waiting for the deadlock.
• Keep the useful documents: condominium bylaws, building insurance contract, latest general assembly minutes, prior maintenance quotes and invoices.

7. Why an independent expert — and not just the insurer?

• Neutrality: the independent expert defends neither the insurer nor a co-owner. Their report is credible for all parties, which makes it an accepted basis of negotiation rather than an argument for one side.
• Competence in value: beyond the cost of works, the real estate expert knows how to quantify the loss of enjoyment and the market-value discount — losses that a tradesman's estimate does not cover.
• Traceable methodology: a report compliant with RICS standards sets out its assumptions, its findings and its comparables, which makes it hard to challenge in good faith.

In litigation, it is the judge who appoints the expert: a private appraisal is not automatically imposed on the court. Its natural ground is amicable negotiation — arbitrating who bears the cost, setting a fair indemnity, preparing the prior conciliation. That is where it is most effective and where it best supports your position with third parties.

8. FAQ

Note: Condominium governed by Law 18-00, amended by Law 106-12 (2016) and Law 30-24 (adopted unanimously on 9 July 2024, mandatory prior conciliation in Article 13). The precise terms of the conciliation, the allocation of charges and the articulation with insurance fall under the texts in force and the condominium bylaws: confirm your situation with your syndic, your insurer or a lawyer. A private appraisal falls under amicable negotiation and is not imposed on the court. To have a loss quantified, see our real estate appraisal service, our condominium advisory or the ReaConsult blog.