Hidden Defects — 3-bedroom Apartment, Maarif, Casablanca

Real anonymised case study. A buyer discovers, 8 months after signing, chronic water infiltration and evolving cracks the seller never disclosed. DOC arts. 549-571 procedure, repair scope 340,000 MAD, ongoing litigation.

Background

Our client (anonymised as "Mr. A.") purchased in May 2025 a 128 m² full-ownership 3-bedroom apartment in Casablanca's Maarif district for a declared price of 2.3 M MAD. The building was delivered in 2018 by a local developer. The deed was signed at notary after a single 45-minute visit, with no independent inspection.

Eight months after move-in, Mr. A. noticed the first damp patches on the living-room ceiling. Winter 2026 (January-February) worsened the infiltration, and vertical cracks appeared on the load-bearing wall. When contacted, the seller denied any defect — claiming he had "seen nothing" during his three years of occupation.

Engagement of ReaConsult

March 2026, Mr. A. engaged ReaConsult. Objectives: establish pre-existence of the defects before sale (a key condition under Moroccan DOC art. 549), quantify the repair cost, prepare the file for a hidden-defects action within the statutory limits: two years from delivery of the property and, in any event, five years from the conclusion of the sale (DOC art. 573, as amended by Law No. 40-24 promulgated by Dahir No. 1-24-38 of 7 August 2024).

Methodology

1. Contradictory on-site inspection (3 hours) on March 18. Seller summoned by bailiff, absent. Exhaustive survey: 47 timestamped and geolocated photos, crack gauge, moisture meter, laser level.
2. Pre-existence investigation — review of the building's condominium AG minutes. A PV from December 2023 (18 months before the sale) explicitly mentions a waterproofing leak on the roof-terrace above the subject apartment — not disclosed to the buyer by the seller, who was then owner-occupier and member of the condominium bureau.
3. Destructive sampling targeted at the ceiling — 30 mm core confirms active infiltration on the waterproofing side, with visible rebar carbonation.
4. Laboratory testing — wall plaster sample, moisture content 14.8% (threshold 3%). Certified analysis.
5. Structural cracks — 3 crack-monitoring gauges installed with 30-day intervals. Evolution of 0.2 mm in 30 days: active cracks, likely related to differential settlement.

Characterisation of the defect (DOC art. 549)

All four cumulative conditions are satisfied:

• Severity: the waterproofing defect makes the living room uninhabitable from the October rains onward (>14% wall moisture).
• Pre-existence: evidenced by the December 2023 condominium AG minutes (18 months before the May 2025 sale).
• Non-apparent: the summer visit (May 2025) could not reveal the seasonal humidity; the cracks were masked by a recent wall repaint.
• Non-disclosure: the seller, a member of the condominium bureau at the time of the 2023 minutes, had knowledge of the defect and did not mention it in the deed.

Repair scope & pricing

Legal outcome

1. April 2026 — 42-page ReaConsult report delivered, validated by a RICS-certified expert.
2. May 2026 — Formal notice sent to the seller by registered post. Demand for full takeover of repairs + damages.
3. June 2026 — Seller silent. Summons for a judicial expertise, followed by action on the merits before the Casablanca Anfa TPI on the basis of DOC arts. 549 and 569.
4. Expected outcome: given the strength of the file (documented pre-existence, rigorous expertise, sourced pricing), high probability of proportional price restitution (actio quanti minoris) or rescission of the sale (actio redhibitoria).

Take-aways

• A pre-purchase inspection at 4,000-6,000 MAD would have prevented this 347,000 MAD situation. Systematically profitable.
• Never visit an apartment only in summer — a winter visit reveals infiltration.
• Always review the last 3 condominium AG minutes before signing.
• Demand a written and detailed no-defects declaration from the seller (DOC art. 552: seller's knowledge aggravates liability).
• Act fast: the DOC limits are two years from delivery of the property and, in any event, five years from the conclusion of the sale (art. 573, as amended by Law No. 40-24). Don't wait for aggravation.