Luxembourg CCDL Exam case studies

Luxembourg CCDL Exam · Put your knowledge to work in context.

The CCDL (Certificat de Conduite pour la Délivrance de Logements) is a Luxembourgish professional certification for people who manage or contribute to the delivery of housing. Candidates typically come from architecture, engineering, construction management, property development and public administration, and need a working command of the rules and techniques that govern a residential project from feasibility to handover. The Luxembourg CCDL Exam case studies are 5 cases and about 3,412 words.

Phase 2 PAP not adopted: can the commune refuse a compliant-density scheme?

Commune de Rumelange. A developer owns a 41-are parcel in zone HAB-2 under the PAG adopted in 2018.

756 words, about 4 min 2

Works started on a récépissé: change of use, ramp and protected zone

Commune d'Esch-sur-Alzette. An owner wants to convert a 240 m2 ground-floor retail unit in a 1970s mixed-use building into a six-chair dental practice.

699 words, about 3 min 3

Internal insulation of a solid brick wall: U-value, dew point and Klimabonus

A 1965 detached house in Luxembourg-Ville has a 30 cm solid brick wall (lambda 0.58 W/mK), 15 mm cement render outside and 10 mm gypsum plaster inside. The owner wants internal insulation to reach a U-value of about 0.24 W/m2K using 100 mm mineral wool (lambda 0.035) on a stud frame, without a vapour barrier, and to keep the existing natural ventilation by opening windows.

665 words, about 3 min 4

Attic conversion with dormer, notched beam and no structural calculations

A 1935 stone masonry house in Diekirch has a roof structure of 160 x 240 mm pine rafters at 800 mm centres spanning 4.8 m, with a collar tie at mid-height. The owner wants a habitable attic: 60 mm screed with acoustic mat, 18 mm OSB, a 2.0 kN/m2 imposed load, and a new 3.5 m wide dormer removing two rafters and the collar tie.

640 words, about 3 min 5

Converting a guesthouse into a care home with one open stair

A 1978 three-storey building (ground plus two) is to be converted from a 12-room guesthouse into a maison d'accueil for 18 elderly residents, six per floor, including four residents with reduced mobility. The only stair is 1.10 m wide, open to the ground-floor lobby, and discharges through the kitchen.

652 words, about 3 min