LENOZ sustainability certificate training
Last update
Sustainability certificates for residential buildings (LENOZ certificates) must be issued by:
- an architect;
- a consulting engineer;
- an energy consultant;
- a professional approved to perform technical tasks for the purpose of energy-related studies or inspections, and more particularly for the purpose of:
- carrying out energy audits;
- determining the energy performance of buildings and issuing energy performance certificates.
The certification covers 6 assessment categories.
Persons authorised to issue sustainability certificates are encouraged to undergo specific training organised by the Ministry of Housing and Spatial Planning (Ministère du Logement et de l’Aménagement du territoire).
The Ministry of Housing and Spatial Planning publishes a list of all professionals who have received such training on its website.
Who is concerned?
LENOZ certificates are issued by:
- architects;
- consulting engineers;
- energy consultants.
How to proceed
LENOZ certification
The certification covers 6 assessment categories (comprising 143 criteria):
- location: criteria relating to the location of the dwelling;
- social: criteria used to assess the social features of a multi-unit building and how the floor space is used;
- savings: criteria used to assess the energy costs for the dwelling;
- environment: criteria used to assess, among other things, the environmental impact of the building materials used;
- building and technical installations: criteria relating to the quality of the building and its technical installations;
- functional features: criteria used to assess the adequacy of the dwelling for its intended use.
The sustainability certificate is drawn up by the expert handling the file, and shows the building's sustainability classification:
- class 1: very high level of sustainability (4 LENOZ leaves), satisfying 85 % of the criteria;
- class 2: high level of sustainability (3 LENOZ leaves), satisfying 70 % of the criteria;
- class 3: good level of sustainability (2 LENOZ leaves), satisfying 55 % of the criteria;
- class 4: minimal sustainability (1 LENOZ leaf), satisfying 40 % of the criteria.
LENOZ training
Applicants are invited to register for specific LENOZ training.
The training covers the following topics:
- how to draw up a sustainability certificate;
- how to use the specific software provided by the Ministry of Housing and Spatial Planning to prepare a sustainability certificate;
- sustainability assessment criteria;
- the application for financial aid to cover the cost of preparing a sustainability certificate.
List of professionals who have completed LENOZ training
The Ministry of Housing and Spatial Planning publishes a list of all professionals who have completed LENOZ training.
Building materials and Lux EeB-H-Tool software
The LENOZ software is meant to be used by authorised experts – i.e.:
- persons whose professions are legally regulated by the Order of Architects and Consulting Engineers (Ordre des architectes et ingénieurs-conseils - OAI);
- persons who have received ministerial approval to issue energy performance certificates for residential buildings.
However, the software may be downloaded by anyone. The building materials data currently used in the LUX-Eeb Tool H+ software can be consulted in the document entitled, "Materialdaten LENOZ 2016" (in the table on environmental impact of building materials).
Who to contact
Ministry of Housing and Spatial Planning
-
Ministry of Housing and Spatial Planning
- Address:
-
4, Place de l'Europe
L-1499
Luxembourg
Luxembourg
B.P. L-2916
- Phone:
- (+352) 247-84819
- Email address:
- info@ml.public.lu
- Website:
- http://www.logement.lu
-
Single point of contact for housing assistance
- Address:
- 11, rue de Hollerich L-1741 Luxembourg Luxembourg
- Phone:
-
(+352) 8002 10 10
Telephone: Monday to Friday from 8.00 to 16.00
- Fax:
- (+352) 458 844
- Email address:
- info@ml.etat.lu
- Website:
- http://www.logement.lu
Thursdays by appointment only -
Facilitation Unit for Urban Planning and Development (CFUE)
- Address:
- 4, place de l’Europe L-1499 Luxembourg Luxembourg
- Email address:
- prisederdv-cfue@mat.etat.lu
2 of 3 bodies shown
Related procedures and links
Procedures
Links
Further information
-
Listes des architectes, ingénieurs-conseils et conseillers en énergie ayant suivi la formation spécifique LENOZ sur le site logement.lu
Pdf •
-
Manuel explicatif LENOZ sur le site logement.lu
Pdf •
- Dossier modèle LENOZ sur le site logement.lu
-
Materialdaten LENOZ 2016 sur le site logement.lu
Pdf •
-
Logiciel LUX-Eeb Tool H+
octet-stream •
- Formation LENOZ sur le site eacademy.lu
- Formation LENOZ sur le site lifelong-learning.lu
Legal references
-
Loi du 23 décembre 2016
portant introduction d'une certification de la durabilité des logements
-
Règlement grand-ducal du 23 décembre 2016
relatif à la certification de la durabilité des logements
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