Renovation support in Luxembourg: which scheme fits your works?

For each item, record what will be replaced, the proposed specifications and the purpose: energy performance, safety, living conditions or furnishing. Ask the contractor to list furniture, equipment and building works separately. This lets you put a specific question to the authority instead of asking whether the entire renovation is subsidised.

Energy renovation support includes a procedure with energy advice and a procedure limited to a single element of the building envelope. The Environment Agency awards the subsidies; Klima-Agence provides advice. Check the procedure for your project and establish the approval-in-principle requirements before work starts. For a heat pump or solar installation, use the dedicated technical-installations guidance. Do not transfer one equipment category's conditions to another.

For renovation, Guichet distinguishes substantial improvements to housing built at least 10 years before work starts and completed within 2 years of commencement, and improvements connected with an acquisition, completed within 5 years. The type of work and use as a main residence remain decisive. Furniture and fitted kitchens are excluded from housing VAT relief. To apply the reduced rate directly, the contractor must obtain AED approval before work starts. Ask for eligible and excluded items to be separated in the quotation.

The improvement subsidy concerns certain works on older housing and depends, among other things, on the household and its income. It is distinct from Topup Klimabonus; the two types of improvement subsidy cannot be combined. Routine maintenance and purely decorative works are excluded. Check the full conditions with the Guichet unique des aides au logement: non-energy works should not be dismissed without examining their nature.

Ask your municipality whether support is available for the proposed items. If it is, obtain the rules, deadlines and conditions for combining support. Do not apply an assumed municipal percentage to a national grant. Record approval, order, work-start and invoice dates for each procedure. Applications under an older scheme must be assessed under that scheme. The announced pre-financing for certain investments invoiced from 1 January 2027 must not be presented as a rule already applying to every project in 2026.

Gather the itemised quotation, property details, technical data sheets and proposed timetable. Assign an official reference and a person responsible for the application to each item. After the works, retain invoices, proof of payment and the requested certificates. Compare quotations before grants, then build a separate scenario containing only support whose conditions have been examined.