Renovating a house in Luxembourg: planning the stages
Published on 31 July 2026 · Verified on 18 September 2026 · The Mestravaux.lu team
Plan your renovation around the decisions that allow the next work to proceed. A useful schedule identifies what must be defined, delivered or checked before the next intervention. Adapt this outline with your contractors to the building, administrative procedures and any continued occupation.
The essentials in 30 seconds
- Define the rooms, intended uses and constraints before seeking quotes.
- Have the municipality confirm the procedures for your project.
- Assign prerequisites and a responsible person to each intervention.
Describe the intended result and existing building
List the rooms involved, intended uses and elements to retain. Gather plans, photographs and documents from previous work. The housing ministry recommends assessing the existing building before works begin. Record areas not examined and proposed investigations to complete the file.
| Étape | Délai | Ordre de grandeur budget |
|---|---|---|
| Diagnostic et devis | 2 – 6 semaines | 200 – 1 000 € |
| Autorisation communale | 0 – 6 mois | Variable selon architecte |
| Curage et démolition | 3 – 7 jours | 40 – 90 €/m² |
| Gros œuvre et réseaux | 4 – 8 semaines | 600 – 1 000 €/m² |
| Cloisons, chape, second œuvre | 3 – 6 semaines | 300 – 500 €/m² |
| Finitions et réception | 4 – 6 semaines | 400 – 600 €/m² |
Budgets indicatifs pour une rénovation lourde standard, hors imprévus (à provisionner à hauteur de 10 à 20 % du total) et hors TVA réduite éventuelle.
Clarify procedures before fixing a start date
Ask the municipality which permissions and documents are required. Guichet notes that municipal rules may exempt some minor interventions. An application date is not an issued permit. Include any grant procedures in the schedule and confirm their preliminary steps before starting work.
Obtain quotes for a common scope
Send contractors the same description: rooms, quantities to measure, finishes, access and elements to retain. Ask about inclusions, exclusions, options, payment terms and conditions for price changes. Keep undefined amounts in a separate column instead of treating them as zero.
Your project deserves an accurate estimate — it's free.
Request a quotePrepare access and linked interventions
Agree on protection for retained spaces, storage, waste removal and necessary service interruptions. If you remain at home, specify the rooms and facilities that must stay accessible. Ask contractors to explain dependencies between removal, utilities and finishes, and checks required before an area is closed up.
Track changes through to handover
Record site decisions and their effects on costs and timing. Before finishing work, address unresolved items that will become hard to reach. At handover, request a joint walkthrough, a written list of outstanding items and the manuals, updated plans and supporting documents specified in the contract.
Frequently asked questions
How long should the renovation take?
Request a schedule after defining the project. Distinguish procedures, procurement and work on site, with their assumptions and dependencies. A single duration for every house would be misleading.
Can we stay in the house?
Discuss access, disruption, service interruptions and essential facilities with those involved. If alternative accommodation is needed, include it in both budget and schedule.
What if a contractor discovers a problem?
Ask for a record of the finding, proposed solutions and cost implications before accepting the change. Update subsequent work where it depends on the decision.
Take action
Your project deserves an accurate estimate — it's free.
Request a quote