Property Sale FAQ Luxembourg: 50 Questions and Answers

Introduction

Selling a property in Luxembourg and have questions? This FAQ brings together the 50 most frequently asked questions from sellers. Each answer is concise, factual and updated for 2026.

For full guidance, see our complete guide to selling property.

Prices and valuation

1. What is the average price per m² in Luxembourg in 2026?

The average price for apartments is around €7,500/m² and for houses around €6,200/m². These averages vary considerably between municipalities: from €4,500/m² in the north to over €12,000/m² in central Luxembourg City. Check our interactive price map for your municipality.

2. How can I get my property valued for free?

Three free options: (1) the Sellect.lu online valuation tool, (2) request valuations from 2-3 estate agencies, (3) compare with the sale prices published by the Observatoire de l'Habitat (Luxembourg's housing observatory). Ideally, cross-check all three sources.

3. My property has lost value since 2022. Should I wait?

The 2022-2024 correction brought prices down by 15-20%. Since mid-2025, prices have been stabilising and rising again in sought-after areas. If you are not in a hurry, waiting 6-12 months may be wise. If you need to sell, a fairly priced property always finds a buyer.

4. Can I rely on an agency's valuation?

Be careful: some agencies inflate their valuation to win your mandate. This is a common practice known as "strategic overvaluation". Always compare at least 3 valuations and be wary of the one that is 10% above the others.

5. How much does an independent property appraisal cost?

Between €800 and €1,500 for a full appraisal report by an accredited expert. Recommended for properties worth over €1.5 million or in cases of inheritance or divorce.

Documents and preparation

6. Which documents are mandatory to sell?

The energy performance certificate (CPE) is the only legally required document before listing. However, the notary will require: cadastral extract, title deed, plans and mortgage statement. For a condominium: service charge statements and general meeting minutes. See the full list in our dedicated article.

7. How much does the energy certificate (CPE) cost?

Between €600 and €1,200 depending on the size and complexity of the property. Turnaround time: 2-3 weeks. The CPE is valid for 10 years.

8. Can I sell without a CPE?

No. The CPE has been mandatory since 2010 for every property sale in Luxembourg. Not having one can result in a fine and delay the sale. It must be available from the very first listing.

9. Do I need a permit to sell my property?

No, there is no such thing as a selling permit in Luxembourg. However, if you carried out works without authorisation, you will need to regularise the situation with the municipality before the sale.

10. How do I obtain a cadastral extract?

From the Administration du Cadastre et de la Topographie (ACT) in Luxembourg City or online at cadastre.lu. Free for owners.

Agencies and mandates

11. How much does an estate agency cost in Luxembourg?

Commission varies between 2% and 5% + VAT (17%), i.e. 2.34% to 5.85% including VAT. The average is around 3% + VAT. See our commission guide for the details.

12. Is the commission negotiable?

Yes, always. There is no legal fee scale. Negotiation levers: a high property price (over €1M), a likely quick sale, an exclusive mandate (the agency may accept a lower rate in exchange for exclusivity).

13. What is the difference between a simple and an exclusive mandate?

Simple mandate (mandat simple): you can list your property with several agencies at the same time. Exclusive mandate (mandat exclusif): a single agency has the right to market your property for the duration of the contract. The exclusive mandate is often more effective because the agency invests more.

14. What is the ideal duration for a mandate?

3 months maximum, renewable. Avoid 6- or 12-month mandates. Insist on a termination clause with no more than 30 days' notice.

15. Can I sell by myself under an exclusive mandate?

It depends on the contract. With a standard exclusive mandate, no. With a "semi-exclusive" mandate, yes — you can find a buyer through your own efforts without paying the commission. Read the contract carefully before signing.

Sales process

16. How long does it take to sell in Luxembourg?

On average 90 to 120 days between listing and signing the compromis de vente (preliminary sales agreement). Add 2-3 months for the notarial deed. Total: 5-7 months. Timescales vary by municipality — see our barometer by municipality.

17. What is the best season to sell?

Spring (March-June) is statistically the best period. The back-to-school season (September-October) is the second-best window. Avoid July-August and December.

18. How do I set the right asking price?

Cross-check at least 3 valuations. Analyse recent sale prices in your municipality (not asking prices, which are 3-7% higher). Use the Sellect.lu estimator as a starting point.

19. Should I accept the first offer?

Not necessarily. If the offer is more than 10% below the asking price, making a counter-offer is normal. If it is within 5%, it is a serious offer worth considering. It is also important to assess the buyer's profile (confirmed financing, conditions precedent).

20. What is a condition precedent (condition suspensive)?

It is a clause that allows the buyer to withdraw without penalty if a condition is not met. The most common: obtaining a bank loan (30-45 day deadline). Other examples: obtaining a permit, selling another property.

Compromis and notarial deed

21. Is the compromis de vente mandatory?

No, but it is very strongly recommended and near-universal in Luxembourg. It protects both parties by setting out the terms of the sale. See our guide to the compromis.

22. How much deposit is paid at the compromis?

Generally 10% of the sale price, deposited into the notary's escrow account. This amount is negotiable: sometimes 5% for very high-value properties.

23. What happens if the buyer withdraws after the compromis?

If the withdrawal is not covered by a condition precedent, the seller keeps the deposit (penalty clause). If a condition precedent is not fulfilled (e.g. loan refusal), the buyer recovers their deposit in full.

24. How long between the compromis and the notarial deed?

Generally 2 to 3 months. This period allows the buyer to finalise their loan, the notary to prepare the deed, and the authorities to issue the necessary documents.

25. Who chooses the notary?

Traditionally, the buyer chooses the notary in Luxembourg (since they pay the fees). Each party can have their own notary at no extra cost.

Taxation

26. Do I pay tax when selling my main residence?

If you occupied the property as your main residence for at least 2 years before the sale, you are exempt from capital gains tax. Conditions: actual and continuous occupation.

27. How is the property capital gain calculated?

Capital gain = sale price - (purchase price + acquisition costs + improvement works). The purchase price is revalued using an indexation coefficient. See our tax guide for the detailed calculations.

28. What is the Bellegen Akt?

The Bellegen Akt allows you to defer capital gains tax if you reinvest in another property in Luxembourg within 2 years (1 year before or 2 years after the sale).

29. Does VAT apply to the sale of an existing property?

No. The 17% VAT only applies to the first sale of a new-build. Resales are subject to registration duties (paid by the buyer).

30. Which costs are deductible from the capital gain?

Acquisition costs (registration duties, notary fees), improvement works (with invoices), loan interest and estate agency fees are deductible.

Practical aspects

31. Can I sell a property with an outstanding mortgage?

Yes. The sale proceeds are first used to repay the outstanding loan balance. Early repayment fees apply (generally 1-2% of the outstanding capital, capped at 6 months' interest).

32. Can I sell an inherited property?

Yes, once the estate has been settled and the property registered in your name at the cadastre. Watch out for capital gains: the acquisition price used is the value declared in the estate (market value on the date of death).

33. Can I sell a property held in joint ownership (indivision)?

Yes, but all co-owners must agree. In case of disagreement, a judge can order a forced sale ("licitation"). The procedure is long and costly: mediation is preferable.

34. What if my property has a hidden defect?

In Luxembourg, the seller must disclose all known defects. The hidden defects warranty applies for 2 years after the sale. If a defect is discovered and the seller knew about it, they can be ordered to compensate the buyer or the sale can be cancelled.

35. Can I sell en viager in Luxembourg?

Yes, the viager (life annuity sale) is legal in Luxembourg, although rarely used. The price consists of a bouquet (initial payment) and a monthly annuity paid until the seller's death.

Condominium

36. What additional documents are needed to sell a condominium unit?

In addition to the standard documents: service charge statements (3 years), general meeting minutes (3 years), co-ownership regulations, reserve fund statement, planned works. See our guide to selling a condominium.

37. Can the syndic (building manager) block the sale?

The syndic cannot block the sale, but must issue a certificate confirming that the seller is up to date with their charges. Any arrears remain the seller's responsibility.

38. Does a co-owner have a pre-emption right?

Only if the co-ownership regulations provide for it (rare in Luxembourg). Check your co-ownership regulations before listing.

Land and specific properties

39. How do I sell building land?

First check the PAG/PAP zoning classification with the municipality. The price depends on buildability, servicing and location. See our guide to selling land.

40. Can a listed building be sold?

Yes, but with constraints: the buyer must be informed of the restrictions (works are subject to authorisation from the Service des sites et monuments, the national heritage authority). Depending on the case, listed status can reduce or increase the value.

Financial aspects

41. Which costs does the seller bear?

Agency commission (2-5% + VAT), CPE (€600-1,200), mortgage release (€200-500), early loan repayment (if applicable), capital gains tax (if applicable). Details in our guide to seller costs.

42. Does the seller pay notary fees?

The main notary fees are paid by the buyer (registration duties: 6-7% of the price). The seller only pays the mortgage release fees (€200-500) and possibly their share of fees if two notaries are involved.

43. How can I avoid paying capital gains tax?

Three legal options: (1) sell your main residence occupied for more than 2 years (full exemption), (2) use the Bellegen Akt by reinvesting in another property, (3) optimise your deductible costs (works, acquisition costs).

Negotiation and offers

44. What negotiation margin should I allow for?

In 2026, the average margin is 3-7%. Set your price with a 5% margin above your minimum acceptable price. For premium properties, the margin is smaller (2-3%).

45. Should I require proof of financing?

Absolutely. Before accepting any offer, ask for a bank pre-approval letter. This saves you from wasting weeks with a buyer who will not be able to obtain their loan.

46. What should I do with several simultaneous offers?

Assess each offer against 3 criteria: the price, the strength of the financing, and the conditions precedent. The highest offer is not always the best if it comes with risky conditions.

After the sale

47. When do I have to vacate the property?

The property must be vacant on the date the notarial deed is signed, unless otherwise agreed. It is possible to negotiate a period of continued occupancy (in exchange for an occupancy indemnity) in the compromis.

48. When do I receive the money?

The notary transfers the sale price to your account within 3 to 5 business days of the deed being signed. The amount is net of all deductions (loan repayment, mortgage release fees).

49. Do I have to declare the sale to the tax authorities?

Yes. The capital gain realised must be declared in your tax return for the year of the sale (form 100). Even if you are exempt (main residence), it is prudent to mention it.

50. What if I am selling and buying at the same time?

This is the most common scenario. Two options: (1) a bridging loan that finances your new purchase while you wait for the sale, (2) negotiating the signing dates to synchronise both transactions. The Bellegen Akt lets you defer the capital gain if you buy again within 2 years.