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10 Criteria to Choose the Right Real Estate Agency in Luxembourg
12 February 2026 9 min read

10 Criteria to Choose the Right Real Estate Agency in Luxembourg

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By Sellect.lu

Real estate expert in Luxembourg

Introduction

In Luxembourg, over 300 real estate agencies compete for the market. How do you distinguish those that will save you time and money from those that will waste it? Choosing your agency is a major financial decision: a good agency can earn you between 5 and 15% more on the final sale price.

This guide presents the 10 objective criteria for evaluating and comparing real estate agencies in Luxembourg. Use the Sellect.lu valuation tool to first get a realistic valuation of your property before contacting agencies.

Criterion 1: Local Expertise and Market Knowledge

An agency that knows your municipality inside out will set the right price from the start. Check if they have sold similar properties in your neighborhood in the last 12 months.

Questions to ask:

  • How many properties have you sold in my municipality this year?
  • What is the average price per sqm in my neighborhood?
  • What is the average selling time for this type of property?

Criterion 2: Commission Rate and Price Transparency

In Luxembourg, commissions vary between 2% and 5% + VAT depending on the agency. There is no legal tariff: everything is negotiable.

  • Is the commission inclusive or exclusive of VAT? (Add 17% VAT if net)
  • Are there hidden fees (photos, advertising, viewings)?
  • Is the commission degressive based on the sale price?

Criterion 3: Verified Client Reviews

Client reviews are the best indicator of an agency's quality. A minimum of 20 reviews with a rating above 4/5 is a good indicator.

Criterion 4: Marketing Strategy

A professional agency doesn't just publish a listing on atHome. Ask for the complete marketing plan: professional photos, 3D virtual tour, virtual home staging, multi-channel distribution.

Criterion 5: Availability and Responsiveness

An agency's response time reveals its service quality. An interested buyer who doesn't receive a response within 24 hours will move on to another property.

Criterion 6: Portfolio of Qualified Buyers

An agency with a qualified buyer database can sell your property before it even goes online.

Criterion 7: Legal and Administrative Support

Selling property in Luxembourg requires numerous mandatory documents. A good agency guides you through every step.

Criterion 8: Type of Mandate Offered

There are three types of mandates: simple mandate, semi-exclusive mandate, and exclusive mandate. Limit the duration to a maximum of 3 months with a clear termination clause.

Criterion 9: Past Results and Success Rate

Ask for concrete figures: conversion rate, gap between listed and sold price, average selling time.

Criterion 10: Personal Compatibility

You'll be working with this person for several months. Trust and communication are essential.

FAQ

How many agencies should I compare?

We recommend comparing at least 3 agencies. Use Sellect.lu to receive proposals from multiple qualified agencies in a single form.

Can I switch agencies during a mandate?

Yes, but it depends on the type of mandate. With a simple mandate, you can terminate at any time. With an exclusive mandate, you must wait for the agreed period to end or respect the contractual notice period.

Is a more expensive agency necessarily better?

Not necessarily. What matters is the net seller price: the amount you receive after deducting the commission. An agency at 3% that sells 10% above market price is better than one at 2% that undervalues your property.

Should I sign an exclusive or simple mandate?

The exclusive mandate generally offers better results as the agency invests more in marketing. However, limit the duration to 3 months maximum with a clear termination clause.

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By Sellect.lu

Sellect.lu is the leading platform for comparing real estate agencies in Luxembourg. Our team of experts analyzes the Luxembourg real estate market to provide you with reliable and up-to-date advice.

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