Real estate agency in Lasne

IMMOBILIÈRE B2 is an independent real estate agency established in Lasne, in the heart of Walloon Brabant. Managed by Gaëtan Lefebvre, real estate agent, it supports owners in the sale of houses, villas, and houses of character in Lasne and its villages. For 17 years, its approach has been based on a knowledge of the local market and a simple principle: one agent, one file, from the valuation to the signing of the notarial deed.

IMMOBILIÈRE B2, in Lasne

Located at rue Pechère 25 in Lasne, IMMOBILIÈRE B2 has been supporting sellers in Walloon Brabant for 17 years. This location allows Gaëtan Lefebvre to closely follow the particularities of the local market and the expectations of owners.

At IMMOBILIÈRE B2, you benefit from a single point of contact, who personally takes charge of your file, from the analysis of your project and the valuation of the property to the marketing, negotiation, and signing of the notarial deed.

This approach prioritizes availability, discretion, and support adapted to each property. The objective: to define a consistent positioning, attract relevant buyers, and defend your interests at every stage of the sale.

The real estate market in Lasne

Lasne is among the most expensive communes in Wallonia for buying a house. According to Statbel data for the year 2025, the median price of houses sold in the commune reaches €740,000.

Commune	Median price of houses in 2025
Lasne	€740,000
Waterloo	€550,000
Braine-l’Alleud	€415,000

Prices based on the Statbel “Real Estate Prices 2025” report

These amounts allow Lasne to be situated within its real estate environment. However, they do not constitute a valuation of your house: the median represents the central point of prices observed during sales, and not the price at which each property can be sold.

To know the value of your property, an individualized analysis remains essential.

The villages of Lasne: a knowledge of the local market

Ohain

Ohain occupies a special place in the residential market of Lasne, with houses of character, villas, and properties sought after for their environment. For these properties, the evaluation must take into account their uniqueness, their land, their condition, and their precise location.

Maransart

Maransart appeals to buyers looking for a residential environment with a village character. Family houses and properties with outdoor spaces can meet various life projects, depending on their configuration and location.

Lasne-Chapelle-Saint-Lambert

Lasne-Chapelle-Saint-Lambert is part of the residential sectors of the commune where the living environment and the specific characteristics of each property play an important role in the evaluation.

Couture-Saint-Germain

In Couture-Saint-Germain, real estate projects can involve family houses, villas, or properties of character. The value of each property depends notably on its setting, its land, and its general condition.

Plancenoit

Plancenoit offers a village setting appreciated by people looking for a residential environment outside of denser urban centers. The characteristics of the property and its location remain decisive for setting a consistent sale price.

But also in other municipalities of Walloon Brabant.

Selling your property in Lasne: our support

Gaëtan Lefebvre personally supports you at every stage of the sale of your house or property in Lasne.

Property valuation. We analyze your property, its characteristics, and the local market in order to define a consistent asking price.
Preparation and marketing. We prepare a careful presentation of the property and define an adapted distribution strategy.
Viewings and negotiation. We organize the viewings, exchange with potential buyers, and defend your interests during negotiations.
Follow-up until the deed. We support you in the procedures and the follow-up of the file until the signing of the notarial deed.

You thus retain the same point of contact, who knows your property, your expectations, and the decisions made throughout the process.

The trust of our clients,
recognition of our commitment

      Excellente note  
 Basée sur 10 avis 
    
  
 
 
       Nous sommes très satisfaits de notre expérience avec Gaetan Lefebvre pour la vente de notre maison. Nous appréhendions un peu le processus, mais cet agent immobilier a su nous guider simplement et efficacement du début à la fin.

L’estimation de notre maison était juste, le bien a trouvé preneur rapidement et sans stress de notre côté. Toujours disponible pour répondre à nos questions.

Nous recommandons Gaetan Lefebvre sans hésiter à toute personne cherchant un agent immobilier sérieux et humain dans la région de Waterloo.
     
   Isabelle Massage 
 
 
 
 
 
     Très bonne expérience, vivement recommandée!
     
   Aaricia Blondiau 
 
 
 
 
 
     J’ai été ravi des services immobiliers lors de la vente de ma maison. Gaëtan est très professionnel, disponible et à l'écoute. Il m’a accompagné avec sérieux et bienveillance tout au long du processus. Je recommande vivement ses services !
     
   Victoria Gervais 
 
 
 
 
 
     Un pro, un vrai,
pas un qui ne sait pas, mais qui vous dit quand même,
pas un qui "oublie" des détails, qui vous choquent par après,
Pas un qui parle tout le temps, vous empêchant de réfléchir,
Pas un qui dit demain, et vous revient une semaine plus tard,

Lorsque vous êtes prêt a abandonner vos recherches, essoufflé par des mois de visite dans des endroits ou vous vous demandez pourquoi on vous les fait visiter,  vous tombez un jour sur Gaëtan LEFEBVRE, qui vous propose une analyse sérieuse, et vous reprenez espoir de trouver enfin votre nouveau nid...
     
   Gilles Hocepied 
 
 
 
 
 
     Agence familiale très pro, Gaetan et Alexandra sont super dévoués à leurs clients et font en sorte que les démarches administratives soient réglées rapidement et efficacement, dans un esprit d’équité pour toutes les parties, impressionnant! 👍
     
   Sophie Deprez 
 
 
 
 
 
     N hésitez pas à faire appel à leur service
Vous serez compris , guider avec toute la bienveillance et la chaleur humaine qui les caractérise
Marie ( Bruxelles )
     
   Marie Suain 
 
 
 
 
 
     Je vous recommande l'expertise de Gaetan! Il est précis, méticuleux et sérieux. B2 est l'agence sur laquelle on tombe souvent après des mois de tentatives de vente infructueuses via des agences promettant une valeur impossible. Une agence qu'on regrette de ne pas avoir eu la clairvoyance de choisir directement.
     
   Michel Schwarz 
 
 
 
 
 
     Gaëtan est un agent très professionnel, à l’écoute et disponible. Si vous cherchez une maison à acheter ou si vous souhaitez vendre votre maison, c’est la personne à contacter. Je recommande sans hésiter.
     
   Caroll Depoortere-Godin 
 
 
 
 
 
     Je cherchais une jolie maison, classique, entourée d’eau, avec un grand jardin. Il m’a trouvé exactement ce dont je rêvais! Ses conseils, sa disponibilité, sa compétence et sa bienveillance m’ont été précieux . Merci encore.
     
   charles de Selliers 
 
 
 
 
 
     Service impeccable. Je recommande vivement. Je me suis sentie soutenue tout au long de ma démarche d’acquisition d’un bien pour moi et ma famille… et sa présence lors de la signature de l’acte m’a été d’un grand secours. Étant une femme seule, c’était rassurant.
     
   Muriel D

A property for sale in Lasne?

Entrust your project to an independent real estate agency that knows your market and supports you personally. Contact IMMOBILIÈRE B2 to request your free valuation and discuss your project.

Frequently asked questions

Which is the best real estate agency in Lasne?

The choice of a real estate agency in Lasne depends notably on its knowledge of the local market, its valuation method, and the quality of its support. IMMOBILIÈRE B2 is an independent agency located in Lasne, managed by Gaëtan Lefebvre, IPI certified agent n° 505 641. He personally follows each file, from the valuation to the signing of the notarial deed.

What is the price of real estate in Lasne in 2025?

According to Statbel data for 2025, the median price of houses sold in Lasne amounts to €740,000. This figure constitutes a market indicator, not an individual valuation. The value of a house depends notably on its location, its area, its condition, its land, and its own characteristics.

How long does it take to sell a house in Lasne?

The time it takes to sell a house in Lasne depends on the asking price, the type of property, its condition, its location, and buyer demand. A period of two to three months can serve as an indicative benchmark, but it does not constitute a guarantee. A realistic valuation and adapted marketing contribute to preparing the sale under good conditions.