Real estate agencies in Brussels that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for real estate agencies in Brussels, three times each, in French, and counted who they named. These are the businesses named in two or more of the 36 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 36
- Businesses named
- 23
- Named only once
- 8
- Named by 2+ assistants
- 5 of 15
- Named again on a rerun
- 67%
Edition September 2026. Download the data
Asked for real estate agencies in Brussels, ChatGPT, Claude and Gemini most often named Trevi (94% of answers), Latour & Petit (89%) and ERA (64%). Across 36 answers they named 23 different businesses, 8 of them only once. Each of four buyer questions was asked three times, in French, in September 2026.
The ranking
The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position |
|---|---|---|---|---|---|---|---|
| 1 | TreviAlso written TREVIIs this your business? | 95%: 82 to 99% | 100% | 83% | 100% | 4 of 4 | 1.4 |
| 2 | Latour & PetitIs this your business? | 95%: 75 to 96% | 83% | 83% | 100% | 4 of 4 | 3 |
| 3 | ERAAlso written ERA Belgium, ERA Belgique, ERA Immo, ERA Immobilière, ERA Châtelain, ERA Immo BruxellesIs this your business? | 95%: 48 to 78% | 8% | 83% | 100% | 4 of 4 | 2.9 |
| 4 | Century 21Also written Century 21 Belgique, Century 21 BruxellesIs this your business? | 95%: 45 to 75% | 0% | 83% | 100% | 4 of 4 | 3.2 |
| 5 | Engel & VölkersAlso written Engel & Völkers Brussels, Engel & Völkers BruxellesIs this your business? | 95%: 27 to 58% | 67% | 50% | 8% | 4 of 4 | 4.7 |
| 6 | Victoire PropertiesIs this your business? | 95%: 16 to 44% | 83% | 0% | 0% | 4 of 4 | 2.7 |
| 7 | Immo Real EstateIs this your business? | 95%: 6 to 29% | 0% | 0% | 42% | 3 of 4 | 5 |
| 8 | ImmobyIs this your business? | 95%: 4 to 25% | 0% | 33% | 0% | 3 of 4 | 3.8 |
| 9 | Immo DussartIs this your business? | 95%: 4 to 25% | 0% | 0% | 33% | 4 of 4 | 5 |
| 10 | Immo BrusselsIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 3.7 |
| 11 | We InvestIs this your business? | 95%: 3 to 22% | 0% | 0% | 25% | 2 of 4 | 5.7 |
| 12 | DewaeleAlso written Dewaele BruxellesIs this your business? | 95%: 3 to 22% | 0% | 25% | 0% | 2 of 4 | 7 |
| 13 | Immo VlassakIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 2 of 4 | 3 |
| 14 | Barnes BrusselsIs this your business? | 95%: 2 to 18% | 17% | 0% | 0% | 2 of 4 | 4 |
| 15 | Immo KayserIs this your business? | 95%: 2 to 18% | 0% | 17% | 0% | 2 of 4 | 4 |
Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 8 more names came up in a single answer and are counted above but not listed.
Is this your business?
See what the assistants say about your business today. The free checker asks ChatGPT, Claude, Gemini and Grok two of the Index questions for this category, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up.
What each assistant said
The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.
| # | ChatGPT | Claude | Gemini |
|---|---|---|---|
| 1 | Trevi100% | Trevi83% | Trevi100% |
| 2 | Latour & Petit83% | Latour & Petit83% | Latour & Petit100% |
| 3 | Victoire Properties83% | ERA83% | ERA100% |
| 4 | Engel & Völkers67% | Century 2183% | Century 21100% |
| 5 | Barnes Brussels17% | Engel & Völkers50% | Immo Real Estate42% |
Claude named no business in 2 of its 12 answers.
Named here? Put it on your site
Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.
<a href="https://aigrow.gg/index/real-estate-agencies/brussels"><img src="https://aigrow.gg/badges/index/2026-09/real-estate-agencies/brussels.svg" width="312" height="100" alt="Named by AI assistants: Real estate agencies in Brussels, AIGROW AI Visibility Index, September 2026"></a>The questions
Asked word for word, three times each, to every assistant, in French. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.
- 1Quelle est la meilleure agence immobilière à Bruxelles ?Who is the best real estate agency in Brussels?
- 2Je veux vendre ma maison à Bruxelles : tu me recommandes quelle agence immobilière ?I want to sell my home in Brussels. Which real estate agency would you recommend?
- 3Je cherche un appartement à acheter à Bruxelles : quels agents immobiliers tu me conseilles de contacter ?I'm looking for an apartment to buy in Brussels. Which real estate agents should I contact?
- 4Quelle agence immobilière à Bruxelles tu me recommandes pour mettre un appartement en location ?Which real estate agency in Brussels would you recommend for renting out an apartment?
How to read this page
- What it measures
- Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
- Why the ranges matter
- 36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
- One business, several spellings
- Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
- A name is wrong
- If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.
Where the assistants look
The sites read most often, with web search on, before the assistants answer about this category in Belgium. From the AI Source Map: 5 answers.
- immoweb.be
- Read in 80% of the answers
- zimmo.be
- Read in 80% of the answers
- reddit.com
- Read in 60% of the answers
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition September 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0