Ernest Allardstraat 49
Address of a group of related companies
5 companies are registered here now and 3 of the 5 companies are tied to one another: most likely one group or family of companies. Tied by: 3 named Gfs. The building has about 10,400 m² of floor space, about 2,077 m² per company.
- 4 have their registered office here, 1 only an establishment or branch.
- None of the 5 companies here shares a current director with another.
- Half of the current companies have been registered here for less than 11 years.
What you can do with this
- Open the network from this address to see which directors connect the companies.
- Assess a company at this address together with its group: its dossier shows the structure and related companies.
- Filter the list below by outcome, or export all of it as CSV.
The building
cadastre and 3D survey- Footprint
- 3,045 m²
- measured, the ground under the building
- Floor area (estimate)
- ~10,400 m²
- 4 storeys, estimated from the building volume
- Per current company
- ~2,077 m²
- Height
- 18.3 metres
- Volume
- 31,154 m³
- Plot
- 4,747 m²
- ProtectedMonumentSint-Jan en Sint-Stefaan ter Minimenkerk
Buildings from the cadastre and the 3D survey (LiDAR), box numbers from the BEST address register, heritage from the regional registers. Who is registered here, not who owns it.
Registrations per year, and what became of them
Companies at this address
5 in total| Company | At this address | Outcome |
|---|---|---|
| Association Royale des Amis et Anciens de l'Athénée Robert Catteau
BE 0882.725.635 |
Registered office
since 07-2006 |
Active here |
| GFS Ecole Primaire Robert Catteau
BE 0670.487.160 |
Registered office
since 01-2017 |
Active here |
| GFS Secondaire Robert CATTEAU
BE 0644.425.537 |
Registered office
since 12-2015 |
Active here |
| GFS-Cours du Soir de Langues asbl
BE 0724.732.233 |
Registered office
since 04-2019 |
Active here |
| Stad Brussel
BE 0207.373.429 |
Establishment
since 01-2007 |
Active here |
What this check does and does not say
A shared address is not suspicious in itself: office buildings, accountants and business centres host many companies. The verdict says what kind of address this is, nothing about any individual company.
The comparison rests on all 1,408,687 active Belgian addresses: half have one company, 95% at most five, 99% at most ten, 99.9% at most 35. There is no national reference for bankruptcies and arrivals; they are shown here as counts.
A shared director is a current board mandate at two companies at this address; statutory auditors and liquidators do not count.
Floor area and storeys are not measured anywhere: the building shows them as estimates, next to the measured footprint. No register of building use (office, housing) is available.
Sources: KBO (companies, addresses, activities and legal situation), Belgian Official Gazette (judgments), BOSA BEST (addresses and box numbers), cadastre and 3D survey (parcels and buildings).
Source: KBO (Kruispuntbank van Ondernemingen) · Belgian Official Gazette · BOSA BEST · Cadastre/LiDAR. Last updated: 26-10-2026.