Bouwmogelijkheden Brussel

Parcel data in Brussels: what you need to know

Brussels parcel data is managed by the federal Cadastre (part of the FOD Financiën) and is partly viewable via MyMinFin (myminfin.be). The Brussels Regional Informatics Centre (BRIC) provides additional geodata via the Urban Data Platform Brussels.

1. Two languages, distinct regulations

Brussels is bilingual. Permit applications are handled by Urban Brussels (the Brussels Regional Directorate-General for Urban Planning), which works with the PRAS (Plan Régional d'Affectation du Sol / Regional Land Use Plan). Each of the 19 municipalities also has its own municipal plan (PPAS/BBP) that can supplement but not contradict the regional rules.

2. The PRAS: what is allowed where?

The PRAS divides Brussels into zones with their own designations and building volumes. The most relevant zones for owners:

• ✓Residential zone (Zone d'Habitation): maximum building density and building lines are fixed per neighbourhood. Extensions and roof additions are possible but almost always require an urban planning permit
• ✓Mixed zone (Zone Mixte): residential and small-scale commercial use permitted. Building options are broader but also more complex to calculate
• ✓Green zone (Zone Verte): construction heavily restricted. Garden sheds are generally not permitted or limited to very small structures

3. Protected heritage in Brussels

Brussels has a high density of protected monuments and townscapes — from the Grand Place to the Art Nouveau neighbourhoods (Ixelles, Etterbeek, Saint-Gilles). For a protected building or a plot near a monument, a mandatory prior consultation with the Brussels Heritage Agency (heritage.brussels) applies.

4. Permit-free building in Brussels

Brussels has different exemption thresholds than the Netherlands and Flanders:

• ✓Garden shed: up to 9 m² and max 3 metres high — exempt from permit in the rear yard
• ✓Rear extension: up to 3 metres deep and ground floor height — exempt provided no street-facing façade is altered
• ✓Solar panels: on sloped roofs exempt if they do not protrude above the roof surface; on flat roofs always exempt
• ✓Fencing: up to 2 metres high in the rear yard exempt; street-side fencing requires a permit

For any renovation, consult Urban Brussels' Urban Planning Information Centre or the e-portal (urban.brussels) for the current rules for your address.