The poll result confirms a trend picked up earlier. The greens are firming support in spectacular fashion. Ecolo takes a 21.5% share, up 11% compared with 2014.
The socialists of PS are second on 19% and recover from recent poor performances in the polls. The figure is still 6% under 2014 levels.
The poll is a blow to Didier Reynders, Francophone liberal supremo in the capital. The Francophone liberals of MR lose nearly 8% in comparison with 2014 stranding on 15.5% in Brussels. This makes them the third party of Brussels.
The far left PTB picks up nearly 12% of votes in Brussels.
Among Flemish parties, the nationalist N-VA is the biggest on 4.2%.