[2] With ten streets converging there, the Place Flagey is one of the best connected crossroads in the city, directly adjacent to the neighbouring Ixelles Ponds.

[3] The square was renamed in 1937 by Eugène Flagey [fr], a Belgian lawyer and politician[4] who served as mayor of Ixelles from 1935 to 1956.

The ensemble, although built in nearly thirty years in post-war functionalist style, displays a great homogeneity.

Each building has a similar height, a yellow brick façade, a commercial ground floor surmounted by a mezzanine and crowned with a concrete awning, as well as a roof terrace.

These latter elements give the set almost continuous horizontal lines, but each building nevertheless retains its architectural specificities.

[3] On 18 December 1957, the first self-service store in Belgium, by the Delhaize brothers, opened on the square, across from the Flagey Building.

[13] A large flood control reservoir for storm water (necessary due to the low-lying terrain and high groundwater level) has also been built under the square.