The particular configuration of the buildings that make up the new residential blocks near Montsouris Park allows for the creation of veritable green rooms, areas at a remove from the surrounding urban and railway commotion.

Lush gardens visible down alleyways are set up in the interior of these urban blocks. Spreading along the sidewalks around the site's entrance, hornbeam trees signal the discrete existence of the gardens within, while the tall stalks of white wisteria and clematis accentuate the presence of plant life within the public space.

Stone walkways traverse the gardens. In the hollows of buildings, the projection of paving slab partially covering the site results in a dual topography, giving rise to a differentiated plant treatment in accordance with whether the surface is mostly soil or concrete. In the lower garden, with a thick soil surface, two large maple trees provide shade for a spacious lawn. Ivy then spreads over the retaining walls, coming to cover the ground of the upper garden. Smaller deciduous trees, diverse varieties of azalea, camellia, and magnolia, are densely planted here in the thin layer of top soil.