At numbers 4 and 6 of the avenue, the twin building’s façade, edified in 1907, wider than it is tall, evokes a palatial extension rather than Haussmannian-like heft.
On the ground floor, on either side of a median axis, there is a pair of monumental semi-circular wrought-iron double doors and, on the upper floors, two symmetrical rows of tall windows; a colossal order, which punctuates the four levels of the building with engaged columns and wide pilasters; decorative features elegantly adorned with Louis XVI-style ornamental motifs: Neoclassical architecture shines here in all its glory.

An entrance hall brilliantly illustrating the ornamental repertory of the end of the 18th century, leads to a wide staircase with marble steps and a balustrade.
The flat on the first floor, which is accessible via the staircase or a lift, has 252 m2 and a floor-to-ceiling height of 3.20 metres. With an east-west dual-aspect, it benefits from generous light all day long. A double antechamber precedes the reception spaces with a surface area of nearly 120 m2: this succession of three living spaces, more harmonious than it is imposing, unfolds from the wide casement window, which overlooks the avenue, and extends until the one that opens onto a balcony looking out over the Champ-de-Mars. The elegantly refined décor of this triple reception room comes from the classical ornamental repertory: wainscoting and moulded cymatium, marble fireplaces and their trumeau mirrors, cornices with modillions, small-paned French doors, lintels decorated with bas-relief trophies of arms or acanthus scrolls. Surrounding this vast triptych, which strongly structures the premises, are five bedrooms, including the parental suite, with a luxurious bathroom – both generously illuminated via a French door overlooking the park. The kitchen and its pantry are also commensurate with this prestigious flat. Lastly, a studio flat and two cellars complete the property.