
Ramatuelle, 83350
6 Bedrooms - 506 m2 inside
15 900 000 €
Read more825 000 €
Boulogne-Billancourt, 92100
825 000 €
Boulogne-Billancourt, 92100
EXCLUSIVITY BONAPARTE - Located on rue de Billancourt, just steps from the Passages, Saint François d’Assise School, Léon Blum Square, and all amenities, a duplex of 76.82m2 Carrez (120.61m2 on the ground), within a characterful co-ownership dating from the 1910s, on the 4th and top floor without elevator. The apartment has been completely renovated by an architect, offering atypical volumes and a unique charm under the roofs with an unobstructed view of Boulogne.
The entrance leads to a first level perfectly optimized.
On one side, the living room of nearly 36m2, bathed in light thanks to its east exposure and unobstructed view. The space is perfectly designed with a kitchen-dining area and a lounge area. The modern spirit offered by the open kitchen, the custom bookshelf, and the wrought iron staircase perfectly match the charm of the old apartment.
On the other side of this level, there is the children’s sleeping area including two bedrooms of 13.06 m2 and 6.40 m2, the latter can easily serve as a children’s room or an office.
A bathroom of 3.15 m2 completes this level.
From the living room, the wrought iron staircase leads to the upper floor hosting a master suite under the roofs, hidden from view.
Here, the floor space is significantly larger than the Carrez surface, offering a real feeling of cocooning under the roofs. Thanks to the mansard volumes, many custom storage spaces have been created. An adjoining bathroom completes this floor, forming an intimate and warm space.
The entire apartment benefits from a complete quality renovation, subtly blending the charm of the old (parquet, volumes under the attics) and contemporary features.
Unique atmosphere between family apartment and house under the roofs.
Property subject to co-ownership regime.
Carrez surface: 76.82 m2
Additional ground surface: 43.79 m2
DPE: E (293) – GES: C (11)
Metro line 10 (Jean Jaurès) 450m away
Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr
Les informations sur les risques auxquels ce bien est exposé sont disponibles sur le site Géorisques : www.georisques.gouv.fr
154 kWhEF/m².an (Energie finale)
Diagnostic réalisé le 21 janvier 2026
Montant estimé des dépenses annuelles d'énergie pour un usage standard :
Entre 2070 € et 2850 € par an
Prix moyens des énergies indexés au 1er janvier 2021 (abonnement compris)
LAETITIA PONROY will personally respond to your request send him an email
Call us: +33 (0)6 43 39 27 42


















6 Bedrooms - 506 m2 inside
15 900 000 €
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5 Bedrooms - 324 m2 inside
14 880 000 €
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44 Bedrooms - 5000 m2 inside
13 000 000 €
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EXCLUSIVITY BONAPARTE - Located on rue de Billancourt, just steps from the Passages, Saint François d’Assise School, Léon Blum Square, and all amenities, a duplex of 76.82m2 Carrez (120.61m2 on the ground), within a characterful co-ownership dating from the 1910s, on the 4th and top floor without elevator. The apartment has been completely renovated by an architect, offering atypical volumes and a unique charm under the roofs with an unobstructed view of Boulogne.
The entrance leads to a first level perfectly optimized.
On one side, the living room of nearly 36m2, bathed in light thanks to its east exposure and unobstructed view. The space is perfectly designed with a kitchen-dining area and a lounge area. The modern spirit offered by the open kitchen, the custom bookshelf, and the wrought iron staircase perfectly match the charm of the old apartment.
On the other side of this level, there is the children’s sleeping area including two bedrooms of 13.06 m2 and 6.40 m2, the latter can easily serve as a children’s room or an office.
A bathroom of 3.15 m2 completes this level.
From the living room, the wrought iron staircase leads to the upper floor hosting a master suite under the roofs, hidden from view.
Here, the floor space is significantly larger than the Carrez surface, offering a real feeling of cocooning under the roofs. Thanks to the mansard volumes, many custom storage spaces have been created. An adjoining bathroom completes this floor, forming an intimate and warm space.
The entire apartment benefits from a complete quality renovation, subtly blending the charm of the old (parquet, volumes under the attics) and contemporary features.
Unique atmosphere between family apartment and house under the roofs.
Property subject to co-ownership regime.
Carrez surface: 76.82 m2
Additional ground surface: 43.79 m2
DPE: E (293) – GES: C (11)
Metro line 10 (Jean Jaurès) 450m away
Information on the risks to which this property is exposed is available on the Géorisques website: www.georisques.gouv.fr

Les informations sur les risques auxquels ce bien est exposé sont disponibles sur le site Géorisques : www.georisques.gouv.fr
154 kWhEF/m².an (Energie finale)
Diagnostic réalisé le 21 janvier 2026
Montant estimé des dépenses annuelles d'énergie pour un usage standard :
Entre 2070 € et 2850 € par an
Prix moyens des énergies indexés au 1er janvier 2021 (abonnement compris)
825 000 €








LAETITIA PONROY
+33 (0)6 43 39 27 42
l.ponroy@bonaparte-artdevivre.com
https://laetitiaponroy.com/
Non inclus dans le prix : frais de notaire (droits d’enregistrement). Document non contractuel établi d’après indications fournies par le propriétaire, il est fourni à titre indicatif sous réserve de confirmation des informations par documents administratifs ou contractuels respectifs, il ne saurait engager notre responsabilité.