Construction begins
October 2025
Your apartment at
Belval - Square Mile
Idesya, an architecturally unique residence in the heart of Belval
Scheduled delivery
Early 2028
A mixed-use development
designed for well-being
Located in Belval's dynamic Square Mile district, Idesya is a new high-end residence offering 129 bright, elegant apartments in 3 separate buildings. Each building has its own independent entrance, yet is connected to a shared central core, the heart of the project.
The apartments, from studios to 4-bedrooms, are designed with particular attention to the quality of materials, natural light and the well-being of occupants. Thanks to a unique architectural facade, each apartment benefits from private balconies and loggias, true outdoor extensions that offer a feeling of space and freedom in everyday life.
Idesya also includes :
- Ground-floor shops to simplify everyday life;
- Communal areas and exclusive services at the heart of the building: hanging gardens, participative concierge service, reception room, tiered communal space and courtesy accommodation.
- An underground parking lot with 154 parking spaces for residents;
- Personalized support throughout your project.
You'll love living together, freely
Living spaces to suit every need
Idesya incorporates high-quality common areas to encourage people to get together and create a real neighborhood dynamic.
Tiered staircases with projection capability
Tiered staircases with projection capability
Courtesy accommodation
Courtesy accommodation
Bicycle repair workshop with free access to tools
Bicycle repair workshop with free access to tools
Hanging gardens, a peaceful place to relax
Hanging gardens, a peaceful place to relax
Private reception room
Private reception room
A mixed-use development
designed for well-being
Idesya, a residence designed for all lifestyles
Developed by Eiffage Real Estate Luxembourg(and architects Dietrich | Untertrierfaller and BFF..., the project rests on three pillars:
A secure, elegant, comfortable and intimate living environment
Services to simplify everyday life
Shared spaces to foster social ties
A living environment designed for your comfort
Architecture open to the outside, absolute comfort inside.
With Idesya, architecture goes far beyond mere aesthetics: it transforms the experience of everyday life. Thanks to its unique, differentiating façade, each apartment benefits from private, wrap-around balconies. This innovative design blurs the boundary between inside and outside, offering residents a sense of openness and freedom unheard of in an urban environment.
This innovative architectural concept offers several advantages:
- Optimized luminosity, with living spaces bathed in natural light.
- Privacy preserved, with each apartment enjoying its own private outdoor space.
- A seamless connection with the urban environment, while retaining the comfort and elegance of an indoor cocoon.

Reciprocity
A 150 m² concierge service, managed by Récipro-Cité, to create a real neighborhood dynamic.
Designed to make daily life easier and strengthen ties between neighbors, this space is run by a manager-animator and offers :
- Free services to simplify everyday life,
- Collaborative services to encourage residents to help each other,
- Additional paid services tailored to individual needs.
The plus : For 2 years, Eiffage Real Estate takes charge of the manager-animator to initiate this model of living together and guarantee its success from the outset.
You'll love living in Belval, a neighborhood that grows with you
An ideal setting for families, young professionals and students
Located on a former steelworks site that has been rehabilitated as a cultural and economic hub, Belval combines its industrial heritage with a modern, sustainable vision.
An environment designed for well-being
Belval is designed to offer a pleasant living environment with green spaces, leisure facilities and infrastructures adapted to residents' needs.
You'll love making Idesya
your new Belval address!
A majestic lobby and common areas designed for well-being
Right from the entrance, each building welcomes its residents with a spacious, elegant lobby, designed to offer a first impression in keeping with Idesya's high standards. A central lobby and reception area provide seamless access to the various common areas on the upper levels.
While each building has its own independent entrance, shared spaces are grouped together in the corner of Building B, the heart of the project. Here, residents will find a selection of services designed to enhance their daily lives:
- Hanging gardens, green havens in the heart of the city.
- A participative concierge service, promoting mutual aid and local services.
- Courtesy accommodation, ideal for welcoming family and friends with peace of mind.
- A communal laundry room, combining practicality and space-saving features within the apartments.
Idesya rethinks the residential experience with centralized, optimized common spaces, while preserving the privacy and independence of each building.
You'll love going green
A sustainable, connected development model
A green and dynamic city
Surrounded by an 8-hectare park, Belval combines modern housing, economic infrastructure and leisure activities:
- Henri Schmitz sports center, mini soccer pitch, skate park and playgrounds
- Rockhal concert hall, Kinepolis cinema, sports facilities
- Local shops, restaurants and services
Optimum accessibility
- 21 km from Luxembourg City, with fast train and bus connections
- A well-developed cycling and pedestrian network, ideal for soft mobility
- The Vëlodukt, a 2 km overhead bicycle path linking Belval to Esch-sur-Alzette
- The imminent arrival of the tramway, which will make the district even more accessible.
Idesya, a residence that rhymes with elegance and conviviality
A strategic location and bold architecture
Just a stone's throw from Um Belval park, Idesya overlooks Place des Bassins, a tree-lined area designed by DUA and BFF...
A tribute to Belval's industrial past, with bronze-colored metal facades that combine modern aesthetics with energy efficiency.

Why
choose Idesya?
- A strategic location at the heart of the Belval urban, economic and educational hub
- Modern, sustainable architecture
- Spaces and services designed for everyday life
- A long-term investment in a booming neighborhood
Contact us today for more information and a personalized tour!