24.03.2026

A major new urban development project in Strassen, led by the developers of « Les Jardins de Luxembourg »

HERITAGE : a new urban benchmark for Strassen on two distinct sites

Located on two strategic sites along the Route d’Arlon, HERITAGE continues the values that made « Les Jardins de Luxembourg » successful: a qualitative approach, long-term vision, high construction standards and a constant commitment to sustainability. The project aims to create two human-scale neighbourhoods combining housing, retail, offices and large green areas in order to meet the needs of residents, investors and local stakeholders.

KIEM offers a balanced development integrated into an existing and dynamic urban environment.

  • 5.700 m² of apartments distributed across three buildings.
  • 1.900 m² dedicated to offices and retail on the ground floor.
  • 9 building plots for single-family houses, free of construction contract.

Designed as a modern living space, KIEM prioritises accessibility, proximity and the harmonious integration between residential functions and economic activities.

With a remarkable surface area of 33,000 m², GAASCHTBIERG represents one of the most significant developments in Strassen :

  • 21.000 m² of apartments distributed across five buildings.
  • 6.500 m² of mixed-use surfaces dedicated to offices and activities.
  • 2.000 m² of retail space on the ground floor.
  • 15 building plots for single-family houses, free of construction contract.
  • 1 green zone ensuring a peaceful and high-quality living environment.

GAASCHTBIERG stands out for its optimized density, generous greenery, and a subtle balance between residential living, services, and natural spaces.

A strategic positioning in a rapidly evolving municipality.

Strassen is today one of the most sought-after municipalities in Luxembourg, benefiting from immediate proximity to the capital, a dynamic commercial environment and modernised infrastructures. HERITAGE aims to support this evolution by expanding and modernising the supply of housing, offices and retail spaces while strengthening the attractiveness of the area and the quality of life of its residents.

A project designed to last

HERITAGE is based on a clear vision: building reliable and sustainable neighborhoods supported by experienced actors. « Les Jardins de Luxembourg » (owned by the investment fund Prime Properties) provides a solid financial structure and a reassuring acquisition model for buyers, allowing investments to follow the real progress of construction works.

First « Signature » Building as a proof of concept

Between Route d’Arlon and Rue du Kiem, the first HERITAGE building will serve as a concrete demonstration of the standards upheld by the project. This 1,500 m² « Signature » building will combine high energy performance, optimised layouts, contemporary design, carefully designed shared spaces, and harmonious landscape integration.

This first milestone, conceived as a true statement of quality, will set the tone for the entire development and embody the ambitions of the project.

A project of continuity and renewal

Through KIEM and GAASCHTBIERG, the team behind « Les Jardins de Luxembourg » reaffirms its ability to carry out large-scale, human and sustainable projects. HERITAGE represents both the legacy of a know-how mastered over two decades and the desire to build differently, with responsibility and vision, the Luxembourg of tomorrow.

Prime Properties
Business Center Les Jardins de Luxembourg 27B, Bd. Marcel Cahen
L – 1311 Luxembourg


Tel: (+352) 26 38 94 68
Mail: info@heritagebyjdl.lu
www.HeritageByJDL.lu