Ecoparc Windhof (Luxembourgish: Wandhaff) is a village in the south of the commune of Koerich in south-western Luxembourg. It lies on the N6 road from Luxembourg City to Arlon in Belgium. Although it was just a small collection of houses until about 20 years ago, it is now expanding rapidly as a business development area.
Ecoparc Windhof is located 15 km west of Luxembourg City at a strategic position for transport and communications on the N6 road from Luxembourg City to Arlon close to the busy European route E25 linking Luxembourg to Arlon and Brussels. It stands on the crossroads where the N6 intersects N13 to Koerich (north) and Dalhem (south). Windhof, at a height of 334 m, is the highest point in the vicinity.
The history of Windhof dates back to Roman times owing to its location on the Kiem or Roman road from Trier to Reims. Some years ago, a Roman milestone was found on the Kiem between Capellen and Windhof. The road was probably constructed in the 1st century BC but it became particularly important in the 3rd and 4th centuries when Trier developed as an imperial residence.
A map from 1778 refers to today's Windhof as Koericher Heyde
The main road from Luxembourg to Arlon, now N6 or the Route d'Arlon was built in 1790, slightly to the north of the Roman road. It was here that the first houses appeared in Windhof. American troops, liberating Luxembourg in September 1944, proceeded through Windhof towards Arlon along this road which became known as the Voie de la Liberté.