
Kasteeldomein Hardelingen is a 19th-20th century country estate spanning approximately 40 hectares in Bilzen-Hoeselt, Limburg, Belgium. The property originated as a farm acquired in 1798 by Georges Schaetzen, and following an 1841 fire, evolved into a family country residence. Major development occurred around 1881 under Oscar-Joseph de Schaetzen, when the house was enlarged and a landscape park established. The manor combines classical design with practical additions from 1927, featuring rectangular windows and a stone-clad entrance. The expansive park contains formal gardens near the house, recreational areas, and a natural woodland park with pronounced relief and numerous springs. Notable heritage trees include champion specimens of sweet chestnut and grey poplar. Designated protected architectural heritage since 2018.