The estate is located in the commune of Unterretzbach near Retz in the Lower Austrian wine-growing region Weinviertel
, The name, which has been valid since 2003, is derived from the "sun hill" wine of several varieties, which was bottled for the first time by the grandfather of the current owner. The company is now managed by Christoph Schleinzer. A "Heuriger Sonnenhügel" is connected. The white varieties Grüner Veltliner, Welschriesling, Pinot Blanc, Chardonnay, Riesling, Gelber Muskateller and Sauvignon Blanc, as well as the red varieties Zweigelt and Blauburger are cultivated and processed. Count among the premium wines and GV Altenberg (both Grüner Veltliner) and the red wine "Baldur" (Zweigelt).