Harald Kaster | Cologne Sotheby's International Realty

This outstanding manor enjoys a prestigious setting above the left bank of the Rhine between Oberwinter and Remagen. Built between 1906 and 1908 as a private summer residence for...

Presented by Harald Kaster | Cologne Sotheby's International Realty

This property is located on a 2-hectare, partly wooded plot of land in a natural setting, which impresses with its high construction quality, exclusive materials and perfectly...

Presented by Harald Kaster | Cologne Sotheby's International Realty

Situated in the heart of an idyllic landscape, this elegant villa, built in 2003, rests on an impressive 8,497 m² plot with beautifully maintained grounds. Offering a living space...

Presented by Harald Kaster | Cologne Sotheby's International Realty

This extraordinary property uniquely combines historical charm, generous proportions, and a thoughtful architectural design offering flood protection—truly one of a kind in the...

Presented by Harald Kaster | Cologne Sotheby's International Realty

Architectural Masterpiece with Sustainable Elegance in Boppard Designed by renowned architect Udo Heimermann, this extraordinary residence in Boppard unites visionary design,...

Presented by Harald Kaster | Cologne Sotheby's International Realty

Built in 1906, this listed villa has been meticulously renovated and modernized between 2018 and 2022, with exceptional attention to detail. It is now in excellent condition,...

Presented by Harald Kaster | Cologne Sotheby's International Realty

Welcome to this exceptional Mediterranean-style estate with a spacious pond in a sought-after location in Sankt Augustin-Erlengrund. The property meets high standards, and the...

Presented by Harald Kaster | Cologne Sotheby's International Realty

These exceptional properties are located in a prime location in Cologne-Deckstein, at Keussenstrasse 1 and 3, one of the best addresses in the Rhine metropolis of Cologne. Due to...

Presented by Harald Kaster | Cologne Sotheby's International Realty