Abandoned and dilapidated existing buildings, especially in the case of cultural heritage buildings, are important to reconstruct and, if necessary, convert, in order to reuse them. This is the reason why the thesis is about the architectural design proposal for interventions in a cultural heritage building by combining modern technologies and sustainable design during construction, while preserving the visual identity of the historic building. The proposed solution is elaborated in the textual and graphical part. The thesis describes and illustrates the existing state of the rural household which consists of a residential house along with a stable, which is the subject of conversion. The house is located in the settlement Gorenja Vas, at the address Gorenja vas 9, Slovenia, where Slovenian poet Miha Kastelic was born. This is the reason for the household being included in the protected heritage. The complex is located in a rural area in the central part of Slovenia, which belongs to the Ivančna Gorica municipality in the Dolenjska region. The rural household was built in the 19th century, therefore, the paper describes the traditional way of building construction in that period. The future state of the building is given a conceptual solution for reconstruction and conversion, utilizing the potential of the building, while respecting the requirements for preserving the cultural heritage from decay, thus, enabling its further use. The idea is followed of preserving and converting the auxiliary building of the rural household, that is, the stable, into "Hotel Baština". Minimal changes have been made to the building, with adherence to the appropriate building conditions, during its reconstruction.