Apartment with underfloor heating and photovoltaic

In a mature Vienna residential environment, a compactly structured housing project with only four units was realized, intentionally standing out from traditional new builds and focused on sustainability, efficiency and long-term living quality.

The building was constructed in solid, medium-heavy construction and meets the current requirements for energy efficiency and building physics. The high-quality building envelope with an average U-value of around 0.27 W/m²K ensures efficient thermal performance and significantly contributes to reducing energy demand.

Heating is provided by a central air-to-water heat pump, which operates in monovalent mode and thus uses no fossil energy sources. The system achieves an annual performance factor of around 3,4 and thus provides an efficient and economical solution for heating and domestic hot water.

Heat is delivered via a floor heating system, which, at low supply temperatures, ensures a comfortable room climate and uniform heat distribution. In addition, underfloor cooling is integrated, which provides extra living comfort, especially in the summer months.

Domestic hot water preparation is provided centrally via the heating system using a correspondingly sized storage.

To support the energy supply, a photovoltaic system is installed, oriented to both street and garden sides, with a total output of around 8 kW. This contributes to reducing external energy input and thus ongoing operating costs.

The building achieves very good energy indicators:

• Heating energy demand (HWB): ca. 33 kWh/m²a
• Total energy efficiency factor (fGEE): ca. 0,70
• Energy class: A++ in the area of primary energy and CO₂

These values underline the high energy efficiency and future security of the project.

• high-quality plastic windows (e.g., Internorm)
• classic window ventilation (low maintenance and cost-efficient)
• individual consumption monitoring for heating and hot water
• central, efficiently designed building services

The intentionally small number of units ensures a quiet, manageable living environment with a high degree of privacy. At the same time, the compact structure enables efficient management and a long-term stable operating cost base.

The project targets buyers who seek a well-considered combination of modern technology, functional architecture and sustainable construction, while placing particular value on quality and durability.

This apartment convinces with an efficiently structured living area of approx. 62,03 m² and presents a well-thought combination of compact size, functional layout and modern building technology. The central living area is designed as an open kitchen-living area and forms the heart of the unit. The clear room structure allows flexible furnishing and creates a pleasant, open living atmosphere. Thanks to the compact organization, there are no unnecessary circulation areas, so the entire living area is used optimally. The separately arranged bedroom provides a clear separation between living and sleeping areas and enables functional use with ample space for bed and storage. The bathroom is efficiently planned and integrated into the overall concept, while the entrance area ensures a structured access to the apartment.

The apartment is part of a building with a modern, central energy concept: heating via air/water heat pump; heat delivery via underfloor heating; additional underfloor cooling for increased comfort in summer; central hot water preparation; support by photovoltaic system. This combination enables a balanced room climate, high energy efficiency and long-term low operating costs. The billing of heating and hot water is done according to consumption via separate metering, ensuring a transparent cost structure.

The apartment is located in a building with very good energy indicators: Heating energy demand: ca. 33 kWh/m²a; Total energy efficiency factor: ca. 0,70; Energy class: A++ (Primary energy & CO₂). The construction method as a solid, medium-heavy building and the high-quality building envelope ensure sustainable and economical use.

Living area: ca. 62,03 m²; Open-plan kitchen as central living area; 1 bedroom; Bathroom; Entrance area.

The apartment is ideal for singles, couples or as an investment property and appeals especially to buyers who seek an efficient, well-structured unit with modern technology and long-term value retention. The combination of compact size, clear room layout and sustainable energy concept makes this unit a functionally and economically convincing living solution within a small, high-quality overall project.

We would like to point out that there is a familial or economic close relationship between the broker and the third party to be mediated.

The broker acts as a dual agent.

Infrastructure / Distances

Health

• Doctor <500m
• Pharmacy <500m
• Clinic <1.500m
• Hospital <2.000m

Children & Schools

• School <500m
• Kindergarten <500m
• University <2.500m
• Higher School <3.000m

Local amenities

• Supermarket <500m
• Bakery <500m
• Shopping center <2.500m

Other

• Cash machine <1.000m
• Bank <1.000m
• Post office <1.000m
• Police <1.000m

Traffic

• Bus <500m
• Subway <2.000m
• Tram <500m
• Train station <1.500m
• Motorway access <2.000m

Distance as the crow flies / Source: OpenStreetMap