Vienna is a city where almost 80% of the housing stock consists of old buildings constructed before 1953. For people planning to buy or rent an apartment, the choice between a classic Altbau with high ceilings and a modern Neubau with energy-efficient technologies becomes a real dilemma. In 2025, the average price per square meter in Vienna ranges from 5,000 to 7,000 euros depending on the building type, location, and condition of the property, and the difference in monthly heating costs between old and new housing can reach several hundred euros. This guide will help you understand all the details and make an informed decision.
What Are Altbau and Neubau Under Austrian Law
According to the Mietrechtsgesetz (MRG), Altbau is a building for which the construction permit was issued before July 1, 1953. This date is of fundamental importance, as it determines whether the apartment falls under the full scope of the rental law with regulated rent. Typical Altbau includes the famous Viennese Gründerzeithäuser — buildings from the Gründerzeit era of the late 19th and early 20th centuries, which are distinguished by ceilings 3-4 meters high, herringbone parquet floors, stucco moldings, and monumental facades. The largest number of such buildings has been preserved in the central districts:
- Josefstadt (8th district)
- Wieden (4th district)
- Landstraße (3rd district)
- Innere Stadt (1st district)
- Leopoldstadt (2nd district)
- Alsergrund (9th district)
Neubau in the context of the Viennese real estate market refers to buildings constructed after 1953, although in the practice of developers and investors, this term usually means properties built in the last 20 years. Modern new buildings are constructed mainly in the outer districts of the city, such as Donaustadt (22nd district) or Floridsdorf (21st district), where there are vacant land plots for large-scale construction. In 2025-2026, approximately 5,000 new apartments are planned for completion in Vienna, with more than half of the projects having Green Building certification.
Prices and Investment Appeal
The price dynamics of Altbau and Neubau in Vienna are developing differently. According to Statistik Austria, the average cost per square meter in old housing stock is 5,000-6,500 euros, while new buildings cost from 6,000 to 9,000 euros depending on the location. Paradoxically, renovated housing in Altbau with a Dachgeschoss (an added attic floor) often exceeds the price of neighboring new buildings — such properties in central districts can cost 10,000-12,000 euros per square meter.
For an investor, the key factor is yield. Altbau in central Vienna provides stable demand among tenants who value the atmosphere and location, but the rental rate is limited by law. The Richtwertmietzins in Vienna as of 2025 is 6.67 euros per square meter for the base rate, to which surcharges are added for the building’s condition, floor, and apartment features. Neubau is not subject to these restrictions, so the owner can set a market rental rate, which in new projects reaches 13-16 euros per square meter in peripheral districts and up to 25 euros in the center. At the same time, from 2026, a new Mietpreisbremse comes into effect, which limits the indexation of even free rental rates to 3% plus half of inflation above this level. Read more about the rental legislation reform in our article.
Energy Efficiency and Operating Costs
New buildings in Vienna are significantly more energy-efficient than Altbau, so heating costs there are noticeably lower. In old buildings that have not undergone thermal modernization, heat is retained worse — walls, windows, and ceilings often have weaker insulation. Because of this, more energy is needed to heat the apartment, which means higher bills. Neubau uses modern thermal insulation standards and energy-saving technologies. Such buildings consume several times less energy for heating. Passive houses are even more economical. An apartment of the same size in a new building may require several times less energy for heating than in an old building. This directly affects monthly expenses.
At current gas and electricity prices, annual savings can amount to 800-1,500 euros, which is a significant argument in favor of new housing. However, a well-renovated Altbau with new windows, an insulated facade, and a modern heating system can achieve energy classes B or C, approaching the performance of new buildings. When buying, be sure to request an Energieausweis — a fine of up to 1,450 euros is provided for its absence, and for you, this is the only way to objectively assess future utility costs. Read more about additional costs when buying property in our separate article.
Rental Legal Framework: MRG and the Free Market
The legal status of an apartment significantly affects the conditions for both the tenant and the landlord. Altbau built before 1953 falls under the full scope of the Mietrechtsgesetz, which means regulated rent (Richtwertmietzins), limited possibilities for the owner to terminate the contract, and strict rules regarding rent increases. For the tenant, this is protection against a sharp increase in costs: Richtwert indexation in 2026 is limited to only 1%, and in 2027 — 2%. The landlord, in turn, receives lower yields but a stable long-term tenant.
Neubau usually falls under partial application of MRG or is completely excluded from its scope if the building was constructed without state funding after 1953. This allows the owner to set a free rental rate (freier Mietzins), however, from 2026, indexation restrictions will also apply to such contracts. A separate case is apartments created through Dachgeschoss construction (Dachgeschossausbau) with a permit after 2001: they also belong to the Teilanwendungsbereich regardless of the age of the building itself. Before signing a contract, we recommend checking the apartment’s status in the Grundbuch.
Quality of Life and Infrastructure
Altbau offers what cannot be replicated in a new building: authentic atmosphere, high ceilings (3-3.5 meters compared to the standard 2.5 in Neubau), natural lighting thanks to large windows, and location in historic neighborhoods with developed infrastructure. A walk to the nearest café, market, or metro station in central districts takes just a few minutes. However, old buildings also have disadvantages: no elevator (in most Altbau up to 5 floors), limited parking options, potential soundproofing issues, and outdated utilities.
Neubau compensates for the distance from the center with modern comfort: elevators, underground parking, bicycle rooms, playgrounds, sometimes fitness areas and co-working spaces for residents. New residential complexes in areas like Seestadt Aspern or Sonnwendviertel are designed as self-sufficient neighborhoods with shops, schools, and green areas. For families with children or people who work remotely, this can be a decisive argument. At the same time, new neighborhoods need time to acquire the character and soul for which Vienna’s historic quarters are famous.
Conclusion
The choice between Altbau and Neubau depends on your priorities: atmosphere and location versus comfort and energy efficiency, regulated rent versus free market, historic charm versus modern technology. For investors, Neubau offers higher yields and predictable costs, while Altbau in the center provides stable demand and potential for value growth. We have compiled a comparison table so you can choose the best option for yourself:
| Criterion | Altbau (before 1953) | Neubau (after 1953) |
|---|---|---|
| Price per m² | 5,000 – 6,500 € | 6,000 – 9,000 € |
| Typical location | Central districts (1-9, 18, 19) | Outer districts (10, 21, 22, 23) |
| Ceiling height | 3.0 – 3.5 m | 2.5 – 2.7 m |
| Energy efficiency (HWB) | 100–200 kWh/m² (class D-G) | 30–50 kWh/m² (class A-B) |
| Heating costs (80 m²/year) | 1,000 – 1,500 € | 400 – 600 € |
| Rental legal framework | Full MRG application (Richtwertmietzins) | Partial MRG application or free market |
| Rental rate (net) | 6.67 €/m² + surcharges ≈ 10–12 €/m² | Free: 13–25 €/m² |
| Rent indexation 2026 | Max. 1% | Max. 3% + 50% above |
| Elevator | Rare (up to 5 floors) | Yes, always |
| Parking | Limited (street) | Underground garage |
| Infrastructure | Developed (metro, shops, schools) | Developing (new neighborhoods) |
| Atmosphere | Historic charm, stucco moldings, parquet | Modern minimalism |
| Best suited for | Those who value location and atmosphere, tenants | Families with children, investors |
| Investment yield | Lower (limited rental rate) | Higher (free market) |
If you are looking for the optimal option for your specific situation, contact VigoImmobilien — we will help you find an apartment that meets your needs and budget.
