General

The Efficiency House is a key standard that defines the energy efficiency of residential buildings in comparison to a reference building. Two important key figures play a role here: the total energy requirement of the building and the quality of the thermal insulation. These criteria can be used to assess a building in concrete terms. Particularly worth mentioning is the efficiency house level 40, which...

Landlords must provide their tenants with clear rent increase declarations. They must also provide information on the use of third-party funds. This is the result of a ruling by the Federal Court of Justice (AZ: VIII ZR 416/21). In the case in question, a landlord had sent a tenant a declaration of rent increase, but did not refer to the use of third-party funds in this...

According to the German Furniture Quality Association (DGM), box spring systems are also becoming increasingly popular in the living room. Jochen Winning, Managing Director of the DGM, emphasizes that box spring sofas offer the same comfort as their bed-based counterparts. The structure of such a sofa is similar to that of a bed: a spring box as a base, with a cushion on top, possibly supplemented by another mattress.

Saxony-Anhalt, Saxony and Thuringia have the highest rental yields in Germany (Q2/2023). In terms of rental yields for existing apartments, Anhalt-Bitterfeld (Saxony-Anhalt) and Gera (Thuringia) are at the top with 5.4 percent. According to an analysis by ImmoScout24, rental yields in the major metropolitan areas, on the other hand, are between 2 and 3 percent for...

The conversion of basement rooms for residential purposes may require planning permission. This is emphasized by the Association of Private Builders (VPB). This is because it is a so-called change of use if homeowners want to turn their basement storage room into a separate apartment. In most cases, this change requires official approval. The respective state building regulations...

With its climate protection measures to date, Germany is missing its target of reducing greenhouse gas emissions by 65% by 2030 compared to 1990. Instead, the country has only achieved a reduction of 63 percent. This means that Germany has a discrepancy of 331 million tons of greenhouse gases compared to the Federal Climate Protection Act. However, there is an opportunity to close this...

The placement of an ATM on a public sidewalk does not have to be approved. This was decided by the Berlin Administrative Court (VG 1 K 342.18 and VG 1 K 98.19). A company that operates ATMs throughout Germany had installed an ATM in front of an apartment building in Prenzlauer Berg. This was prohibited by the Pankow district authority due to the lack of a special...

The cartographers at Ruhr-Universität Bochum use virtual reality (a so-called "Unity" game engine) to recreate urban scenarios in 3D and highlight possible structural effects. Julian Keil and Marco Weißmann from Prof. Dr. Frank Dickmann's team have developed a kind of innovative laboratory construction kit for this purpose, which creates virtual replicas of traffic and the...

Female homeowners enjoy a financial advantage with consumer loans and pay less for them than those without a home. They only paid 6.26 percent interest on these loans, while the interest rate for other borrowers was 7.47 percent. This is the result of a study by Check24. Dr. Stefan Eckhardt from CHECK24 emphasizes that homeowners have a better chance of...

As part of the "DGNB Sustainability Challenge 2023", the German Sustainable Building Council (DGNB) has recognized outstanding players in sustainable construction. Smarter Habitat impressed with "ecoHab", a building panel made from popcorn. The company STRAMEN.TEC scored with a dry construction system made from straw. The Technical University of Berlin impressed with a sustainable rental apartment building made of wood, brick...