No, "dense housing" is code for multistory buildings in a mixed-use neighborhood (like you already find in many parts of the city!). It doesn't matter very much

No, "dense housing" is code for multistory buildings in a mixed-use neighborhood (like you already find in many parts of the city!). It doesn't matter very much whether those apartments are 30 or 200m^2, the density is several times better than in a neighborhood of single family homes as you find them just a few km outside of Berlin's city center.