A total of 313 houses were built as an extension of the existing estate, based on plans by Ernst May and Herbert Boehm. These comprised detached, semi-detached, and multi-family houses.
The central axis is Lassallestraße, from which the surrounding streets branch off to the north and south. To the north, Görresstraße, Karl-Marx-Straße, and Friedrich-List-Straße are laid out as looped streets ending in cul-de-sacs. They are set slightly back from Lassallestraße, partly screened by a row of terraced houses positioned perpendicular to the narrow street.
The street itself, along with the houses lining it, is further shielded by four larger buildings to the north along Am Erlenbruch. With their distinctive rounded balconies highlighted in red and their avant-corps, these buildings form a striking boundary to or gateway into the estate. Today, they also serve a practical purpose by helping to reduce traffic noise within the neighbourhood.
South of Lassallestraße, three rows of houses extend almost as far as towards the street Raiffeisenstraße. They start at Lassallestraße with the first building designed with a balcony on first floor. All the terraced houses in the estate have access to an own garden. Most of them in the row are equipped with roof terraces.
Also planned at the time were the Church of the Holy Spirit to the west and the Pestalozzi School to the north of the estate. Although they formed part of the original planning concept, they are treated separately here.