Pursuing his concept of "organic urban planning" and an "organic urban landscape", the planner and architect, Hans Bernhard Reichow, used the features of the landscape – the protected area of Bullerbachtal and a gravel pit that was created while the
Autobahn was being built – in order to subdivide the new town, which held a German Grünes Kreuz (‘Green Cross’), into three boroughs: the Südstadt (‘South City’), the Weststadt (‘West City’) and the Oststadt (‘East City’). Sports fields were built on the site of the gravel pit, while a municipal park was built in Bullerbachtal. Reichow's requirement, that an urban model should incorporate all areas of life, tied in with the reformist concepts for society and living that characterised urban planning at the start of the 20th century. The buildings were supposed to be geared towards the rhythms of life and the modes of behaviour of their residents. In addition, the planners took the term "urban landscape" to mean a cityscape that neither closed itself off, as in the medieval city, nor sprawled outwards into the surrounding landscape, as in modern cities. In accordance with Reichow's plans, the road network should remain largely grade separated and resemble the veins of a leaf. Therefore, the roads were built like arcs each of which flows in a slight curve into the higher-ranking road. For security reasons, the pedestrian network should be completely separate from the traffic roads. Reichow envisaged arranging the right of way intuitively through the architecture of the roads and not via signposts, traffic lights or right-to-left schematics.[26] Later on, however, the main roads in Sennestadt were signposted like normal right-of-way streets. The locations of the town hall (Sennestadthaus), schools, churches, sports fields and shopping hubs should create correlations and make it easier for residents to get their bearings. At the same time the importance of these facilities should be specially accentuated by the architecture and the location. When building the residential homes, Reichow dispensed with a rigid linear plan. Instead, he placed the houses in a "dynamic motion and decentralisation". They are also deliberately different in terms of height and structural shape, in order to create a dynamic building zone. The design of the homes was supposed to do justice to that era's new rhythm of life, increased freedom and the residents' habitability requirements. Most homes in Sennestadt are arranged in such a way that the main living room, the balcony and at least one children's bedroom gets the afternoon sun so that the residents can enjoy the sun during their free time. According to Reichow, the rooms "meander between due South and due West, i.e. within a 90-degree angle." Double balconies were avoided, in line with the human need for distance and privacy. In order to give the city an attractive shape, when building Sennestadt, Reichow and the municipal politicians made sure to incorporate Kunst am Bau (‘Art in Construction’). From 1971 to 1975, the Sennestadthaus – originally planned as the town hall – was incorporated into a nine-story building on a headland in the dammed up Sennestadt Pond. In accordance with Reichow's plans, the Sennestadthaus – together with the central square (now known as Reichowplatz) in front of it and the surrounding service buildings – was supposed to represent the "city's crowning glory". Sennestadt's amalgamation with Bielefeld in 1973 meant that it never became the town hall but rather the seat of a district office and a cultural centre with an event and concert hall. When Hans Bernhard Reichow died in 1974, a journalist also praised him for his cultural and historic role in Sennestadt: This city, which brought him worldwide success and was celebrated by thousands of people from around the globe as a prime example of German urban planning, had grown especially dear to his heart... In Sennestadt the urban planners ... were able to realise his ideas for a "car-friendly city". This is also the place where he successfully combined residential homes with industrial settlement. Reichow... was not concerned with creating a dormitory town outside the gates of Bielefeld. Sennestadt was to be a vibrant city. He also succeeded in that regard... == Environmental aspects ==