In 1924 Taut was made chief architect of GEHAG, a Berlin public housing cooperative, and was the main designer of several successful large residential developments ("Gross-Siedlungen") in Berlin, notably the 1925 Hufeisensiedlung ("Horseshoe Estate"), named for its configuration around a pond, and the 1926 Onkel-Toms-Hütte development ("Uncle Tom's Cabin") in Zehlendorf, named for a local restaurant and set in a thick grove of trees. Both of these constructions became prominent examples of the use of colorful details in architecture.
Between 1924 and 1931, Taut's team completed more than 12,000 dwellings. In tribute to Taut, GEHAG incorporated an abstracted graphic of the Horseshoe Estate in its logo. This state housing association was sold by the Senate of Berlin in 1998; its legal successor is Deutsche Wohnen.