21. The Census tally of dwelling units is 872. 22. The project originally had 1189 residential buildings, which contained a total of 1900 individual dwelling units . 23. Although it built around 23000 dwelling units , it was not sufficient for the rapidly increasing population. 24. Petitioner's zoning code reserves certain neighborhoods primarily for " ( s ) ingle-family dwelling units ." 25. It commonly contains a bed and, in newer dwelling units , a built-in closet for clothes storage .) 26. A central high-rise tower 20 stories high containing 146 dwelling units anchors the structure's postmodern architectural theme. 27. Co-op living arrangements are generally thought of as occurring within a single dwelling unit , shared by all. 28. Dwelling units have also been classified into single houses, duplex, multi-unit residential, institutional, living quarters and others.29. He also added six brick structures, containing a total of thirteen dwelling units to house enslaved workers. 30. The citations charged violation of the zoning code rule that defines who may live in single-family dwelling units .