There is insufficient information about the city's planning style, but it appears to have developed at the expense of the mosques, which had their own clear plans and landmarks. The residential area in Hillah has gone through many phases depending on the city's age and the historical periods that have affected it, both in terms of stagnation and activity. This was reflected in the area of the residential area, its population, and its building style. In the first phase of the city's history (the emergence and development phase), which began with the emergence of the mosques and continued until the establishment of the Al-Mazidiyya Hillah, the city's existence at this stage was due to the presence of some mosques and shrines in the location where they first emerged (the city's nucleus). This helped attract residents and functional activities around it, and it became an urban center. Despite being a city with a market, a camp, a courthouse, and administrative centers, there is no specification of the location of these activities, a description of their components, their architectural style, or a determination of their area. In the next phase (the establishment of the Al-Mazidiyya Hillah), which extended from the adoption of the Prince Sadaqah of the mosques west of the Euphrates, It was established for him and his tribe in 495 AH/1102 AD and ended with the end of the rule of the Muzaydi Emirate in 545 AH/1150 AD. We find that Hillah continued to acquire the characteristics of the same stage that preceded it. This situation affected all the cities that developed from ancient villages. Thus, the growth pattern was random and not restricted by planning. This appears clearly in the modern and ancient Jami’in district, despite the modifications and changes that were made to its role. An important event that distinguishes the residential district during the rule of the Muzaydiyyin is the expansion of its spatial area, as Prince Sadaqah ordered the establishment of two residential districts, one located in the south and called (Al-Jami’in) and it was specific to Prince Sadaqah and his entourage, and the other located in the north of Al-Hilla and called (Al-Akrad) and it was for the Kurdish fighters and descendants of the tribes (Al-Jawaan and Al-Shadhanjan) who were part of the army of the emirate. In the period that followed (the Abbasid administration period) that extended from the year 545 AH / 1150 AD until the year 656 AH / 1258 AD, and although the residential district did not witness a great development in its architectural style, it grew greatly in the number of its inhabitants, as a result of the large migration that migrated from the cities neighboring the city of Qasr bin Hubayrah and the villages located in the upper Euphrates, which led to the expansion of the area of the residential district, and it seems that the Al-Jabawin district, which arose in the middle of the distance between the Kurdish district and Al-Jami’in, was the link that The urban fusion between the two sides was achieved, then the Al-Qalaj neighborhood, and these neighborhoods still retain their names at the present time. The growth during this stage invested in the high lands of the city, especially the parts whose height ranges from 33-34 meters above sea level. It seems that the boundaries of the two mosques expanded to include the current Al-Taq and Jiran neighborhoods, as well as the proximity of these neighborhoods to the market and their containing the shrines of many scholars and men of Hilla. # Almustaqbal Universty - The first among private universities in Iraq