According to the BMA Board Decree No. 3/1989 on 20^th May 1989 and the Three-year Personnel Plan (during the fiscal budget year of 1988-1990), the City Planning Division was improved their working structure again. They were divided into 6 Subdivisions and 1 Sections; (1) Secretary Section, (2) Policy and Evaluation Subdivision, (3) Research Subdivision, (4) Surveying and Mapping Subdivision, (5) Urban Development Planning Subdivision, (6) Conservation and Renewal Planning Subdivision, and (7) Urban Planning Control Subdivision.

     Later, according to the Three-year Personnel Plan (1991-1993) and the BMA Board Decree No. 3/1992 on 20^th March 1992, the City Planning Division comprised 6 Subdivisions and 1 Section. They were (1) Secretary Section, (2) Technical Subdivision, (3) Surveying and Mapping Subdivision, (4) Research Subdivision, (5) Urban Development Planning Subdivision, (6) Conservation and Renewal Planning Subdivision, and (7) Urban Planning Administration Subdivision.

In 1994, according to  the BMA Board Decree No. 11/1994 on 20^th November 1994 and No. 12/1994 on 26^th December 1994  , the City Planning Division has been promoted to be the Department namely " the Department of City Planning " (DCP). There were totally 219 staffs in the period. In terms of working structure, there were 7 Divisions; (1) Secretary Division, (2) Technical and Policy Division, (3) Surveying and Mapping Division, (4) Land Information System Division, (5) Urban Development Planning Division, (6) Land Readjustment and Urban Renewal Planning Division, and (7) Urban Planning Control Division.

In 1997, according to  the BMA Board Decree No. 3/1997 on 21^st May 1997, the BMA was improved their  working structure. As the result, the Land Information System Division was transferred from the DCP to the Department of Plan and Policy for the BMA, Therefore, the DCP comprised the remaining 6 Divisions with totally number of 196 staffs in the year.

Recently, according to the BMA Board Decree No. 2/1998 on 16^th  February 1998, the BMA has been improved the working structure and administration system again. Finally, there were 188 staffs in 6 Divisions of the DCP in this period.