| Title |
A Study to Improve the FAR Incentive System in the District Unit Plan of Seoul |
| Keywords |
지구단위계획 ; 용적률 ; 인센티브 ; 서울시 District Unit Plan ; FAR ; Incentive ; Seoul |
| Abstract |
Incentive system can be an effective tool to accomplish the goals of the District Unit Plan by compensating the private developers’disadvantage caused by observing the guidelines. The present incentive system, however, has several problems : excessiveness, and lack of consistency, equity and flexibility. This study analysed the guidelines and development cases of District Unit Plans in Seoul to explore a better way of utilizing the incentive system, and suggested the following directions.
First, the incentive items should be selected on a rational basis by evaluating the observance difficulties and public contribution. Because the amount and method of incentive should be different according to the characteristics of the items, the incentive items need to be classified into three categories: Essential items, Optional items, and Additive items. Secondly, we examined a appropriate range of incentives, and suggested an incentive of 2/10~5/10 of the Criterion FAR at 200% FAR as the maximum as a guideline for proper incentive range. Thirdly, three incentive calculation methods were examined to explore a better way of endowing incentives: Additive, Subtractive, and Hybrid method. Among them, Subtractive method could not be proposed because of its inequity problem, and Additive and Hybrid method could be used in the District Unit Plans depending on the specific conditions of the site. Additive method could be adopted if the difference between the Criterion FAR and the Permitted FAR is small and the deviation in the guidelines applied to each parcel is large, whereas the Hybrid method is considered to be a better alternative in the contrary condition. |