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Article

Benefit–Cost Analysis of Green Roof Initiative Projects: The Case of Jung-gu, Seoul

Department of Urban Planning and Engineering, Hanyang University, 222 Wangsimri-ro, Seoul 04763, Korea
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Sustainability 2019, 11(12), 3319; https://doi.org/10.3390/su11123319
Received: 22 March 2019 / Revised: 1 June 2019 / Accepted: 12 June 2019 / Published: 15 June 2019
Green roofs, which have various economic, environmental and social effects, have been acknowledged as an alternative green space in urban areas. This study aims to investigate the economic feasibility of green roof projects by conducting a benefit–cost analysis on the case of Jung-gu, Seoul. The analysis estimates and compares five different scenarios applied in the study area with a 20-year operation period in all cases. This set of scenarios aims to compare the most idealistic situation with more achievable and realistic situations, to provide policy implications for green roof initiative projects in Seoul. The analysis consists of estimating six cost items and eight benefit items. Among the benefit items, two non-marketable elements are estimated by the contingent valuation method. The scenario with 100% application of a green roof, has benefits exceeding the costs with a benefit–cost ratio of 1.174. However, the other scenarios with certain prerequisites have a benefit–cost ratio that is very close, but still smaller than 1. Therefore, it is possible to claim that green roof initiative projects are economically viable under specific conditions. However, there are many restrictions to engaging in green roof constructions for entire building rooftops. View Full-Text
Keywords: extensive green roof; benefit cost analysis; Jung-gu; Seoul extensive green roof; benefit cost analysis; Jung-gu; Seoul
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MDPI and ACS Style

Shin, E.; Kim, H. Benefit–Cost Analysis of Green Roof Initiative Projects: The Case of Jung-gu, Seoul. Sustainability 2019, 11, 3319. https://doi.org/10.3390/su11123319

AMA Style

Shin E, Kim H. Benefit–Cost Analysis of Green Roof Initiative Projects: The Case of Jung-gu, Seoul. Sustainability. 2019; 11(12):3319. https://doi.org/10.3390/su11123319

Chicago/Turabian Style

Shin, Eunha, and Heungsoon Kim. 2019. "Benefit–Cost Analysis of Green Roof Initiative Projects: The Case of Jung-gu, Seoul" Sustainability 11, no. 12: 3319. https://doi.org/10.3390/su11123319

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