Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Forecast of Repair and Maintenance Costs for Public Rental Housing

공공임대주택의 유지관리를 위한 수선유지비용 예측

  • Lee, Hak-Ju (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kim, Sunghee (SH Urban Research Office, Seoul Housing and Communities Corporation) ;
  • Kim, Do-Hyung (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Cho, Hunhee (School of Civil, Environmental and Architectural Engineering, Korea University)
  • Received : 2018.07.02
  • Accepted : 2018.11.05
  • Published : 2018.12.20
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Abstract

The repair and maintenance cost of domestic public rental housing is an issue of considerable interest and growing financial concern. This paper suggests a quantity-based model as an alternative method for predicting costs, instead of the conventional model which is based on actual cost data. Furthermore, this paper provides a forecast of the repair costs incurred each year during the multi family house's maintenance phase (40 years). The recently changed the long-term repair plan and quality-improved interior materials were considered into the research. In order to estimate the cost of maintenance work, 5 sample apartments were selected and analyzed. The repair and maintenance cost from the case studies was converted to cost per household and per floor area for general use. On the other hand, the net present value method was applied to reflect the effect of time. We expect that the results will help to establish expenditure plans that are more effective for public rental housing in the maintenance stage.

국내 공공임대주택에서 유지관리 단계에서의 수선유지비는 효율적 관리의 필요와 함께 그 중요성이 부각되고 있다. 본 연구에서는 수선유지비를 예측하는 방법으로서 기존의 실적자료를 통한 방법을 대신하여 물량기반의 예측방법을 제안하고자 한다. 견적방식 모델을 통하여 공동주택 유지관리단계의 40년간을 대상으로 연차 단위별로 수선유지비용을 예측하고 분포 특성에 대한 정보를 제공한다. 수선유지비예측의 정확성을 제고하기 위해, 최근 변경된 장기수선항목 및 수선주기를 반영하였다. 또한 최근에 건설된 공동주택 마감수준을 수선대상으로 포함하였다. 수량산출은 공공임대주택 5개 사례현장을 선정하여 수행되었으며, 세대수 및 연면적 단위로 환산하여 공공임대주택의 수선유지비를 범용적으로 예측하는데 활용될 수 있도록 분석하였다.

Keywords

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Figure 1. Flow of cost estimates for repair

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Figure 2. Pattern of maintenance cost of 5 samples for 40 years by present value

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Figure 3. Maintenance cost of the different apartments and repair divisions by present value

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Figure 4. Distribution of maintenance cost over 40 years by present value

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Figure 5. Unit cost of 5 samples in major years by present value

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Figure 6. Relationship between the quantity-based cost and actual cost

Table 1. Life cycle cost composition of apartment housing

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Table 2. Criteria related to maintenance costs

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Table 3. Overview of 5 case studies

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Table 4. Items for maintenance cost estimates in case studies

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Table 5. Total cost of maintenance of 5 samples (40years)

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Table 6. Analysis of average cost of maintenance

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Table 7. The top 20 listed items and maintenance cost

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Table 8. Unit cost per household (won/ho)

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Table 9. Unit cost per total floor area (won/m2)

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References

  1. Lee JY. Analysis of the market-stabilizing effect of public rental housing: Focused on seoul area [dissertation]. [Seoul(Korea)]: Kwangwoon University; 2015. 102 p.
  2. Shin YS, Cho HH, Kang KI. Implementable strategy on asset management of domestic public rental housing. Journal of the Korea Institute of Building Construction. 2009 Apr;9(2):103-10. https://doi.org/10.5345/JKIC.2009.9.2.103
  3. Kim SH, Song SH. A maintenance cost forecast according to deterioration of public rental housing. Seoul Studies. 2012 Dec;13(4):133-46.
  4. Sun KU. A study on the sustainable development of long-term public rental housing: Focusing on the public housing project of Korea Land & Housing Corporation [master's thesis]. [Seoul(Korea)]: Korea University; 2018. 30 p.
  5. 2018 annual report. Seoul(Korea): Seoul Housing & Communities Corporation; 2018. 221 p.
  6. Park MY, Jang SJ. The comparison of maintenance cost and residents' consciousness of remodeling by rental apartment types. Journal of The Korean Housing Association. 2003 Aug;14(4):69-76.
  7. Kang HK, Han CH. An empirical analysis of the effect of variables on maintenance expenses of public rental housing. Korean Journal of Construction Engineering and Management. 2006 Dec;7(6): 185-92.
  8. Hur JW, Lee JY. An empirical study on the determinants of management fee of muti-family housing in seoul. Journal of The Korean Urban Management Association. 2011 Jun; 24(2):173-85.
  9. Lee KH. A study on the space size analysis in aspect of maintenance cost in the multifamily housing. Journal of the Architectural Institute of Korea Planning & Design. 2002 Jul;18(7):51-8.
  10. Lee KH, Yoo US, Chae CU. A study on the forecasting model of the required cost for the long-term repair plan in apartment housings. Korea Institute of Ecological Architecture and Environment. 2011 Jun;11(3):63-8.
  11. Lee KH, Chae CU. Repair accumulation cost for the long-term repair plan in multifamily housing using the forecasting model of the repair cost. Korea Institute of Ecological Architecture and Environment. 2016 Jun;16(3):137-43.
  12. Yi SJ, Komatsu Y. Research on the long-term repair plan and large-scale repair work of an apartment house. Proceeding of Architectural Institute of Korea; 2008 Oct; Gwangju Korea. Seoul (Korea): Architectural Institute of Korea; 2008. p.581-4.
  13. Kang HW, Won YM, Kim YS. A study on the long-term maintenance costs and elemental maintenance costs for apartment buildings. Journal of the Architectural Institute of Korea Structure & Construction. 2010 Nov;26(11):111-8.
  14. Kang HK. Seo JN. A study on the factor of repair and maintenance costs of public rental housing. Journal of the Architectural Institute of Korea Structure & Construction. 2003 Jan;19(1):145-52.
  15. Kim SH. A empirical analysis of facility maintenance cost of public rental housing. Seoul Studies. 2013 Mar;17(1):83-97.
  16. Park GS. A study on the estimation of the long term repairment cost using the repairment cycle module. Proceeding of The Korean Housing Association; 2017 Apr; Daegu Korea. Seoul (Korea): The Korean Housing Association; 2017. p.167-70.
  17. Choi MS. Kim MH. The variation characteristics of life cycle cost in a office building according to the discount rates and inflation rates. Journal of the Architectural Institute of Korea Structure & Construction. 2006 Feb;22(2):131-7.
  18. Kim SH. A study deficit income and expenditure improvement of public rental housing business in local public corporation. Journal of Budget and Policy. 2014 May;3(1):263-86.