• Land and Housing Review
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• v.11 no.2
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• pp.69-74
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• 2020

The purpose of this study is to investigate the effect of floor area ratio incentive system for Long-life housing certification system by simulation of five recently built apartment complexes. Apartments that are certified as superior in Long-life housing can receive 10% of the floor are incentive in Seoul. However, the difference between base and permitted floor area ratio are in general residential area of class 2 and 3 is not more than 20%. limit of feasible allowance incentive is limited. Even if there is an unrealized permitted floor area ratio, there is no reason to apply the Long-life housing certification system preferentially. Because the items of the floor area ratio incentive provided by the District Unit Plan are various, it shows that the floor space ratio incentive for Long-life housing certification system has little effectiveness. To enhance the feasibility of incentives for the Long-life housing certification system, improvement in the urban planning level, including district unit planning, including the design criteria for apartments in Seoul, is needed.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2019.05a
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• pp.222-223
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• 2019

Many attention have been paid to the innovative technologies aiming at the paradigm shift such as the modular housing, pre-fabrication method, or long-life housing. Despite the government's efforts to diffuse the long-life housing, few case gained the high grades by applying various technologies required in the Long-life Housing Certification System. The concerns of cost increase and low profit are the main reason why most of the construction firms avoid the adoption of long-life housing. In this study, the variations of construction costs were analyzed according to the grades in the Long-life Housing Certification System. The results of this study will help the decision makers find the optimal solution in employing the long-life housing technologies during planning.

• Journal of the Korean housing association
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• v.27 no.6
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• pp.57-64
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• 2016

Life-long housing refers to housing units whose performance is certified by the head of a Life-long Housing certification authority with respect to durability, variability and ease of repair. Since life-long housing should be able to meet residents' demands for changes in living space, the space of the housing should be able to be varied by using a dry construction method, instead of a wet construction method. For life-long housing to be approved, the installation of infill systems that life-long housing certification standards is needed. At present, apartment houses are being constructed only in accordance with the general rating, which is the lowest rating in the life-long housing certification system. The reason for this is that, since the infill system was created, it has not yet been actively used due to a rise in construction costs when infill products are utilized. In this regard, this study seeks to propose ways to optimize infill usage and create scenarios that can minimize the costs of life-long housing construction, taking into consideration variations in construction costs based on the characteristics of infill systems applied to housing.

• Journal of the Korean housing association
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• v.26 no.6
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• pp.191-198
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• 2015

The domestic housing paradigm has changed from quantitative growth to qualitative growth, and demands for pleasant living environment and meeting basic living conditions have increased due to increased living standards of the people. In a related move, the Ministry of land, Infrastructure and Transport introduced "long-life housing construction standards" in the Article 21 paragraph 6 of the Housing Act through a revision of the Housing Act in December 2014, devised detailed criteria and enforced the Ministry of Land, Infrastructure and Transport, titled "long-life housing construction certification standards" which require long-life housing certification in construction of apartment houses that accommodate more than 1,000 households. In this regard, A survey of consumers was conducted to collect opinions about consumers' perception and requirements regarding long-life housing, and thus to promote long-life housing and improve certification system criteria. The general public who wish to purchase housing were selected as the subjects for the present study, and the survey was conducted at the site of apartment house PR hall in Seoul and Gyeonggi-do as of January 2015. The result of this study is an opinion survey of long-life housing consumers. For future work, additional research is needed to establish legal standards and devise support systems, along with technology development for long-life housing.

• KIEAE Journal
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• v.16 no.1
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• pp.47-55
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• 2016

Purpose: Long-life housing causes unavoidable cost increase while providing higher durability, flexibility, and repair easiness compare to those of normal apartment. The effectiveness should be evaluated considering the level of passing mandatory Long-life housing Certification System when supplying specific size of apartment complex. Thus, it is essential to identify the estimated costs and the obtainable grade by applying the optional element technologies selectively during the design phase. This study aimed to suggest the technology influence matrix(TIM) to support decision-making of element technologies in planning stage of long-life housing. Method: The technology influence matrix was established based on the property information about applicable element technologies for long-life housing such as construction methods, interface types, cost data, and certification-related characteristics. The usefulness of TIM was verified through case study, in which TIM was applied to the exclusive housing unit and the influences from four areas of quantity, cost, certification, and schedule were identified and calculated. Result: TIMs covering four areas representing the essential planning factors were developed, and are expected to contribute to sound decision-making in planning long-life housing.

• Korean Institute of Interior Design Journal
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• v.25 no.1
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• pp.93-100
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• 2016

Long-life housing means a housing which structural members (Support) such as columns and floor are maintained for a long period of time and the housing can be used for approximately 100 years by replacing components (Infill) such as walls and furniture. The government established "Certification standards of long-life housing construction" on December 24, 2014, requiring the long-life housing certification for construction of apartment houses for over 1,000 households. However, it is necessary to prepare an incentive measure which could be granted to construction related personnel and housing owners due to the effectiveness of such system and recognition that the initial construction cost of long-life housing is high. The purpose of this study is as follows. First, the reasons and necessity of long-life housing cost increase for each construction company, housing owner, infill component manufacturer and designer which are long-life housing related personnel are determined. The direction of incentive grant for supplying long-life housing based on the determined items is established. The result of this study is as follows. First, a special treatment which is higher than the alleviation of construction standards according to the previous ordinance is necessary for construction companies to secure the business feasibility. Also, incentives such as the provision of service space and wide balcony are necessary to improve the preference level of parceling out. Second, financial incentives such as financial support for housing purchase, reduction and exemption of tax (acquisition tax and registration tax), and support of maintenance cost are required for house owners. Third, it is essential to increase opportunities to participate in the market for infill component manufacturers by applying additional points for PQ. Fourth, it is needed to provide compensation for additional human resource and time at the time of designing to designers by preparing the long-life housing design cost standards.

• Journal of the Korean housing association
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• v.28 no.1
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• pp.109-117
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• 2017

It becomes increasingly important to develop sustainable housing to protect environment. The certification system for long-life housing was made to use houses for more than one hundred years in 2014. The long-life housing should be able to meet new demands by change of the population structure; low birthrate, aging and increase of single households. Therefore, it is necessary to suggest a prototype of long-life housing for partial rent. The objective of this study is to suggest a prototype for dividing housing in the long-life validation complex, which has design consideration for dividable house. The construction costs of a prototype for dividing housing is evaluated by comparing with other prototype without regard to dividing housing. The results were as follows: (1) The prototype for diving housing should be added an entrance, bathroom, kitchen for tenant, and above all, maintenance fees for tenant have to be managed seperately from house owner. (2) The equipment system for dividing housing should be designed when planning the space of house. However, design for diving housing should be reflected the unit plan at a minimum on what will and will not happen.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.314-315
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• 2018

The long-life housing certification system must have been applied more than 1,000 households apartments since 2015. The basic design guideline for the popularization of long-life housing has been developed in 2017, which include the concept of long-life housing and basic principle of design long-life housing. The demonstration project of long-life housing is be currently under construction in Sejong-si. The aim of this study is to find items on design checklist considering construction stage. The main goal is the development of design manual of long-life housing.

• Journal of the Korean housing association
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• v.27 no.3
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• pp.1-9
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• 2016

It is essential to maximize the advantages of long-life housing in consideration of the occupants' demands in order to promote the construction of long-life housing. The diverse plan types with flexibility should be developed based on those demands. Therefore, this study aims to review the level of awareness of long-life housing, and identify the customer needs by conducting the survey for the preference to pre-defined plan types. The results of survey are as follows: 1) Despite the enforcement of the Long-life Housing Certification System in 2014, the recognition among the customers about the long-life housing is still on the low level as shown in that 79.9% of respondents were not aware of the long-life housing; 2) For three alternative plan types, 78.5% on the integration type in front, 63.1% on the moving kitchen type, 47.0% on the Divided Housing type had intention to change; 3) 68.9% of the total are willingly ready to purchase the long-life housing under the condition of no difference in price between normal apartment and long-life housing. The less the number of family members is, the bigger this ratio of positive purchase intention is. Reflecting these results into the designs is expected to contribute to the enhancement of customer satisfaction as well as the diffusion of long-life housing.

• Magazine of the Korea Concrete Institute
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• v.28 no.2
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• pp.18-22
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• 2016