| Title |
An Exploratory Analysis of Applying Off-Site Construction to Old Buy to Rent Public Housing |
| Authors |
박윤재(Park, Yoon-Jae) ; 이지은(Lee, Ji-Eun) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.2.35 |
| Keywords |
Public Housing; Buy to Rent; Old Housing; Off-Site Construction ; Housing Location; Wooden PMM Unit |
| Abstract |
The Buy to Rent Public Housing (BRPH) Program, launched in 2004, has been in operation for more than two decades, leading to a
growing number of aging housing units. To address this, the Public Building Remodeling Program was created to improve physical conditions
through reconstruction and renovation. However, the sharp rise in construction costs after the COVID-19 pandemic has made implementation
increasingly difficult. Off-Site Construction (OSC) methods, known for being more cost-efficient than conventional reinforced concrete (RC)
construction, have gained attention and are now used more frequently in public housing projects. OSC relies on a dual-structure process in
which modular units are produced in factories and then assembled on-site, making transportation and lifting operations essential to project
feasibility. BRPH sites, however, differ greatly from typical OSC project environments. While many OSC projects are placed in newly
developed urban areas with low building density and wide road access, BRPH sites are often located in older, densely built districts with
narrow roads and limited space. As a result, applying OSC methods in these areas requires customized transportation and lifting criteria. This
study identifies transportation and lifting standards for three OSC construction types by analyzing modular housing cases of similar scale.
These standards were applied to deteriorated BRPH sites in Seoul. The results show that although steel VMM and concrete PMM modular
units work well for apartment-type housing, their suitability for BRPH remains limited. The findings highlight the need for OSC modular
units specifically tailored to the spatial and logistical conditions of BRPH. |