LKSA combines Red Brick and Granite on BLDG.B’s facade

 

BLDG.B is a mixed-use building developed by LKSA architecture firm as an income-generating property within a designated housing site development district in Korea. The structure consists of a ground floor allocated for neighborhood facilities, two floors accommodating four rental housing units, and a fourth floor with an attic serving as the client’s residence.

 

The corner site influenced the volumetric composition, resulting in a massing approach shaped by its spatial context. The ground level incorporates bright granite to create a visual contrast with the red brick mass above. This material continuity extends to the podium, window sills, and lintels, introducing a structured rhythm to the facade. The combination of red brick and granite was designed to establish both stability and variation in texture and materiality.

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
BLDG.B is a mixed-use building integrating residential and commercial functions | all images courtesy of LKSA

 

 

BLDG.B sets up a polygonal sharp-edged volume

 

The building’s form incorporates polygonal elements, with a pitched roof that integrates vertical displacements and sharp-edged surfaces. LKSA’s architectural team follows this approach to emphasize geometric articulation, giving the structure a distinct spatial identity. Given its corner location, the design prioritizes multi-directional elevations, balancing internal spatial functions with strategic openings on the facade.

 

To enhance the contrast between the materials, granite detailing is applied above and below the windows, creating a visual transition against the heavier texture of red brick. The piloti columns and walls feature rounded edges matching the warmth of the red brick, while variations in window placement and dimensions establish a structured yet dynamic rhythm across the elevation. Despite the constraints of the housing site development district, the project is designed to accommodate diverse living experiences while maintaining a cohesive architectural language.

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
red brick and bright granite create a striking material contrast

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
the structure features a ground-floor neighborhood facility with rental units above

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
a fourth-floor residence with an attic completes the building’s functional program

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
strategic openings balance interior spatial functions with external design

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
granite accents highlight the openings, contrasting with the textured brick

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
varied window placements create a dynamic yet structured elevation rhythm

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
rounded piloti columns and walls complement the warmth of the brick facade

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
material selection ensures both stability and textural variation

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
BLDG.B demonstrates the interplay of light and heavy materials

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
a carefully composed facade reflects balance between form and function

uniform red brick facade wraps cornerstone housing unit by LKSA in korea
the project prioritizes livability while maintaining a strong architectural identity

 

project info:

 

name: BLDG.B
architect: LKSA / LKSD  | @leeks21cc
location: Cheonggyesan-ro 3-gil, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea

site area: 251.30 sqm

building area: 149.17 sqm

gross floor area: 401.81 sqm

 

lead architect: Lee Keun Sik

design team: Kim Sung Joo, Jo Seung Wook, Bae Chun Geun

construction: TOHAUS Architecture Interior Design

structural engineer: LAIM

mechanical engineer: JUSIN MEC

electrical engineer: ELLIM

fire engineer: JUSIN / ELLIM

 

building to land ratio: 59.36%

floor area ratio: 159.89%

building scope: 4F

structure: RC

exterior finishing: Brick, Stone

interior finishing: Paint, Silk wallpaper

 

 

designboom has received this project from our DIY submissions feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.

 

edited by: christina vergopoulou | designboom