Gold Architecture, Building and Structure Design · 2026
L Company Guest House
by Keiji Harada
- A' Design Award 2026 Gold Winner in Architecture, Building and Structure Design
- Awarded April 15, 2026
- CLIENT: Harada Keiji Design Office
- Estimated Number of Design Views: 49,060
- Verification code 4256250F4C · Verify this award
About L Company Guest House
This architectural and spatial design project was commissioned by L Company, a diversified enterprise active in hospitality, real estate, and lifestyle services. The project involved developing a guesthouse with a welcoming hall, meeting rooms, and accommodations. Each space was designed with attention to functionality and user experience, ensuring clarity, comfort, and ease of use. The spatial composition reflects a balanced approach, integrating practical needs with visual order. The layout creates a calm, efficient environment aligned with the company's philosophy and quality commitment.
KEIJI HARADA's L Company Guest House emerges as a distinguished contribution to contemporary residential architecture, demonstrating exceptional sensitivity to the dialogue between material permanence and atmospheric ephemerality. The work appears to engage deeply with phenomenological traditions in architectural practice, where the experience of space transcends mere functional accommodation to become a vehicle for heightened sensory awareness and contemplative dwelling. The masterful deployment of rough-hewn limestone establishes an immediate connection to geological time and artisanal craft, while the precise geometry of the courtyard composition suggests influences from both traditional courtyard typologies and modernist spatial abstraction. The photograph captures a moment of remarkable luminous balance, when artificial interior warmth and natural twilight achieve equilibrium, revealing how the architecture choreographs daily temporal rhythms into experiential narratives. Technical accomplishment manifests in the seamless integration of heavy masonry and delicate glazing, the precise calibration of linear lighting elements that appear to levitate solid walls, and the creation of a reflecting pool that transforms the courtyard into an instrument for doubling visual phenomena. The inclusion of a flowering tree introduces the Japanese concept of borrowed scenery while establishing organic counterpoint to architectural rigor, suggesting seasonal awareness as integral to the design philosophy. The glass bridge element demonstrates sophisticated understanding of material transparency and its capacity to connect while defining spatial boundaries. This work invites consideration of how contemporary architecture might honor traditional craft values while embracing technological innovation, and how the threshold between interior sanctuary and cosmic expanse might be activated through careful material and luminous orchestration. What memories of place and time might such spaces cultivate within those who dwell within their contemplative embrace?
Press Kit
- Unique Properties
- This architectural and spatial design project was commissioned by L Company, a diversified enterprise engaged in various business ventures. The guesthouse, owned by the company, features a welcoming hall, meeting rooms, and accommodation spaces, all designed to offer a serene and refined environment for visiting guests.
- Dimensions & Packaging
- Structure Type:
Reinforced concrete (RC) structure with one basement level and three stories above ground.
Floor Areas:
Basement: 300 m2
1st Floor: 737 m2
2nd Floor: 522 m2
3rd Floor: 146 m2
Total Floor Area:
1,705 m2 - Tags
- Architectural design, interior design, spatial design, guesthouses, conference rooms, halls
- Production Technology
- A particular highlight is the grand design of the welcome hall's flooring, where the dynamic, uninterrupted veining of the marble flows seamlessly across the space, creating a powerful and majestic impression. This striking feature sets the tone for the entire property, where only natural materials have been used. Floors and walls are finished with elegant marble, ceilings are coated in traditional Japanese plaster, and all furniture is crafted from solid natural wood and genuine leather, evoking a refined and timeless atmosphere.
- Design Challenge
- A key challenge in this project was the careful selection of natural materials. The thin layers of traditional plaster required repeated and meticulous base preparation to prevent cracking. Solid wood was prone to warping depending on environmental conditions. For the leather elements, only the highest-quality sections with minimal blemishes or discoloration were used. Despite the difficulty in sourcing such materials, the resulting space is one of exceptional warmth, quality, and presence.
- Project Duration
- This project was carried out in Fukuoka City over a period of two years starting from 2022.
- Operation Flow
- Upon arrival, guests are struck by the profound sense of gravitas and refined aesthetics that define the facility.
This impression is soon deepened by the sincere hospitality of the staff, whose service reflects unwavering dedication to comfort and care.
Guests may momentarily wonder whether their visit is for business or leisure, as they are gently enveloped in an atmosphere of calm and distinction.
This is not merely a place to stay; it is a guesthouse where the ordinary is gracefully transcended. - Research
- In every project we undertake, we carefully consider the unique characteristics of the location and all relevant conditions to propose a design that best meets the client's needs. For this project, positioned as a guest house for business use, our aim was to create an atmosphere where guests can feel at ease - free from tension - as if they were experiencing a scene from a serene resort. The design is intentionally simple yet dynamic, evoking a sense of calm sophistication.
- Inspiration
- This project began as a challenge to overcome strict architectural limitations. As a guesthouse welcoming international visitors, the low ceilings and confined atmosphere posed a design dilemma. By embracing simplicity and using dynamic materials, I aimed to transform the space - creating a sense of openness, elegance, and vitality despite its physical constraints.
- Image Credits
- Aii Images:photographer Toshihisa Ishii （Blitz Studio）2023
Colors of L Company Guest House
Design Interview about L Company Guest House
The main idea behind this project was to create a calm and immersive spatial experience through light, materiality, and sequence. I aimed to balance openness and privacy while allowing architecture and interior space to feel naturally connected.
My main focus was to create an atmosphere of quiet luxury without relying on excessive decoration. I wanted the users to experience comfort, calmness, and spatial depth through proportion, light, and carefully selected materials.
I hope this project will continue to be appreciated as a timeless space that ages beautifully over time. I would also like it to contribute to future hospitality and residential design projects internationally.
The concept development and design process took several months, followed by a long coordination and construction period to refine the details and spatial atmosphere carefully.
This project was commissioned, but it also became an opportunity to explore my own architectural interests regarding calmness, spatial continuity, and the relationship between materials and light.
This design was created specifically for the client and the site. I do not intend to sell or reproduce the design, as I believe architecture should respond uniquely to each context.
I have always been interested in creating spaces that quietly support human experience. This project allowed me to further explore spatial atmosphere, sequence, and material expression.
Rather than one specific designer, I was influenced by Japanese spatial culture, contemporary architecture, and the quiet sensibility found in traditional materials and craftsmanship.
The target users are people who value calm environments, spatial quality, privacy, and refined everyday experiences within residential or hospitality settings.
What distinguishes this project is its restrained spatial expression and careful balance between architecture, light, materials, and silence. The design avoids unnecessary gestures and focuses on atmosphere.
The project name reflects both the client identity and the character of the space itself. It was chosen to remain simple, neutral, and closely connected to the project context.
I used hand sketches, CAD drawings, 3D studies, physical material samples, and on-site verification throughout the design and construction process.
The most unique aspect is the way natural light, water, materials, and circulation work together to create a quiet and immersive spatial experience.
I collaborated closely with engineers, craftspeople, contractors, lighting specialists, and material suppliers to achieve the intended spatial precision and atmosphere.
Technology supported the project mainly through lighting control, construction precision, and coordination tools, while the design itself remained focused on human sensory experience.
The design process included careful site observation, material studies, lighting research, and continuous evaluation of how people would experience movement and atmosphere within the space.
One challenge was maintaining spatial simplicity while coordinating technical requirements, construction details, and functional needs throughout a large and complex project.
I decided to submit this work because I felt the project expressed my architectural values clearly, and I wanted to understand how it would be viewed internationally.
Through this project, I learned the importance of patience, coordination, and refining simplicity. I also deepened my understanding of how atmosphere can shape human experience.
Beyond physical form, I believe architecture should quietly support memory, time, and everyday life. I hope this project offers a calm and lasting experience for its users.
Grand Interview about L Company Guest House
The welcome hall is the first point of dialogue between the visitor and the architecture, and I considered it an important space for communicating the values and identity of the company.For the marble flooring, we carefully selected and positioned each slab so that the natural veining would flow continuously across the entire space. Achieving this continuity was not an easy process, but I believed that the resulting sense of movement and scale would create a powerful impression.The uninterrupted marble pattern was intended not only as an aesthetic gesture, but also as a symbolic expression of the company’s dynamic business strategy and expansive vision. Rather than emphasizing luxury alone, the marble establishes a calm sense of dignity and creates the atmosphere that defines the entire property.
Every architectural project contains limitations, and this project was no exception.One of the primary challenges was the relatively low ceiling height and spatial constraints. Instead of treating these conditions as disadvantages, I chose to emphasize horizontal continuity, material richness, and visual depth.This approach allowed the spaces to feel calm, comfortable, and generous despite their physical limitations. The constraints ultimately encouraged deeper design thinking and became creative opportunities rather than technical obstacles.
People intuitively perceive the authenticity of materials, even without consciously recognizing it.Natural stone, wood, leather, and traditional plaster possess a warmth and honesty that cannot be replicated by artificial alternatives. I believe these authentic materials create a sense of comfort that transcends language and cultural differences.For international guests visiting Japan, the consistent use of natural materials provides a subtle but meaningful experience of calmness and trust. In my view, true hospitality is not expressed through decoration alone, but through the sincerity and integrity of the materials that surround people.
I do not see a corporate guesthouse simply as a place for accommodation or reception.This facility was conceived as a place where investors, entrepreneurs, and business leaders from around the world can experience the company’s philosophy and long-term vision. The client organization actively supports business growth through investment, strategic guidance, and integrated support systems that contribute to both economic development and social progress.For this reason, the guesthouse was designed not merely as a place to stay, but as a spatial expression of the company’s values and aspirations for the future.I believe the international jury may have appreciated not only the material quality and calm atmosphere of the project, but also the way architecture and corporate philosophy were seamlessly integrated.
I believe that the quality of a space is ultimately determined by the accumulation of countless details.The selection of traditional Japanese plaster and premium leather required exceptional care, patience, and collaboration with skilled craftsmen. Much of this effort remains invisible to visitors, yet these hidden layers of dedication are what create lasting quality.Throughout the two-year process in Fukuoka, I was reminded that design is not only about form-making but also about respecting materials, craftsmanship, and the people who bring a project to life. The process of sourcing and refining materials became an essential part of the design itself.
Architecture is intended to endure over time, and therefore I value permanence over temporary visual impact.Throughout this project, I often chose restraint over expressiveness. Rather than relying on dramatic gestures, I focused on creating spaces that would remain meaningful through their proportions, materials, and atmosphere.I believe simplicity is not the absence of design, but the result of careful decision-making. Spaces that do not speak too loudly allow people to bring their own experiences and emotions into them. For me, simplicity remains one of the most powerful and honest design tools available.
Traditional Japanese materials and craftsmanship possess values that extend far beyond cultural boundaries.Rather than treating these elements as historical references, I seek to integrate them naturally into contemporary environments. This project reinforced my belief that regional identity and international functionality can coexist harmoniously.In future projects, I hope to continue exploring ways to express local culture through architecture while meeting the evolving needs of a global audience.
The true value of this project lies not in its luxury, but in its ability to dissolve the boundary between business and relaxation.I wanted guests to feel comfortable enough to momentarily forget whether they were present for work or leisure. The building was designed to create an atmosphere where conversations, reflection, and human connection can occur naturally.Perhaps the most important aspect of the project is its quiet psychological influence. Rather than demanding attention, the architecture gently supports the wellbeing and experience of its users.
Traditional Japanese plaster carries centuries of cultural knowledge and craftsmanship, yet its value can be appreciated even without understanding its history.People naturally respond to its texture, softness, and subtle interaction with light. In that sense, the material itself becomes a form of cultural storytelling.I believe architecture has the ability to communicate culture without words. Even visitors with no prior knowledge of Japanese traditions can experience the atmosphere and sensibility embedded within these materials.
Architecture is not experienced as a single image but as a sequence of moments.The arrival hall was intentionally designed to create a strong first impression through the expansive marble floor and sense of presence. However, as guests move deeper into the building, the spaces gradually become quieter, more intimate, and more personal.My goal was to create an emotional progression where anticipation gives way to comfort and reflection. While each space possesses its own character, they are unified by a consistent material language and atmosphere, ensuring that the initial impact never overwhelms the more subtle experiences that follow.