Urban Prism Óga by Nobuaki Miyashita is a highly esteemed winner of the very prestigious 2025 A' Design Award Brónse in Arquitectura, Óga ha Mba'eguasu Jejapo Competition Category.

BrónseArquitectura· 2025

Urban Prism Óga

by Nobuaki Miyashita

Client: Aida Sekkei Co., Ltd.

A' Design Award Brónse Winner in Arquitectura Category

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The Design

About Urban Prism Óga

Urban Prism ha'e peteĩ óga mbohapy pisove oñemopu'ãva Tokyo, Japón tetã ryepýpe, tenda henyhẽitéva tapicha rekohápe. Pe yvyra'ígui ojejapo estructura oipyso 127,82 metro cuadrado tuja, peteĩ site 100,13 metro cuadrado ári. Tápia rembe'y ha okẽ guasu ombosako'i peteĩ tenda mombyry, oiko hendaguévo pe tesape ha yvytu oike hag̃ua óga ryepýpe. Peteĩ corral ombopyso pe living oĩva okápe, ha pe screen ikatúva ojepokuaa ombosako'ipa pe privacidad ha pe ára resa. Pe okápe oñemoĩ peteĩ revestimiento fibrocemento oguerekóva textura, ha pe ryepýpe katu ojejapo yvyra roble ogue peguáva, fierro ha vidrio reheve. Pe hechapy escultural oiko oñemboja hag̃ua umi léi hendaguéva pe táva pukukue ha pe retroceso oñemomba'apóva upérupi.

The Recognition

About the A' Design Award Brónse

Urban Prism Óga ohupyty A' Design Award Brónse, peteĩ ñehechakuaa heta prestigioso oñeme'ẽva diseño sobresaliente-pe ojekuaáva creatividad, ingenio ha astucia rupi. Umi ganador Brónse ha'e artefacto hábil ha creativo ohechaukáva experiencia, imaginación ha recurso umi diseñador-pe. Oñeha'ãrõ Urban Prism Óga ha'eha peteĩ objeto ojehayhúva, admirado ha estimado, profesional ha innovador. Ko diseño ohupytýva A' Design Award Brónse ombojoaju mejor práctica arte, ciencia, diseño ha tecnología rehegua ha iporãiterei detalle rehe. Urban Prism Óga ombohory necesidad, ohupyty ipotapy, ombovy'a sentimiento ha ohenói curiosidad.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: Urban Prism balances privacy and openness in a dense urban setting. The design utilizes boundary walls and a gate to create a buffer zone filled with light and air, seamlessly connecting the interior and exterior. Japan’s strict height and setback regulations shaped its refined, sculptural form. A courtyard extends the living space, while adjustable screens regulate privacy and daylight. Black bamboo and upward lighting enhance the entrance, evoking a Japanese aesthetic.
Dimensions & Packaging: Site Area: 100.13 Square meters
Building Area: 57.64 Square meters
Total Floor Area: 127.82 Square meters
Structure: Wood
Number of Floors: 3 above ground
Eaves Height: 8.53 m
Ceiling Height: 2.50 m
Tags: architecture, house, urban design, natural light, spatial composition, sustainable living
Production Technology: The house employs durable materials suited to urban environments. Textured fiber cement siding accentuates light and shadow interplay, reinforcing depth. The interior harmonizes solid wood, steel, and glass, blending modernity with warmth. Oak flooring enhances the tactile experience. High-performance insulated glass and movable screens optimize daylight, ventilation, and privacy. The exterior cladding ensures longevity, requiring minimal maintenance over time.
Design Challenge: The greatest challenge was balancing privacy and openness within strict urban zoning constraints. Japan’s stringent height and setback regulations required innovative volumetric manipulation to maximize livable space. Socially, the project had to address urban density while maintaining tranquility. Externally, material selection was limited by durability and maintenance concerns. Advanced simulations optimized daylight and airflow, ensuring a harmonious spatial experience.
Research: Type of Research: Architectural design research
Research Objectives: Optimization of urban housing through spatial and environmental adaptability
Methodology: Model testing, daylight and airflow simulations
Data Collection: On-site analysis, material performance tests
Results: Established a refined approach to urban privacy, integrating zoning constraints into design solutions
Inspiration: The project transforms zoning constraints into design potential, integrating privacy, natural light, and spatial expansion. The home’s multi-layered structure fosters an interplay between openness and enclosure, adapting flexibly to its surroundings. Carefully arranged volumes and walls create a dynamic sequence of spaces. The design embraces traditional Japanese elements, reinterpreted through contemporary architectural language to enhance urban living.
Project Duration: The project was completed in 2019 in Tachikawa, Tokyo, Japan.
Operation Flow: Smooth circulation and spatial layering create a dynamic living experience. The atrium channels natural light and air throughout the house, shifting in ambiance with time. Adjustable screens and staggered walls allow residents to control privacy and exposure. The courtyard functions as an outdoor extension of the living room, enhancing spatial fluidity. Black bamboo and illuminated surfaces establish a serene entryway, linking nature with contemporary design.
Patents: N/A
Team Members: N/A
Image Credits: Image #1, #2,#3, #4, #5: Photographer Nobuaki Miyashita, Variations, 2019