Company
Operating Company
Space Design Inc.
Company Name Space Design Inc.
Main Office 2-25-5 Yoyogi, Shibuya-ku, Tokyo, JAPAN
📞 03-6868-5258
Established March 2008
Representative Yuko Miyasaka
First-class Architectural firm No.56809
Real Estate Transaction Agent Tokyo (1) No.112617
Antique Dealer's License No. 301122320898

Our Philosophy at ArchLinks
Japan is blessed with rich natural beauty—oceans, mountains, and four distinct seasons.
Unfortunately, many developments ignore these unique landscapes. Trees are cut down, retaining walls are built, and houses are constructed with no regard for the land’s original character.
At ArchLinks, we believe in creating homes that harmonize with the natural features of each terrain—its greenery, views, and topography. We see each piece of land as one-of-a-kind, and we aim to design architecture that can take shape only on that specific site.
By carefully listening to our clients and respecting the character of each site, we help bring unique, meaningful spaces to life. Our network of trusted architects—many with international experience—can support you throughout the process in English.
From land search to construction and interior design, we offer total support for creating your ideal space.
Let’s work together to make your vision a reality.
Space Design Inc.
Representative Director Yuko Miyasaka
Yuko Miyasaka
Space Design Inc. Representative Director
First-class registered architect No.258701
Lighting consultant No.LC17116
SSOJ / regular member
High school :
Battle Abbey School / U.K.
Brooke House VIth Form College / U.K.
University :
The University of Tokyo, Architect
Meredith College / USA, Interior Design

I studied Interior Design at a university in the United States while raising my two daughters, then aged three and one.
After returning to Japan, I worked in store development at Nomura Co., Ltd. and in the design department of Prada Japan before establishing my own practice. I later undertook residential renovation design projects with Mitsui Designtec.
In 2008, I founded Space Design Inc. Guided by the keyword “Designing Bonds,” I provide interior design and design supervision services for retail spaces, residences, offices, and hotels.
In 2024, I obtained my Real Estate Transaction Specialist (Takken) certification. Beginning in 2025, I launched the architectural network brand “ArchLinks,” developing a business platform that connects real estate, architecture, and interior design.
ArchLinks Launch Event
Shotenkenchiku Seminar
“ArchLinks” + “Shotenkenchiku Real Estate”
When you start from real estate, spatial design becomes even more exciting!
At the “Japan Home Show & Building Show 2025,”
Shotenkenchiku Lounge at Tokyo Big Sight,
I had the opportunity to introduce ArchLinks.
You can consult with architects from the very beginning and even search for land that best suits your vision and concept.





ArchLinks Launch Event
On June 25, 2025, we held our launch event at the International House of Japan.
We had the pleasure of spending meaningful and enriching time with seven outstanding registered architects who are active at the forefront of their fields, as well as with trusted friends who are thriving in various industries.
By the end of the event, the rain had stopped, and we were even able to take photos in the beautiful garden—marking a wonderful start to our new initiative!
From property search to architecture and interior design, we aim to provide comprehensive space production.
We look forward to the exciting synergies that may arise!















ArchLinks Project #1
Luxury Villa in Karuizawa
April 2025 – We’ve signed the design contract for our first ArchLinks project in Karuizawa!
The architectural design is by Yasumi Taketomi, with interior design by Yuko Miyasaka of Space Design.
The home is scheduled for completion by New Year’s Day, 2027—and we’re so excited to see it come to life!
The size of the site is 500tsubo !


The size of the site is 500tsubo !




We leverage generative AI to visualize and refine interior design concepts
