Otemachi One

What Otemachi One does

Otemachi One is a mixed-use commercial real estate complex located in Tokyo's Otemachi business district, directly connected to Otemachi Station on five Tokyo Metro lines. The development is owned and operated through Otemachi One Management Co., Ltd., a joint venture established on July 28, 2017 between Mitsui & Co., Ltd. and Mitsui Fudosan Co., Ltd. with ¥50,000,000 in registered capital. The portfolio combines office space in the Mitsui & Co. Building and Otemachi One Tower, a 6,000 m² public garden with seven themed zones, the Otemachi Mitsui Hall event venue, eight conference rooms (25–289 m²) accommodating up to 300 people, the Four Seasons Hotel Tokyo at Otemachi on floors 34–39, an underground retail avenue with approximately 30 outlets, and the &BIZ membership facilities (fitness, conference, dining/co-working) reserved for building tenants.

The property's underlying technology comprises a centralized building management system controlling air conditioning via an Azbil platform, a QR-code and reception-number visitor entry system, a 360° virtual tour for the conference venue, and LINE/Instagram marketing channels. The complex achieved SME-version SBT (Science Based Targets) certification in December 2025, committing to a 42% reduction in Scope 1 and 2 GHG emissions by 2030 versus a 2024 baseline, with renewable electricity already procured via non-fossil certificates.

Revenue mechanics are diversified across recurring streams: office and commercial rent (building rental / 建物賃貸業), recurring retail tenant rent, conference and hall rental fees (one-time license model), &BIZ fitness and conference subscriptions, and parking transaction fees. Go-to-market combines enterprise field sales for office leases and conference bookings, retail storefront operations for the 30 outlet avenue, and event-driven foot traffic activation through the garden. Customer segments anchor on office tenants and event organizers, with the Four Seasons hotel and a Sumitomo Mitsui Banking branch extending reach into luxury hospitality and consumer banking segments. The management entity itself operates with a lean team of 24 staff, suggesting revenue capture centered on management fees, amenity operations, and direct conference, fitness, parking, and event income rather than consolidated pass-through of total asset rents.

Name

Otemachi One

Legal name

Otemachi One Management Co., Ltd. (オオテマチワンマネジメントカブシキガイシャ)

Website

https://otemachi-one.com

Company type

Private

Founded year

2017

Operating status

Operating

Short description

Otemachi One is a Tokyo mixed-use complex managed via a Mitsui & Co./Mitsui Fudosan joint venture, combining office towers, a 6,000 m² garden, conference and event facilities, the Four Seasons hotel, retail outlets, and tenant &BIZ amenities, serving enterprise office tenants, event organizers, and visitors.

Ownership category

akta.pro rank

Product category

Mixed-Use Commercial Real Estate

NAICS

Hotels (except Casino Hotels) and Motels (721110), Accommodation (721), Traveler Accommodation (7211)

SIC

Hotels, Rooming Houses, Camps & Other Lodging Places (7000), Hotels & Motels (7011)

akta.pro primary industry

Integrated Full-Service Hotel Complexes (Mixed-Use) (THAGAAAL)

akta.pro secondary industry

Large-Scale Headquarters Convention Hotels (THAGALAH)

Keywords

• Mixed-use real estate
• Commercial property management
• Office space leasing
• Conference venue rental
• Retail space leasing

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Infrastructure, Marketing or Sales, Others

Revenue model

1. Building Rental (建物賃貸業): Primary revenue stream from leasing office and commercial space to tenant companies in Mitsui & Co. Building and Otemachi One Tower.
2. Conference Facility Rental (大手町三井カンファレンス): Revenue from renting conference rooms (8 rooms, 25-289 sqm) to event organizers for meetings, seminars, training, and corporate events. Catering services also available.
3. Convenience Facilities Membership (&BIZ施設): Premium membership facilities including fitness (monthly plans ¥6,500-9,000), conference rooms (hourly/daily rates), and dining/co-working space for office workers in the buildings.
4. Parking Services: Parking facility revenue with hourly rates (¥400/30 min during business hours, ¥100/60 min overnight) and contract parking options.
5. Retail Tenant Rent: Approximately 30 commercial outlets including restaurants, cafes, clinics, pharmacies, and services, generating rental income from retail tenants.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Otemachi One operates a mixed-use commercial real estate complex in central Tokyo, combining Grade-A office towers, approximately 30 retail/dining outlets, conference and event venues, a Four Seasons luxury hotel, an urban garden, and member-only fitness and dining amenities. Revenue is earned primarily through building and retail rental, conference and hall bookings, &BIZ facility subscriptions, and parking services, with the property managed centrally by Otemachi One Management Co., Ltd.

Product overview

Otemachi One is a mixed-use commercial real estate complex developed by Mitsui & Co. and Mitsui Fudosan in Otemachi, Tokyo. The portfolio consists of Otemachi One AVENUE (underground shopping and dining area with approximately 30 retail outlets), Otemachi One GARDEN (6,000 m² green space with seven distinct zones), Otemachi Mitsui Hall (event venue with 700m² hall), Otemachi Mitsui Conference (8 conference rooms accommodating up to 300 people), the Four Seasons Hotel Tokyo at Otemachi (luxury hotel on floors 34-39), and &BIZ facilities (member-only conference rooms, fitness center, and cafeteria/co-working space for tenants). The development also includes clinic facilities and a running station to support office worker health.

Differentiator

Problem solved

Functional benefit

Brands

• Otemachi One Avenue: Commercial area with approximately 30 shops and restaurants
• Otemachi One Garden
• Otemachi Mitsui Conference
• &BIZ Facilities

Products and services

• Otemachi One AVENUE Underground retail and dining area (B2F and B1F) featuring approximately 30 commercial outlets including diverse restaurants, cafes, clinics, a pharmacy, a bookstore (Books Kinokuniya), and a convenience store, directly connected to Otemachi Station for office workers, hotel guests, and the general public.
• Otemachi One GARDEN 6,000 m² urban green space with seven zones (Imperial Forest, Succession Forest, Flower Garden, Shade/Water Garden, Imperial Green, ENGAWA Terrace, Gateway Plaza) and approximately 3,000 m² of event-ready lawn. Open year-round for nature events, art installations, and relaxation, supporting carbon neutrality and biodiversity efforts.
• Otemachi Mitsui Hall Event hall with approximately 700 m² main hall and 380 m² foyer, featuring a 7-meter high glass wall overlooking the Imperial Palace. Suitable for international conferences, presentations, live music performances, and corporate events.
• Otemachi Mitsui Conference Conference facility with eight meeting rooms (25 m² to 289 m²) accommodating 6 to 300 people, located on Mitsui & Co. Building 3F and 4F. Features video/audio equipment, free Wi-Fi, catering services, and on-site coordinator support; reservations can be made up to one year in advance with a price revision applied for bookings from April 2026 onward.
• Four Seasons Hotel Tokyo at Otemachi Luxury hotel occupying floors 34-39 of Otemachi One with Imperial Palace views, offering multiple dining venues including the VIRTÙ cocktail bar, EST French restaurant, PIGNETO Italian restaurant, and THE LOUNGE cafe lounge. Operated by Four Seasons Hotels and Resorts.
• &BIZ Fitness Premium membership fitness center exclusive to office workers in Mitsui Building and Otemachi One Tower. Features latest training machines, rental equipment (towels, wear, shoes, socks), and private lockers; monthly plans range from ¥6,500 to ¥9,000 with Flex 4 and one-time use options.
• &BIZ Conference Exclusive meeting rooms for tenant companies with seven rooms accommodating 6 to approximately 100 people on Tower 5F. Features theme-based interior design (SKY, SUN, CLOUD, SHINE, RAIN) and adjacent dining facilities for parties.
• &BIZ Dining Cafeteria and co-working space for tenant office workers, combining food service with work areas and artistic interior design blending food, art, light, music, and greenery. Open Monday-Friday 7:00-19:30 with advance reservation-based access.
• Otemachi One Parking Services Parking facility serving Otemachi One visitors and tenants with hourly rates (¥400/30 minutes daytime, ¥100/60 minutes overnight) and bicycle parking at ¥100/2 hours, plus contract parking options.

Quantifiable outcome

• GHG emissions reduced via renewable electricity implementation (non-fossil certificates already achieved ahead of 2030 target)

Named customers5 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature3 records

Partnerships

Six partnerships are on record, tiered core, flagship and minor.

• Mitsui & Co., Ltd. (三井物産株式会社)coreStrategic or Co-development PartnerMitsui & Co. is the co-developer and major shareholder of Otemachi One. The company's headquarters is located within the Otemachi One development. As co-owner, Mitsui & Co. participates in strategic decisions for the development through the management company.
• Mitsui Fudosan Co., Ltd. (三井不動産株式会社)coreStrategic or Co-development PartnerMitsui Fudosan is the co-developer and major shareholder of Otemachi One. The company provides building management services through its subsidiary Mitsui Fudosan Building Management. As co-owner, Mitsui Fudosan participates in strategic decisions for the development.
• Otemachi One Management Ltd. (Otemachi Oneマネジメント株式会社)coreStrategic or Co-development PartnerProperty management company jointly established by Mitsui & Co. and Mitsui Fudosan. Manages building operations, common areas, tenant services, and environmental compliance including SBT certification.
• Four Seasons Hotels and ResortsflagshipStrategic or Co-development PartnerFour Seasons Hotel Tokyo at Otemachi operates on floors 34-39 of the Otemachi One development, offering luxury accommodation and dining. This partnership positions Otemachi One as a premier business and leisure destination.
• Mitsui Fudosan Building Management (三井不動産ビルマネジメント)coreImplementation/ SI/ Consulting PartnerProvides building management services for Otemachi One, including conference facility operations and building maintenance. Manages Otemachi Mitsui Hall and Conference facilities.
• Central Security Services (セントラル警備保障株式会社)minorImplementation/ SI/ Consulting PartnerSecurity services provider for Otemachi One, participating in joint use of personal data for emergency contact and safety management purposes.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Mitsui Fudosan Co., Ltd. Mitsui Fudosan is the 50% JV partner and parent developer of Otemachi One, operating Tokyo Midtown, Marunouchi Building, and many other mixed-use assets. Directly comparable as a major Japanese real estate developer whose broader portfolio competes with and complements Otemachi One.
• Mori Building Co., Ltd. Mori Building is one of Japan's premier urban redevelopment companies, operating Roppongi Hills, Toranomon Hills, ARK Hills, and other mixed-use complexes. Comparable as the leading Tokyo mixed-use developer whose portfolio directly competes with Otemachi One for premium tenants and brand positioning.
• Imperial Hotel Tokyo: Imperial Hotel is a historic luxury hotel located near the Imperial Palace in central Tokyo with conference and event facilities. Comparable as a long-standing luxury hospitality-and-event operator in the same Tokyo prestige district, competing for the same high-end guests and corporate events.

Regional players

• Otemachi Tower / Otemachi Park Building: Otemachi Tower is a nearby mixed-use office complex in the Otemachi district directly competing for the same corporate tenants, visitors, and retail spend. Highly comparable as a same-district peer with overlapping office, retail, and conference offerings.

Direct peers

• Four Seasons Hotels and Resorts: Four Seasons operates the anchor hotel at Otemachi One (floors 34-39). Comparable as the hotel operating partner and as a comparable luxury hospitality operator in central Tokyo whose performance directly affects the complex's brand and footfall economics.
• Roppongi Hills: Roppongi Hills is a Mori Building-developed mixed-use complex in Tokyo featuring the Grand Hyatt hotel, offices, retail, residences, and cultural facilities. Comparable to Otemachi One in scale, mixed-use integration, and centrality of the Tokyo business district.
• Tokyo Midtown: Tokyo Midtown is a large mixed-use complex in Roppongi developed by Mitsui Fudosan, combining the Ritz-Carlton hotel, offices, retail, conference facilities, and a 4,000 sqm garden. Directly comparable to Otemachi One in mixed-use composition, transit connectivity, and developer profile.
• Toranomon Hills: Toranomon Hills is a Mori Building mixed-use development featuring Andaz Tokyo hotel, offices, retail, residences, and conference spaces. Comparable to Otemachi One in modern mixed-use format, premium positioning, and integration of hotel-anchor-plus-office-plus-retail.
• Marunouchi Building: Marunouchi Building is a Mitsui Fudosan-developed office-led complex in the Marunouchi business district adjacent to Tokyo Station, featuring premium office space, retail, and dining. Comparable as a sister Mitsui Fudosan mixed-use asset with similar office-plus-retail economics in central Tokyo.
• Tokyo Square Garden: Tokyo Square Garden is a mixed-use redevelopment in the Kyobashi area featuring offices, retail, a hotel, and public space directly connected to Kyobashi Station. Comparable as a central Tokyo mixed-use complex with transit connectivity and a similar blend of office, retail, and public amenities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/otemachi_one_official

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Otemachi One