Diverse Products and Services

Buildings that support diverse lifestyles

Le Art

"Le Art" is a full-building renovation condominium that breathes new life into an existing structure to create new value. To meet diverse needs in areas with high convenience and location value, we renovate and sell company housing and condominiums that are over a decade old.

We maximize the appeal of properties and contribute to the revitalization of the housing market by supplying high-quality renovated condominiums. Furthermore, renovation significantly reduces carbon dioxide and waste emissions compared to new construction, thus contributing to reduced environmental impact and the realization of a circular economy.

In October 2025, we purchased a building that had been used as company housing and renovated it, and began selling it as "Le Art Shin-Koiwa." This property has been recognized for its facilities, such as community spaces and outdoor spaces, and has received the highest rank of "Advanced Model"* under the " Tokyo Child-friendly Housing Certification System," which certifies high-quality housing that is easy to raise children.

  • * Of the 54 units for sale, 47 are certified units.

Le Ar Shinkoiwa

Fully Renovated Apartment "REZET"

MIRARTH Zestock (formerly Leben Zestock) is developing a renewal resale business in which a single room (section) in a condominium is purchased, renewed, and re-sold. Utilizing this know-how, in December 2025, we launched REZET, a new brand that fully renovates an entire aging apartment building.

Fully Renovated Apartment "REZET"

Urban-type Compact Condominiums "NEBEL"

In recent years, the demand for housing has changed with the increase in the number of dual-earner households and single-person households, and there is a growing need for properties that are more convenient, such as those in the city center or close to train stations, rather than large in size. In response to these lifestyle changes, Takara Leben offers the "NEBEL" series of compact urban condominiums for singles and DINKs (double income no kids).
This series is an urban compact condominium brand that captures the diversified lifestyles of people by maximizing the manufacturing know-how we have cultivated in our new condominium business to date. The quality of design, specifications, and facilities of the family condominiums that we currently supply is retained in these compact condominiums, and the "NEBEL" series is being developed in various locations in Tokyo metropolitan area, Kinki area, Sendai, and other areas. We will continue to provide properties that meet the needs of society, such as modern lifestyles, to further support our customers' fulfilling lifestyles.

Urban-type Compact Condominiums "NEBEL"

High-Grade Rental Condominium “LUXENA”

Takara Leben launched the rental condominium brand “LUXENA” in 2017, drawing on its technical expertise and experience in housing development. The name combines the ideas of “LUXURY living spaces” and “ENABLING a higher standard of life.”
Completed in September 2025, "LUXENA Hirai North" (Sumida-ku, Tokyo) became the first in the "LUXENA" series to obtain the "Tokyo Child-friendly Housing Certification System." 
The "Tokyo Child-friendly Housing Certification System” is a system by the Tokyo Metropolitan Government that certifies high-quality homes that consider residents' safety and ease of housework, and that provide facilities and services that support child-rearing, thereby creating a child-friendly environment. This property was praised not only for its location with playgrounds, childcare, educational, and medical facilities within walking distance, but also for its structure that prevents falls from balconies and open corridors, as well as safeguards against falling objects.

Luxena Hirai North 01
Luxena Hirai North 02

Concept Rental Condominium "LUXENA+"

Takara Leben aims to meet the diversified and segmented housing needs and provide added value to living spaces by launching the new series of rental condominiums called "LUXENA+," which adds a special concept to the High-Grade Rental Condominium series "LUXENA."

This series is characterized by the addition of special concepts to meet needs such as "I want to fully enjoy my hobby of music" and "I want to live with my pet," including condominiums equipped with soundproof rooms in all units and condominiums with on-site dog runs.

"LUXENA+ OTO Minami-Senju"

Launched in February 2025, "LUXENA+ OTO Minami-Senju" (Arakawa-ku, Tokyo) is a rental condominium equipped with soundproof rooms, as its name "LUXENA+ OTO" suggests. While maintaining the sophisticated style that is characteristic of "LUXENA," which boasts high design and comfort, all units are equipped with soundproof rooms of D-70higher and a 200V power supply system, achieving an acoustic environment and quality that meets the needs of professionals, including musicians.

  • * "D-70" is a measured value based on internal testing at “LUXENA+ OTO Minami-Senju.”
Concept Rental Residence: LUXENA+

"LUXENA+ PAWS Fujisawa"

Completed in January 2026, "LUXENA+ PAWS Fujisawa" (Fujisawa City, Kanagawa Prefecture) is not just a typical "pet-friendly" rental property, but a concept-based rental condominium themed around "luxury rental x pet-friendly," designed for living with your beloved life partner.
The shared facilities include a natural grass dog run and a grooming room, and each unit features pet-friendly flooring, wallpaper, and nanoe™ generators. Furthermore, residents can access a reliable 24-hour telephone consultation service (anicom 24*) with veterinarians and other specialists.

  • * anicom24 is a service operated  by Anicom Pafe, Inc.
LUXENA+ PAWS Fujisawa

Commercial Facility Brand "soremo"

Takara Leben has been developing its first commercial facility brand, "soremo," since January 2026. Offered by Takara Leven, "soremo" is a commercial facility brand where, true to its name, meaning “This, too. That, too,” everything you want comes together.
As a hub that revitalizes local communities and supports people's lives, we plan to gradually expand soremo mainly in major cities across Japan. Following the first project built in the center of Sendai City, Miyagi Prefecture, “soremo Sendai Higashi Nibancho Street," we are currently constructing “soremo Ginza 6-chome (tentative name)” in Chuo Ward, Tokyo. We aim to create a facility that brings new vibrancy and value to the Ginza area, where people from all over the world gather.

"soremo" brand diagram

Logistics Facility Brand "L.PORT"

Takara Leben has launched the logistics facility brand "L.PORT." The new brand "L.PORT" combines the initials of "LOGISTICS" and "LEBEN," with "PORT," meaning port or gate.
In December 2025, the first property, "L.PORT Miyoshi," was completed in Miyoshi City, Aichi Prefecture. Located in a prime location with access to both the Mikawa area, where manufacturing is concentrated, and Nagoya City, it adopts a "low-floor" platform tailored to the needs of the Mikawa area and is equipped with 12 berths. By installing solar panels on the rooftop and using the generated electricity within the facility, we contribute to reducing environmental impact. Additionally, it adopts earthquake-resistant design to ensure safe cargo handling.

Logistics Facility Brand "L.PORT"

Services that Meet Diverse Needs

Idea Competition "Shinjoshiki (New Common Sense) Pic"

PIC stands for "Personal Innovation Challenge," a new business creation system that invites business ideas that leverage employees' knowledge, experience, and free thinking, and aims to commercialize them after internal review. Aiming to create new value for the MIRARTH HOLDINGS, Pic was offered as an opportunity to take on and realize challenges of employees’ own will, and in 2025, it will be held for the fourth time. Applicants refine their ideas through mentoring and training, and take on the final presentation to the executives. Proposals that pass the final review proceed to the acceleration phase (business validation), and if profitability and market viability are recognized, the commercialization is officially decided. Proposers can choose from a variety of career paths, such as “independence as a business company,” “appointment as head of a new department,” or “idea transfer.”

Through our previous challenges using Pic, we have achieved the first-ever patent acquisition for our Group.

Proposals for Diverse Lifestyle Needs

Rainwater Intrusion Points Identification System

MIRARTH HOLDINGS has obtained a patent for a rainwater intrusion location identification system that efficiently and appropriately resolves complex leak issues that frequently occur in buildings, aiming to provide services that ensure peace of mind for residents of condominiums and other apartment buildings. 

The conventional method of locating a water leak is to inject a detection gas that is lighter than air into the leak point (indoor side) and use a detector on the exterior wall (outdoor side) to identify the leak point in the wall.  However, with this method, the detector's inspection range is narrow, so it is necessary to set up scaffolding on the exterior wall and conduct the inspection at close range, which has been an issue in terms of the cost of setting up the scaffolding and the time it takes to identify the leak point.
This patented system injects a safe gas mixture for detection into the leak point and uses a camera that visualizes the detection gas to take images from outside the building, thereby identifying the location of rainwater intrusion. Because scaffolding is not required, it can efficiently investigate leak locations in large buildings such as high-rise condominiums, and is expected to reduce investigation costs and shorten investigation periods.
The system described in this patent was proposed in Shinjoshiki (New Common Sense) Pic.

Renovation in Accordance with the Times and the Region

MIRARTH Zestock (formerly Leben Zestock) offers high-quality pre-owned condominiums that cater to diversifying lifestyles. We purchase used condominiums that are currently renting out, and after the tenants move out, we renovate them to suit the era and region, transforming them into attractive condominiums. We have realized a renovated condominium unlike any before, inheriting the "LEBEN" brand, a newly built condominium that combines high design quality with comfort.

Renovation in Accordance with the Times and the Region
Renovation in Accordance with the Times and the Region

Choice of Leaseback Plans

MIRARTH Zestock (formerly Leben Zestock) offers a 'leaseback' service that allows you to continue living in your current home even after selling. Additionally, we offer three option packages: 'Omakase Leaseback,' 'Mimamori Leaseback' for regular safety checks for seniors aged 65 and over, and 'Ultra-Short-term Leaseback,' which allows you to live by paying only running costs such as property management fees and repair funds, to meet diverse needs.

Choice of Leaseback Plans

GOOD DESIGN AWARD

Our Group has received the GOOD DESIGN AWARD for numerous products and initiatives since its first award in 2013. The GOOD DESIGN AWARD is not simply a competition of outward beauty; it is awarded to anything built for an ideal or purpose, as part of a movement to improve lives and society through design.
Our group deeply resonates with this philosophy and, through our challenge to win this award, continues to pursue our creative achievements to society at large. Beyond mere form-making, we pursue designs that consider the comfort of residents and the resolution of social issues, thereby contributing to the realization of a sustainable society.

GOOD DESIGN AWARD 2013
  • "Solar Power" Project
  • "LUIC" Project
GOOD DESIGN AWARD 2016
  • "Personal Disaster Kits" Project
  • "MOTTO ATTARA IINA (We Wish to Have More)" Project
GOOD DESIGN AWARD 2017
  • "MOTTO ATTARA IINA (We Wish to Have More)" Project
  • "SOCOPOS" Project
  • "LEBEN CRAFT" Project
GOOD DESIGN AWARD 2018
  • "Working Point" Project
  • "Good Working" Project
  • "SOCOTAKU" Project
GOOD DESIGN AWARD 2019
  • "Use of Model Rooms and Sales Centers as Disaster Response Sites" Project
  • "MODIFIABLE DESIGN CONDOMINIUM COMMON AREA" Project
  • Art Biotope "Water Garden" Project
GOOD DESIGN AWARD 2021
  • IoT Delivery Box "THROUGH TAKU" Project
  • "LEBEN KEMIGAWAHAMA GRANVARDI" Project
GOOD DESIGN AWARD 2023
  • "Detached house with business package" - Rental space in your home "CUBE Plan"
Good Design Award 2024
  • LEBEN Ueda Chuo GALLDEA
  • Issuance and explanation of our company's unique  "Guide to Important Disaster Preparedness Information" that describes important disaster prevention information at the time of real estate transactions
Good Design Award 2025
  • LEBEN Higashikawaguchi GRANDEST

"LEBEN Higashikawaguchi GRANDEST"

"LEBEN Higashikawaguchi GRANDEST" is a mixed-use condominium complex seamlessly connecting the station, government office, and residence. As Saitama Prefecture's first PPP (public-private partnership) condominium, this tower boasts the largest and tallest floor in the area, perfectly located just a one-minute walk from the station, featuring public facilities such as an administrative center and police boxes to support citizens' lives. It serves as a model case for projects centered on private housing as the core of urban development. This project aims to resolve regional challenges by constructing a large-scale, mixed-use condominium, a unique solution from our Group, drawing on our extensive expertise in homebuilding to address aging public facilities and enhance citizen satisfaction.

In addition to providing a highly convenient living environment through the integration of housing and public services, the project was recognized for creating open spaces for the local community through the development of public open areas and plazas, and was awarded the GOOD DESIGN AWARD 2025 as a project that transcends the conventional framework of housing.

Good Design Award 2025
LEBEN Higashikawaguchi GRANDEST

“LEBEN Ueda Chuo GALLDEA”

“LEBEN Ueda Chuo GALLDEA” is a 13-story residential building located in the heart of Ueda City, a historic castle town in Nagano Prefecture, developed in response to the city’s initiatives promoting urban function and residential relocation. The property stands along “Unnomachi Shopping Street,” an area with roots stretching back to the Edo period. With its refined, modern façade echoing the character of the castle town of Ueda, this designer residence encourages city-centered living.
The retail space on the first floor is being used as an “Incubation Shop” in collaboration with the Ueda City Federation of Merchants' Association, aiming to support emerging local entrepreneurs and fostering interaction between residents and the local community.  Design-wise, with features such as an approach reminiscent of a solemn cloister, the residence presents a future-oriented compact lifestyle as an attractive and distinctive living space.

Amid the nationwide shift toward compact cities, the project was recognized for promoting a sustainable urban vision that blends historical heritage with modern living, encouraging condominium residents to become part of a historic local community, and was awarded the GOOD DESIGN AWARD 2024 for this contribution.

Good Design Award 2024
“LEBEN Ueda Chuo GALLDEA”

Issuance and Explanation of "Guide to Important Disaster Preparedness Information"

MIRARTH HOLDINGS and Takara Leben have been promoting initiatives to deepen residents' understanding of how to respond in the event of a disaster. As part of this effort, we developed our company's unique "Guide to Important Disaster Preparedness Information," which conveys disaster prevention guidelines tailored to nearby evacuation sites and regional characteristics. In addition to the legally mandated "Explanation of Important Matters” provided at the time of the real estate transaction, this system, which reliably conveys disaster prevention knowledge tailored to each region, was highly regarded as an advanced soft measure that incorporated a wide-area disaster prevention perspective beyond a single building. This commitment to "designing for the safety and security of residents" has been recognized, and this initiative received the GOOD DESIG AWARD 2024.

Good Design Award 2024
Issuance and Explanation of "Guide to Important Disaster Preparedness Information"
Issuance and Explanation of "Guide to Important Disaster Preparedness Information"

"Use of Model Rooms and Sales Centers as Disaster Response Sites" Project

The model rooms created when selling built-for-sale condominiums show customers what completed built-for-sale condominiums will be like and serve as sales negotiation sites. However, they are frequently built for individual condominiums and torn down after all units are sold. We are promoting efforts to open these model rooms to the general public as a disaster prevention center, equipped with preserved food and water essential for daily life in the event of a disaster. This initiative began in FY2019 and has been implemented at all model rooms of condominiums sold by Takara Leben. We will actively use our expertise in efforts such as supplying condominium unit buyers with disaster kits and will expand this initiative.

GOOD DESIGN AWARD 2019
"Use of Model Rooms and Sales Centers as Disaster Response Sites" Project

"10 for All" Safety Assurance Service and "KIT+" Personal Disaster Kits

Our group is committed to going beyond simply providing housing as a "product," and instead pursuing "qualitative richness" that is tailored to the lives of those who live in it. As a symbolic initiative in this regard, we have developed and provided the long-term peace-of-mind guarantee service "10 for ALL" and the personal disaster prevention kit "KIT+ (Kit Plus)."

"10 for ALL" is a system that provides long-term support for peace of mind after handover through extended warranties on home equipment, 24-hour emergency response, and inspections and repairs of private areas. In addition, "KIT+," which won the GOOD DESIGN AWARD 2016, is a folder-file type disaster prevention kit that proposes the habit of each family member thinking for themselves about what they need in the event of a disaster and preparing accordingly. This unique idea, which focuses on "individual needs," was highly praised as a new perspective on disaster prevention at the time.
The knowledge and expertise gained through these initiatives regarding "safe and secure living" form the foundation of our current housing development and service development.

"10 for All" Safety Assurance Service and "KIT+" Personal Disaster Kits
1
Residential Facility and Equipment Extended Warranty (10 Years)
Malfunctions and breakage of articles included within the warranty scope are repaired free of charge every time for the entire duration of the warranty
2
24-Hour Emergency Response + Maintenance Support
In addition to on-site dispatch and initial response for water leaks, trouble with keys, and glass breakage emergencies, service personnel are also dispatched to handle problems with fixtures, entry doors, sashes, and the like
3
Private Area Inspection + Repair Services (5 Years / 10 Years)
Dedicated staff visit customer residences and perform interviews and inspections, repairing any issues that can be immediately addressed (for 5 or 10 years after property handover)

IoT Delivery Box "THROUGH TAKU" Project

With the expansion of online shopping and delivery services, the “increase in redeliveries” has become a social issue. To address this issue and improve convenience for residents, our Group has introduced "THROUGH TAKU," a delivery box built into the entrance, in some of our properties.

"THROUGH TAKU" is a system that installs a delivery box next to the entrance of each condominium unit. Residents can use their smartphones to unlock digital locks and receive the parcels while away from home, thus contributing to a reduction in redeliveries.

Furthermore, it eliminates the inconveniences of conventional shared-area delivery boxes, such as "not being able to use them“ due to a lack of available space" and "the difficulty of having to carry heavy delivery items to one’s residential unit,” proposing a stress-free last-mile delivery solution for both residents and delivery companies.

GOOD DESIGN AWARD 2021
IoT Delivery Box "THROUGH TAKU" Project

LUIC Project, a Unique Water System

The "LUIC" project is an original water system by Takara Leben that focuses on "water" by allowing people to use purified water in all aspects of their lives. Since its launch in 2008, it has been adopted in the company's own brand condominium series, and  by changing "water," which is fundamental to daily life,  the “LUIC” Project has transformed the lives of many people.

The "LUIC" project has continuously evolved by constantly incorporating new technologies. Currently, it consists of "Takara no Mizu," which allows purified water to be used from taps throughout the house; "Takara no Mirabath Vision," which provides a cleansing and warming effect from ultra-fine bubbles simply by soaking in the bathtub; and "Takara no Mirable Shower," which uses water containing ultra-fine bubbles to condition skin and hair quality. “Takara no Mirabath Vision" features advanced functions such as the "Yuragi" rhythmic wave bath and localized spot care, and also features the "Microiony" function, which removes dirt in the bathtub with activated oxygen atoms, making it a facility that caters to a wider range of lifestyle needs.

  • * Functions employed will vary depending on the project.
LUIC PROJECT
LUIC PROJECT
LUIC PROJECT

Adapting to New Lifestyles

Standard Installation of EV Charging Outlets

MIRARTH HOLDINGS and Takara Leben are introducing electric vehicle (EV) charging outlets as a standard feature* in flat parking spaces of new built-for-sale condominiums, including the “LEBEN” series and the “NEBEL” urban compact condominium series.

The EV charging outlets to be introduced will be supplied through flexible installation methods tailored to diverse needs. This includes dedicated parking spaces as well as shared-type systems for multiple users, accommodating varying battery capacities across different vehicle models. A dedicated smartphone app will be used to calculate and manage electricity usage. Users will be charged based on consumption, with payments handled by a third-party billing service and transferred to the condominium management association.

  • * In principle, one outlet will be installed if the parking lot has fewer than 10 spaces. For lots with 10 or more spaces, outlets will be installed for 10% of the total.

Smart Home Service "eLife"

Takara Leben has introduced the smart home service "eLife" in all units of LEBEN Yashio GRANFORDE. By focusing on smart integration of home equipment that is difficult to install after move-in, the property delivers an advanced residential experience equipped with the latest IoT devices.

Through the dedicated smartphone app “HomeLink,” residents can check the status of their home locks while away and lock or unlock doors remotely. By linking the app with the smartphone's GPS, they can also control home equipment on the go, such as automatically starting to fill the bathtub on the way home or adjusting the room temperature via the air conditioner. Other features include automatic curtain operation based on residents' daily routines, automatic lighting control, and temperature and humidity automatic adjustment linked with a humidifier. By leveraging the latest IoT technology, we provide residents with comfortable and highly convenient living spaces.

Smart Home Service "eLife"
Smart Home Service "eLife"

“Pabbit,” Convenient Parcel Pickup on Your Floor, Even When You're Away

In the logistics industry in recent years, a serious shortage of drivers and an increase in redeliveries have become pressing issues, and improving transportation efficiency is now essential. Since trucks and other vehicles used for transporting parcels emit CO₂, reducing redeliveries also helps lessen environmental impact.

Takara Leben has introduced "Pabbit" at LEBEN Wako THE GRANDE, the first large-scale condominium with over 300 units, to install dedicated delivery boxes on each floor for every residence. Even when residents are away, parcels can be securely received. Leben Community is also working to expand the system across other condominiums it manages. With Pabbit, partnered couriers can use a tracking number to unlock the security system and deliver packages directly to the floor-specific box for each unit. This reduces the need for redelivery. By easing the stress of waiting for deliveries or handling heavy packages, and by cutting CO₂ emissions from repeated trips, it also contributes to environmental goals and supports the achievement of the SDGs.

“Pabbit,” Convenient Parcel Pickup on Your Floor, Even When You're Away

Non-Touch Keys and Non-Contact Elevators

At Leben Yokohama Yamate ONE WARD COURT (Kanagawa Prefecture), a property completed in February 2023 to commemorate the 50th anniversary of the founding of the Takara Leben Group*, facilities that take into consideration the lifestyle of the New Normal, provide security and safety for residents. When residents enter the building from the outside, they can unlock the auto-locking door without touching it by simply passing the dimple key (with built-in IC chip) of their unit entrance over the sensor at the common entrance. Elevators are also equipped with a function that allows users to operate floor buttons simply by holding their hands over them.

  • * Developed to commemorate the 50th anniversary of the company's founding (September 21, 2022), the property is positioned to "contribute to the infrastructure development of the local community with a location that could become a new landmark, such as a or prestigious site or a rare location."
Non-Touch Keys and Non-Contact Elevators
Non-Touch Keys and Non-Contact Elevators

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