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Maisonette Apartment Investment: Demand, Profitability, and Key Evaluation Points

An investor-focused guide to maisonette apartments, covering their defining features, target tenant segments, and the key evaluation points for investment decisions such as design appeal, sound insulation, thermal performance, and rental demand by area.

Last updated: About 2 min read

Maisonette apartments are a distinctive property type that can deliver a house-like living environment within a multifamily building. Because demand comes from a narrower tenant segment, sound market analysis is essential when making an investment decision.

What kind of property is a maisonette apartment?

A maisonette is an apartment unit with an internal staircase and living space spread across two or more floors within a single residence.Although it is part of a multifamily property, it can offer a living environment similar to a detached house, and row-style layouts are common. In central urban areas, stacked upper-and-lower configurations can also be found.

From a management perspective, one major feature is that construction costs can be kept lower than with a standard apartment building. With prefabricated construction methods (large-scale factory production), the cost per tsubo is around JPY 700,000 for wood-frame two-by-four construction and about JPY 850,000 for wall-type reinforced concrete. Because a shared entrance is not required, equipment and facility costs can also be reduced.

Who are the target tenants for maisonette apartments?

Single occupants

They are popular among younger renters who value design elements such as internal staircases, atrium-style openings, and spiral staircases. They also tend to appeal to people seeking a lifestyle with a strong focus on interior design.

Families

Because there are no neighboring units directly above or below, families often favor them because noise issues caused by children crying or footsteps are less likely to occur. This can also help reduce the risk of management-related disputes.

Four checkpoints when evaluating an investment in maisonette apartments

1. Choose an area with strong rental demand

Tenants who specifically choose maisonette units are a minority when viewed against overall rental demand. However, in central urban areas or markets with a large renter population, it is still possible to secure a sufficient pool of prospective tenants even if the target demand is narrower.In regional areas with a smaller renter population, vacancy risk rises.

2. For one-room maisonettes, prioritize design quality

If the staircase does not function as a design feature, such as when it is hidden behind a wall, single occupants are less likely to consider the property. It is important to review the actual design before making an investment decision.

3. Confirm soundproofing performance

Even if noise between floors can be reduced, the benefit for family tenants becomes limited if the walls between adjacent units have poor sound insulation. The soundproofing specifications of the walls shared with neighboring units are a mandatory checkpoint before investing.

4. Confirm thermal insulation performance

Because maisonette units are structured so that warm air on the first floor can easily escape upward to the second floor, weak insulation can reduce tenant satisfaction.Please review the insulation specifications and consider insulation work where necessary.

The importance of a real estate partner with maisonette management expertise

Maisonette properties are difficult to evaluate solely in-house because there are few comparable properties in the market for rent-setting and demand analysis. Support from a real estate company with a deep understanding of regional rental-market characteristics can improve the accuracy of an investment decision.For guidance on choosing the right partner, please also refer to How to Choose a Property Management Company for Rental Real Estate.

Frequently Asked Questions (FAQ)

Q1. Are construction costs for maisonette apartments lower than for standard apartment buildings?

When prefabricated construction is used, costs tend to be lower. The fact that no shared common area is required also contributes to cost savings. As a benchmark, around JPY 700,000 per tsubo is typical for wood-frame two-by-four construction.

Q2. What kinds of locations are suitable for maisonette apartments?

Urban areas with strong rental demand from younger tenants and families are generally the best fit. In areas with a smaller renter population, vacancy risk increases.

Q3. What vacancy countermeasures are effective for maisonette apartments?

Well-designed interiors, strong soundproofing, and good thermal insulation are key to attracting tenants. It also becomes easier to build an effective strategy by clearly narrowing the target market to either single occupants or families.

Q4. Is it true that maisonette-style units have limited rental demand?

Compared with overall rental demand, the target segment is certainly narrower. However, in central urban areas with a large renter population, the absolute number of potential tenants can still be sufficient. With the right location, stable occupancy can be expected.

Daisuke Inazawa, President & CEO of INA&Associates Inc.

Author

President & CEOINA&Associates Inc.

President & CEO of INA&Associates Inc. Leads real estate brokerage, rental leasing, and property management across Greater Tokyo and the Kansai region. Specialises in income-property investment strategy and advisory for ultra-high-net-worth individuals.

Daisuke Inazawa is the President and CEO of INA&Associates Inc., a Japanese real estate firm headquartered in Osaka with a Tokyo branch. He leads the company's three core businesses — real estate sales brokerage, rental leasing, and property management — across the Greater Tokyo Area and the Kansai region.

His areas of expertise include investment strategy for income-generating real estate, profitability optimisation of rental operations, real estate advisory for ultra-high-net-worth individuals (UHNWIs) and institutional investors, and cross-border real estate investment. He provides data-driven, long-horizon advisory to investors in Japan and overseas.

Under the management philosophy "a company's most important asset is its people," he positions INA&Associates as a "people-investment company" and is committed to sustainable corporate-value creation through talent development. He also writes and speaks publicly on leadership and organisational culture in times of change.

He has passed eleven Japanese professional qualification examinations: Licensed Real Estate Broker (Takken), Certified Real Estate Consulting Master, Licensed Condominium Manager, Licensed Building Management Supervisor, Certified Rental Housing Management Professional, Gyōseishoshi Lawyer (administrative scrivener), Certified Personal Information Protection Officer, Class-A Fire Prevention Manager, Certified Auctioned Real Estate Specialist, Certified Condominium Maintenance Engineer, and Licensed Moneylending Operations Supervisor.

  • Licensed Real Estate Broker (Takken)
  • Certified Real Estate Consulting Master
  • Licensed Condominium Manager
  • Licensed Building Management Supervisor
  • Certified Rental Housing Management Professional
  • Gyōseishoshi Lawyer (Administrative Scrivener)
  • Certified Personal Information Protection Officer
  • Class-A Fire Prevention Manager
  • Certified Auctioned Real Estate Specialist
  • Certified Condominium Maintenance Engineer
  • Licensed Moneylending Operations Supervisor