No Subletting or Short-Term Rentals in Leased Apartments—Why It's Prohibited and What You Need to Know
Subletting rental housing or using it for short-term rental services is generally prohibited. This article explains why such practices are forbidden, the significant risks of violating these rules, and the legal framework that supports them.
When a tenant renting a residential property subleases the space to a third party, this is known as "subletting." For example, renting out a room in a condominium you lease to a friend for a fee, or registering it on short-term rental platforms like Airbnb or Jalan Vacations to accommodate travelers, falls under this category.
Short-term rentals involve providing paid accommodation services to travelers by utilizing vacant rooms or properties. With the enforcement of the "Residential Accommodation Business Law" in 2018, short-term rentals became legal under certain conditions. However, they are strictly limited to "residential properties you own" or "properties for which you have the landlord's explicit permission." Using a rental property for short-term rentals without the landlord's consent directly violates subletting prohibition clauses.
Legal Basis for Subletting Prohibitions Under Civil Law and Lease Agreements
The primary legal basis for prohibiting subletting is found in Article 612 of the Civil Code. This article stipulates that "a tenant may not transfer the right to tenancy or sublet the leased property without the consent of the lessor." In other words, allowing a third party to use the apartment without the landlord's approval is clearly prohibited by law.
Furthermore, virtually all lease agreements include an explicit "subletting prohibition clause." This clause confirms the provisions of the Civil Code within the lease contract itself, and violation constitutes valid grounds for contract termination. A landlord can terminate the lease and demand that the tenant vacate based on unauthorized subletting.
Why Are Subletting and Short-Term Rentals Problematic?
Prohibition of subletting and short-term rentals is not merely a matter of following rules. These restrictions protect against concrete and serious risks to the landlord, neighboring residents, and the entire building.
First, there is the issue that "the landlord loses track of who actually lives there." Landlords conduct tenant screening and rent to individuals they trust. Once subletting occurs, an unknown third party becomes the actual occupant, and the landlord cannot verify who is using the property.
Next, there is an increased risk of property and equipment damage. With short-term rental use, where unspecified numbers of people frequently move in and out, wear and tear is significantly accelerated compared to normal residential use. In some cases, short-term rental guests damage the property, but the original tenant avoids responsibility and disappears.
Additionally, disturbance to neighboring residents is a serious concern. Reports from across Japan document cases where tourists and foreign travelers entering at late hours, noise disturbances, improper garbage disposal, and damage to common areas have deteriorated the residential environment of entire buildings. Furthermore, accommodating unspecified guests increases the risk of theft, disputes, drug use, and other criminal activities.
Risks of Violation
If you sublet or use a rental property for short-term rentals without the landlord's permission, tenants face various penalties.
The most serious consequence is "immediate eviction (lease termination)." Court precedent recognizes subletting as a "breach of trust," and in some cases, landlords can terminate the contract without issuing a warning. The risk of suddenly losing your home is substantial.
There is also the risk of damages claims. If short-term rental use causes damage to the apartment or building, you may be liable not only for restoration to original condition costs but also for additional damages, including lost rental income that the landlord would have otherwise earned.
You may also face administrative penalties under the Residential Accommodation Business Law. Operating an unregistered short-term rental can result in fines of up to ¥1,000,000 under this law. Even if you do register, operating without the landlord's consent remains a violation of the Civil Code.
How to Legally Operate a Short-Term Rental
The prerequisite for operating a short-term rental is obtaining explicit written consent from the landlord (property owner). Verbal permission often leads to disputes later, so it is essential to document the agreement in writing through a contract or memorandum.
Beyond that, you must register with the prefectural governor under the Residential Accommodation Business Law. You must comply with all legal requirements, including a maximum of 180 business days per year, notification to neighbors, and maintenance of a guest register. For condominium units, you must also verify the building's management regulations, as many condominiums prohibit short-term rentals under their rules. In such cases, you cannot legally operate even with the landlord's consent.
Summary—Follow the Rules for Secure Rental Living
Subletting and short-term rental use in rental properties is generally prohibited under multiple laws including the Civil Code, lease agreements, and the Residential Accommodation Business Law. Actions taken "just for a short while" or "only while traveling" can suddenly result in eviction demands and substantial damages claims.
While I understand the desire for supplemental income, realizing that goal in a rental property requires the landlord's explicit consent and compliance with legal procedures. We strongly recommend consulting with your building management or landlord to avoid unforeseen troubles. Trust is the foundation of a lease relationship. Following the rules ensures secure and stable rental living for the long term.
