Building Purchase Price Claim — Supreme Court rejects forced purchase of a fractional building interest

Case
Building Purchase Price Claim Case
Court
Supreme Court of Japan, Second Petty Bench (Japan)
Date Decided
August 28, 2026
Citation
令和6(受)2169
Topics
Land leases; Building purchase claims; Co-ownership; Condominium interests

Background

The appellee leased part of its land to A for building ownership. A constructed a condominium building on the leased land and owned an exclusive-use unit. After A died, A’s four children each inherited a one-quarter interest in that unit. The land lease was subsequently renewed for another 30 years beginning in October 2019.

In February 2021, the appellant bought an aggregate three-quarter interest in the unit from three of the children. Contending that the appellee would not consent to the accompanying transfer of the corresponding leasehold interest, the appellant invoked the building purchase claim under Article 14 of the Act on Land and Building Leases and sought the interest’s fair market value plus delay damages. The Tokyo High Court rejected the claim, and the appellant appealed.

The Court’s Holding

The Supreme Court unanimously dismissed the appeal and held that Article 14 does not create a building purchase claim for a fractional ownership interest in a building situated on leased land. The same rule applies when the transferred interest is a fractional interest in an exclusive-use portion of a condominium building.

Article 14 protects investment in buildings and preserves socially and economically useful structures when a transferee cannot obtain consent to a leasehold transfer. But forcing a land lessor to purchase only a fractional building interest would ordinarily draw the lessor into co-ownership, require payment of the interest’s market value, and leave the lessor unable freely to dispose of the building. Because the interest holder may instead recover value through partition of the co-owned property, the need for a statutory purchase claim is weaker than when ownership of the entire building has been transferred.

In a supplemental opinion, Justice Akira Ojima explained that this categorical rule applies even where purchasing the interest would give the lessor ownership of the entire building. He also rejected the argument that Article 14 must be interpreted consistently with Article 19’s treatment of fractional interests, reasoning that judicial authorization of a proposed leasehold transfer and the forced formation of a sale against the lessor’s wishes operate in materially different settings and have materially different effects.

Key Takeaways

  • A transferee of only a fractional interest in a building on leased land cannot invoke Article 14 to compel the land lessor to buy that interest.
  • The rule extends to fractional interests in an exclusive-use condominium unit.
  • Co-ownership partition, including partition through full-value compensation where appropriate, remains the mechanism for recovering the value of the fractional interest.

Why It Matters

The decision establishes a clear limit on Japan’s statutory building purchase remedy: it protects transferees of entire buildings, not buyers of partial ownership interests. Purchasers of fractional interests cannot shift the economic consequences of a landlord’s refusal to consent to the associated leasehold transfer onto the landlord through a forced sale.

The ruling also emphasizes that identical statutory language may be construed differently across provisions when their procedures, legal effects, and allocation of burdens materially differ.

⬇ Download the original opinion (PDF)Archived from the court's official source.
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