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Road access, boundaries and levels: documents to obtain before buying land

Road access, boundaries and changes in level require different records and professional checks. A visible road, wall or open area does not establish building eligibility or the extent of ownership.

KODACHI DEVELOPMENT Editorial Team
Published and sources checked: 9 November 2026

A framework for the decision

  1. 01Road status
  2. 02Boundaries and area
  3. 03Levels and layout

Editorial diagram. Confirm the sequence and responsibilities for the individual project.

01 / INSIGHT

Identify the road’s status

A paved road used by vehicles still needs its building-law status and connection to the plot confirmed by the relevant authority. Ownership, maintenance, passage and excavation rights are separate questions. Keep the location plan attached to each response.

02 / INSIGHT

Reconcile boundary evidence

The Ministry of Justice explains the importance of boundary markers and consulting a land and house investigator. Compare cadastral maps, survey plans, confirmation documents and physical markers. Do not automatically treat a wall as the ownership boundary; resolve missing evidence or differing understandings before the transaction.

03 / INSIGHT

Turn levels into a section

Show retaining walls, drainage, gradients and proposed buildings in section. Establishing a boundary does not establish the condition of a retaining wall or feasibility of earthworks. Ask qualified professionals which investigations and repairs are needed, and price them separately from the land.

Before the consultation

ItemWhat to establish
RoadMatch the authority’s answer to the precise location.
BoundaryCompare drawings, markers and confirmation records.
SectionInvestigate walls, runoff and access gradients.

Sources and authorities

Original publications are in Japanese. Confirm property-specific conditions with the responsible authority.

  1. 法務省・土地の境界トラブル防止
  2. 沖縄県・建築の相談案内

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