Unit
- Land tenure: The relationship between people and land, defined by legal or customary rights. Tenure systems determine who can use land resources and for how long, influencing survey requirements for ownership transfer.
- Freehold vs leasehold: Freehold provides indefinite ownership, whereas leasehold grants rights for a fixed term. Surveys for freehold parcels require precise boundary definition, while leasehold surveys may focus on area calculations.
- Communal tenure: In many regions, land is held collectively by communities. Cadastral surveys here must document shared boundaries and usage rights, often requiring participatory mapping approaches.
- Formal vs informal tenure: Formal tenure is recorded in government registries; informal tenure relies on local agreements. Surveyors must identify the tenure type to determine the appropriate survey standard and legal evidence.
- Rights and restrictions: Ownership includes rights to use, transfer, and exclude others, but may be subject to easements, covenants, or zoning laws. Surveys must identify and record these encumbrances to ensure clear title.
- Torrens system: A registration method where the state guarantees title. Surveys under Torrens require high accuracy and complete boundary evidence, as the register is conclusive proof of ownership.
- Adverse possession: A person can gain legal title through continuous occupancy without permission. Cadastral surveys may need to measure occupation lines and compare with recorded boundaries to resolve claims.
- Indefeasibility of title: Once registered, a title is generally immune to challenge (except for fraud). Surveyors must provide accurate data to support the indefeasibility principle and prevent future disputes.
- Customary land tenure: In customary systems, land rights are based on lineage, clan, or traditional authority rather than formal titles. Surveyors must work with community elders to document boundaries and use oral histories, often requiring flexible measurement standards that respect local practices and avoid disrupting social structures.
- Strata title and condominiums: Strata titling divides ownership into individual units and common property. Cadastral surveys for strata schemes require detailed floor plans and definition of shared areas such as lobbies and parking. Surveyors must also record unit boundaries in three dimensions, including airspace and subsurface rights, using specialized vertical measurement techniques.
- Leasehold cadastre: In leasehold systems, surveys focus on area calculation and term verification rather than permanent boundary demarcation. Surveyors must verify the lease boundary from the granting document and may need to measure improvements. Leasehold parcels often require periodic resurveys to ensure compliance with lease conditions and to update the cadastral record.
- Co ownership and joint tenancy: Multiple owners holding land together require surveys that define undivided shares rather than physical subdivisions. Surveyors may need to prepare partition plans if co owners decide to sever the joint tenancy. The survey must clearly show the total parcel and indicate proportional interests, often using metes and bounds descriptions with percentage allocations.
System Architecture
Pattern: Land Tenure Classification
Components:
- Ownership layer: Freehold, leasehold, customary, and informal categories define the nature of rights.
- Registration layer: Torrens, deed recording, or customary registration processes validate transactions.
- Restriction layer: Easements, covenants, and zoning overlays modify ownership rights.
- Survey layer: Field measurements and evidence collection feed into the tenure database.
Quick Revision
- Land tenure defines the relationship between people and land, impacting survey methodology.
- Freehold, leasehold, communal, and informal tenures each have distinct survey requirements.
- Rights and restrictions such as easements must be recorded in cadastral surveys.
- The Torrens system guarantees title, requiring high-accuracy surveys.
- Adverse possession claims require measurement of occupation lines.