Cadastral and Isolated Surveys - Concept Map
Land Parcel Boundary Documentation and Registration
Related concepts
Types of Land Surveys
Sub concepts
- Cadastral Survey (systematic, all parcels)
- Isolated Survey (individual parcel)
- Public Land Survey
- Mineral Survey
- Special/Relocation Survey
Relationship to central
Foundational classification determining survey scope and methodology
Cadastral Survey Framework
Sub concepts
- Lot numbering system
- Cadastral block/case identification
- Bearing and distance description
- PRS92 datum reference
- DENR-LMB approval workflow
Relationship to central
Systematic municipal/city-wide boundary establishment process
Isolated Survey Operations
Sub concepts
- Individual parcel selection
- Geodetic control connection
- Boundary verification
- Tied coordinates establishment
- Land registration support
Relationship to central
Single-parcel survey methodology for specific purposes
Monumentation and Control Ties
Sub concepts
- Monument types (concrete, BL, BLLM markers)
- Tie line definition and purpose
- BLLM (Bureau of Lands Location Monument)
- Absolute coordinate establishment
- Long-term boundary recovery
Relationship to central
Physical and spatial anchoring of parcel boundaries to absolute reference system
Parcel Identification System
Sub concepts
- Lot number assignment
- Cadastral block designation
- Cadastral case reference
- Technical description (bearings, distances)
- Corner monumentation
Relationship to central
Systematic naming and location convention for cadastral records
Geodetic Reference Framework
Sub concepts
- PRS92 (Philippine Reference System 1992)
- WGS84 relationship
- PPCS/UTM grid system
- Control point hierarchy
- Absolute positioning
Relationship to central
Datum and coordinate system standards ensuring consistency and accuracy
Institutional and Legal Framework
Sub concepts
- DENR-LMB authority
- RA 4374 (Land Registration Act)
- RA 8560 (Amendments to Land Registration)
- PD 1529 (Property Registration Decree)
- CA 141 (Public Land Act)
- Torrens registration system
Relationship to central
Regulatory and administrative requirements governing survey execution
Cadastral Data Output and Use
Sub concepts
- Cadastral maps
- Lot data sheets
- Technical descriptions
- Coordinate records
- Torrens registration support
Relationship to central
Products and applications derived from survey work
Concept connections
- Cadastral SurveyIsolated SurveyCadastral survey covers all parcels in an area; isolated survey covers single parcel, both reference cadastral framework
- Parcel Identification SystemCadastral Data OutputLot/block/case numbers directly populate cadastral maps and data sheets
- MonumentationTie LineMonumentation marks corner location; tie line connects monument to BLLM for absolute positioning
- PRS92 DatumAbsolute CoordinatesPRS92 is the reference system within which all parcel coordinates are computed and referenced
- DENR-LMBCadastral SurveyDENR-LMB has authority to approve and oversee all cadastral and isolated surveys
- Cadastral Data OutputTorrens RegistrationCadastral maps and lot data directly feed the Torrens land registration system
- Land LawsDENR-LMBRA 4374, RA 8560, PD 1529, CA 141 establish legal framework governing DENR-LMB authority
- Bearing and DistanceTechnical DescriptionMeasured bearings and distances form the core of parcel boundary technical descriptions
- BLLM MonumentIsolated SurveyIsolated surveys must tie to nearest BLLM to establish absolute coordinates
- Geodetic ControlMonumentation SystemGeodetic control points like BLLM serve as reference monuments for parcel corner ties
- Cadastral BlockCadastral CaseCadastral blocks are subdivisions within a cadastral case
- Monument RecoveryBoundary RelocationMonumentation and absolute coordinates enable accurate boundary recovery and relocation
- PRS92WGS84PRS92 is derived from WGS84 with Philippine-specific adjustments
- PPCS UTMAbsolute CoordinatesPPCS/UTM grid system provides planar projection of PRS92 coordinates
- Isolated SurveyBoundary VerificationIsolated surveys often verify and relocate existing parcel boundaries for retitling or fencing
- Cadastral MapLot Data SheetCadastral maps and lot data sheets work together as complementary cadastral outputs
- Tie LineAbsolute PositioningTie lines establish spatial linkage to absolute reference system via BLLM
- Control HierarchyMonument TypesDifferent monument types mark different levels within the geodetic control hierarchy
Diagrams
Cadastral and Isolated Surveys - Comprehensive Concept Map
Comprehensive mind map showing the hierarchical organization of cadastral and isolated survey concepts, from survey types and frameworks through monumentation systems to institutional requirements and legal references. Illustrates how all components interconnect within the broader land documentation system.
Cadastral Survey Execution Workflow
Step-by-step workflow showing the parallel execution paths for cadastral and isolated surveys, from project initiation through monumentation, boundary measurement, coordinate computation, and final registration. Emphasizes the critical role of geodetic control ties and DENR-LMB approval.
Tie Line and Monument Verification Process
Detailed process for establishing and verifying tie lines between parcel corners and BLLM monuments, ensuring absolute positioning on PRS92 datum. Shows decision points, verification steps, and tolerance checks critical for reliable cadastral data.
Parcel Identification and Documentation System
Systematic documentation structure showing how parcel identification flows from cadastral case through block and lot numbering, to detailed technical descriptions with bearings, distances, and monument information. Final records support Torrens land registration.
Cadastral Survey Approval and Registration Sequence
Sequential interaction diagram showing the approval workflow from geodetic engineer initiation through field surveys, monument placement, DENR-LMB regional office review, and final Torrens registration. Illustrates institutional collaboration and validation gates.
Parcel Survey Status Lifecycle
State diagram illustrating the progression of a parcel through the cadastral survey lifecycle, from initial identification through monumentation, measurement, documentation, DENR review, and final Torrens registration. Shows decision points and resubmission paths.