Control & standardize
Source datasets were validated against data dictionaries, topology rules and international formats such as CityGML.
Home›Projects›İstanbul 3D Cadastre
Flagship project · Türkiye · 2025
İstanbul 3D Cadastre & Real Estate Management System
Transforming an entire province from two-dimensional cadastral records into an integrated, intelligent and operational three-dimensional spatial reality.
Delivered by MipMap Technologiesin collaboration with Geotech Overseas
~6,000 km²Entire province covered
~1.35 millionBuildings modeled
7 monthsDelivery timeline
240+Specialists
A new dimension for land administration
Not simply a city model. A spatial representation of property, rights and reality.
Three-dimensional cadastre defines property and limited real rights not only through horizontal parcel boundaries, but also through height, depth and volume. Independent units, underground and above-ground facilities can therefore be represented as 3D geometries and connected with title deed, zoning and GIS data.
For the General Directorate of Land Registry and Cadastre, MipMap and Geotech Overseas created a province-wide foundation that brings the physical city, cadastral accuracy and legal reality together in one environment.
From fragmented records to governed 3D data
A seven-month production and integration program.
Existing records were checked against standards, corrected where necessary and transformed into interoperable datasets through purpose-built MipMap applications.
Generate & enrich
Photogrammetric mesh, object-based city models and architectural GML were produced and linked to building and parcel information.
Integrate legal reality
Cadastral, title deed, zoning, ownership, independent-unit rights and use restrictions were aligned on a GIS backbone.
Publish & operate
A 3D GIS-based Real Estate Management System made the complete inventory searchable, analyzable and operational.
1.3M+digitized parcels controlled
~2MPhotoGML records checked and updated
350K+architectural GML records produced or updated
City-scale output, building-level detail
One connected model from urban fabric to independent units.
The project delivers a city-scale 3D cadastre reaching LOD4, supported by photogrammetric mesh and object-based city models. Architectural models are connected with cadastral and legal layers so floors and independent units can be analysed spatially, legally and operationally.
- Comprehensive building-stock and independent-unit inventory
- Architectural models integrated with cadastral and legal data
- Interoperable 3D datasets and purpose-built quality-control tools
- AI-supported property analysis and valuation capabilities
Project impact
A single source of truth for the future of the city.
Trusted land administration
Physical reality, legal layers and spatial data are reconciled in one integrated structure, reducing uncertainty and conflict.
Stronger valuation & planning
Property analysis, valuation, zoning, ownership and land management can be assessed through the same model.
Public-sector interoperability
A common geospatial foundation improves controlled data exchange and coordinated decision-making across institutions.
Ready for what comes next
The platform establishes a foundation for future digital-twin, smart-city and AI-assisted urban applications.
Project video
See the 3D cadastral system in operation.
This technical overview presents the current project platform. It will be replaced with the final project film when that version becomes available.
Open on YouTube ↗From cadastre to city intelligence
Talk to our team →