TerraCity
The spacetime layer for city operations.
TerraCity turns high-resolution imagery, reality meshes, elevation models, city records, market evidence, and future sensor streams into a living operational model of the built environment.
Observe
Understand
Predict
Act
Collapse the time between measurement and action.
Spacetime Model
The where includes time.
Every object, source, record, change, prediction, and action needs a place in space, a place in time, and visible lineage.
- Physical state
- Imagery, mesh, elevation, geometry, condition, confidence.
- Temporal state
- Capture date, change history, update cadence, forecast window.
- Operational state
- Record match, discrepancy, uncertainty, owner, next action.
City Fact
One city fact becomes action.
A roof surface appears in the newest capture. TerraCity does not stop at detection. It places the change in spacetime, links it to parcel history, estimates review priority, and routes an evidence packet.
Parcel, building, permits, declared area, owner, and prior captures linked.
Review priority scored from discrepancy, confidence, comparables, and appeal risk.
High-confidence cases become evidence packets; uncertain cases go to field check.
- Observed
- new roof surface
- Where
- parcel, building, capture date
- Record
- declared area, permits, history
- Route
- review packet or field check
City Reality Layer
A measured baseline that remembers time.
Start with the physical city: buildings, roofs, roads, sidewalks, trees, public space, terrain, utilities, access, and visible infrastructure. Then keep the source, date, lineage, and change history attached.
Imagery
Mesh
Objects
Events
Knowledge
Model the city as objects, events, and relationships.
TerraCity turns the physical surface into a city object graph with geometry, attributes, relationships, confidence, lineage, and change history.
- Geometry
- footprint, roof plane, height, volume, surface, boundary.
- Time
- capture date, change event, update cadence, forecast window.
- Records
- parcel, permit, declared area, assessment, listing, sale.
Fiscal Intelligence
Property assessment from observed spacetime.
Compare observed physical reality through time against declared records, assessments, permits, transactions, listings, and neighborhood context to identify review candidates.
- Observation
- source stack, capture date, geometry, confidence.
- Record
- declared area, permit history, assessment, owner notice.
- Delta
- measured mismatch, comparable evidence, review priority.
- Action
- approve, field check, notify, update, appeal packet.
Operations
One living layer, many city workflows.
Planning, public works, cadastre, assessment, finance, security, defense civil, mobility, utilities, environment, infrastructure, maintenance, and emergency response use the same spatiotemporal evidence base.
Measured Inventory
What the living layer should remember.
Not every signal becomes an action. The product earns trust by measuring what can be observed, attaching evidence, and routing uncertainty to review.
Buildings, floors, roofs, additions, pools, garages, sheds.
Sidewalks, curbs, pavement, surface condition, encroachment.
Trees, canopy, vegetation, water, impervious surfaces, drainage risk.
Declared area, taxable base, assessment signals, permit mismatch.
Access constraints, critical visible infrastructure, maintenance candidates.
Source, date, geometry, confidence, prediction, and review state.
Evidence And Confidence
Every action needs evidence.
A city will not act on a black box. TerraCity preserves the source, date, geometry, confidence, and lineage behind every object, measurement, discrepancy, prediction, and valuation signal.
Observe
Register imagery, orthos, elevation, point clouds, meshes, records, and market sources.
Understand
Turn observations into city objects, relationships, records, events, and context.
Predict
Estimate risk, discrepancy, valuation, degradation, and review priority with evidence intact.
Act
Send high-confidence cases to action and uncertain cases to review with their evidence intact.
Scale
Built for city-scale spacetime data.
TerraCity is designed for full-city imagery, elevation, mesh, vector, record, market, and sensor inputs. Start with one city, normalize the spatiotemporal workflow, and repeat across regions and countries.
Aerial imagery
Reality mesh
Municipal records
Market evidence
Sensor streams
GIS and hubs
Field operations
TerraCity
Build the living operational twin of the city.
A measured, current, evidence-backed model of physical reality so teams can understand what exists, what changed, what it means fiscally and operationally, where risk is accumulating in space and time, and what action should follow.
Partner with Spatioterra