The Open Source Smart Building Platform for System Integrators
CONTEXUS is an open source smart building platform that helps system integrators ship customised building solutions in weeks instead of months. Six production-ready modules — the Open IoT Hub, 7D BIM Platform, AI Analytics, Energy Management, Cloud Surveillance and Smart AC Control — work together or independently, connected through BACnet, Modbus, LoRaWAN, MQTT and REST APIs. Instead of locking you into a rigid all-in-one suite, every module is open source on GitHub and ready to brand, extend and deploy as your own.
Featured Modules
Faster Deployment
Partners Worldwide
Production-ready IoT dashboards
Explore featured CONTEXUS IoT Hub templates for indoor air quality, digital twin visualisation, smart classrooms, people counting, and industrial park operations — ready to customise for your sites.
Real-Time Smart Parking Digital Twin
Real-time 3D smart parking digital twin — bay occupancy painted live on the deck, EV charger status, turnover heatmaps, and operations KPIs so parking operators see free vs occupied capacity at a glance.
Chiller Plant Digital Twins
Real-time digital twin for chiller plant monitoring and optimisation — live COP, chilled-water supply/return, condenser loads, alarm triage, and energy KPIs on one operational canvas for facilities and energy teams.
Smart Office Building Digital Twins
A smart building digital twin delivered as one self-contained HTML file: no server, no network, no install. A 3D model of an office tower is paired with a dark, immersive operations dashboard covering energy, HVAC, lighting, vertical transport, access control and water — with per-system KPIs, trend charts and annotations anchored to the building itself.
Industrial Park
Explore this interactive **Data Center Digital Twin Command Center** — a live 3D twin dashboard for a modular datacenter campus, delivering unified real-time monitoring of power consumption, cooling performance, IT rack loads, environmental telemetry, and active equipment alarms.
3D Digital Twin Dashboard
Immersive 3D digital twin visualization dashboard featuring real-time building model with IoT sensor overlays, visitor analytics, intelligent IAQ monitoring, active alarm management, and energy consumption tracking. Experience your building in a fully navigable 3D environment.
Indoor Air Quality Dashboard
Comprehensive indoor air quality monitoring dashboard featuring real-time AQI tracking, CO2 levels, zone health status, temperature and humidity monitoring, and HVAC system controls. Perfect for offices, schools, and commercial buildings prioritizing occupant health and comfort.
Powered by Advanced Technologies
CONTEXUS brings together a multi-protocol Open IoT Hub platform, 7D BIM lifecycle management and AI-powered analytics into a single open source smart building framework — powering everything from a single tower to an industrial park digital twin spanning dozens of assets.
IoT Integration Hub
Connect unlimited IoT devices using LoRaWAN, MQTT, BACnet, Modbus, and REST APIs. Our unified platform aggregates sensor data from HVAC, lighting, occupancy, air quality, and energy meters into a single dashboard.
- - LoRaWAN gateway support for wide-area coverage
- - Real-time device health monitoring
- - Automated alert and alarm management
- - Custom dashboard builder
7D BIM Lifecycle Management & Industrial Park Digital Twin
Carry 3D BIM models from design into operations with 4D scheduling, 5D cost, 6D sustainability and 7D lifecycle management. The same models become a living industrial park digital twin — overlaying real-time sensors across multi-building campuses so estate managers can see every chiller, meter and asset in context.
- - Native IFC and Revit support
- - 4D construction sequencing and progress tracking
- - 5D cost and 6D sustainability analysis
- - 7D lifecycle and facility management for industrial parks and campuses
AI-Powered Intelligence
Leverage Large Language Models (LLMs) and machine learning for natural language building queries, predictive maintenance, energy optimisation, and automated insight generation.
- - Natural language building queries
- - Predictive equipment maintenance
- - AI-powered energy optimisation
- - Automated anomaly detection
Built for System Integrators & Facility Managers
Unlike rigid all-in-one platforms, our open source modular framework gives you the flexibility to choose, customise, and integrate exactly what your project needs—with proven ROI.
Lower Development Cost
vs building a custom platform from scratch. Pre-built modules replace months of ground-up engineering work.
Faster Time to Market
Pre-built modules dramatically reduce engineering lead time — from months of custom development down to weeks of configuration and deployment.
Energy Savings
AI-powered optimisation delivers measurable energy reduction. Help clients meet sustainability and net zero targets.
Maintenance Reduction
Predictive maintenance capabilities reduce unplanned downtime. Extend equipment lifespan and lower repair costs.
Accelerated Returns
Accelerate return on investment through faster deployment, lower development costs, and operational savings from day one.
Worldwide Deployment
Cloud-native architecture supports multi-region deployments. Localisation for Asia Pacific, Europe, Americas, and Middle East.
How System Integrators Win with CONTEXUS
From evaluation to scale, we support you at every step. Start delivering smart building solutions in weeks, not months.
Evaluate
Access our sandbox environment and explore all modules. Review documentation and assess fit for your projects.
Customise
Configure modules for your target market. Apply your branding and integrate with existing client systems.
Deploy
Roll out to your first client in weeks. Our team provides implementation support and training.
Scale
Replicate across your portfolio. Add more modules as client needs evolve. Grow your revenue.
Why Not Build From Scratch?
See how CONTEXUS compares to custom development for smart building solutions.
| Custom Development | CONTEXUS | |
|---|---|---|
| Time to Market | 12-24 months | 4-8 weeks |
| Development Cost | $500K - $2M+ | 60-80% Less |
| Technical Risk | High - unproven | Low - production-tested |
| Ongoing Maintenance | Full team required | Minimal - we maintain core |
| New Features | Build from scratch | Add modules instantly |
| Scalability | Requires re-architecture | Built for scale |
Your Smart Building Building Blocks
Six production-ready modules — the Open IoT Hub, 7D BIM Platform, AI Analytics, Energy Management, Cloud Surveillance and Smart AC Control — work together or independently. Mix and match to build the right smart building solution for any portfolio.
Open IoT Hub
LoRaWAN, MQTT, BACnet, Modbus and OPC-UA device management with no-code dashboards
7D BIM Platform
4D scheduling, 5D cost, 6D sustainability and 7D lifecycle BIM in one platform
AI Analytics
LLM-powered analysis of BMS, chiller and AHU data with ASHRAE benchmarking
Energy Management
Real-time submetering, AI optimisation, ISO 50001 and ESG reporting
Cloud Surveillance
Cloud VMS with ONVIF camera support, AI video analytics and multi-site access
Smart AC Control
AI-driven HVAC control for split, VRF, chiller, AHU and FCU systems
Smart Building Solutions for Every Industry
Pre-configured module combinations optimised for specific industries. Customise further to match your exact requirements.
Smart Commercial Building
Open IoT Hub + Energy Management + Cloud Surveillance + 7D BIM
Smart Campus
Open IoT Hub + Energy Management + AI Analytics + ESG Reporting
Data Centre
DCIM + AI Cooling + Asset + Energy + Predictive Maintenance
Smart Hospital
Open IoT Hub + AI Analytics + Cloud Surveillance + Air Quality Monitoring
Smart Hospitality
Guest Experience + Energy + IoT + Maintenance
Smart City Monitoring
Open IoT Hub + GIS Visualisation + AI Analytics + Alerts
Learn from Industry Experts
Stay ahead with insights on smart building technology, multi-protocol IoT, 7D BIM lifecycle management, and AI-powered facility management.
Open-Source Smart Building IoT Platform: How to Integrate BACnet, LoRaWAN, Modbus & OPC-UA Without Vendor Lock-In
For system integrators, property managers, and sustainability teams, Contexus’s open-source IoT framework redefines smart building integration. By unifying BACnet, LoRaWAN, Modbus, and OPC-UA protocols, it removes technical barriers and vendor restrictions, creating a flexible, scalable, and cost-effective foundation for future-proof smart building operations.
How Large Language Models Are Transforming IoT Platform Intelligence
Discover how LLM-powered AI is revolutionizing IoT platforms with natural language interfaces, automated insights, predictive analytics, and conversational building management for smarter operations.
Digital Twins: Transforming Smart Building Operations and Management
Explore how digital twin technology creates virtual replicas of physical buildings, enabling real-time monitoring, predictive maintenance, and data-driven decision making for facility managers.
The Rise of AI-Powered Building Management Systems in 2025
Explore how artificial intelligence is transforming building operations, from predictive maintenance to autonomous energy optimization, delivering 15-25% energy reduction.
Frequently Asked Questions
Ready to Build Your Smart Building Solution?
Join system integrators and facility managers worldwide using CONTEXUS to deliver customised smart building solutions faster, more efficiently, and with proven ROI.