Smart Apartment — Dubai Marina Tower
Compact smart-home retrofit for a 2-bedroom Marina apartment with lighting, climate, and security automation.
The essentials
- 45 devices deployed over 3 weeks with no construction
- Zigbee mesh selected for RF resilience in high-rise environment
- Split-AC units integrated via IR blasters with temperature feedback
- 18% cooling savings observed in first billing cycle
Project overview
| Feature | Details |
|---|---|
Client | Young Professional (anonymised) |
Area | Dubai Marina |
Property type | 2-bedroom high-rise apartment |
Timeline | 3 weeks |
Customer objectives
Objective 1
Control lighting and AC from smartphone while travelling
Objective 2
Reduce utility bill without manual effort
Objective 3
Video doorbell integration with existing building intercom
Existing conditions
Existing conditions
- Standard wall switches, no neutral wires in most switch boxes
- Two wall-mounted split ACs with basic remote
- Building video intercom with analogue output
Key challenges
Key challenges
- No neutral wire — required battery-powered or two-wire smart switches
- High RF congestion from neighbouring Wi-Fi — mitigated with Zigbee channel selection
- Intercom analogue signal required relay adapter for smart notification
Engineering analysis
Site survey identified limited wiring options; engineering recommended Aqara Zigbee switches (no neutral) and IR blasters for AC. A SIP-to-analogue adapter captured intercom rings for mobile push.
Solution architecture
Zigbee coordinator (ConBee II) attached to Home Assistant mini-PC. All switches and sensors join the mesh; IR blasters control ACs; analogue intercom rings are captured via GPIO relay to trigger mobile notification.
Technologies used
Technologies used
Core platforms and technologies.- Home Assistant· Local automation hub
- Zigbee· Low-power mesh for devices
- IR Blaster· AC control
Protocols used
Communication protocols actually deployed.- Zigbee
- Infrared
- SIP
Products & equipment
Before & after
| Feature | Before | After |
|---|---|---|
State | Manual switches, basic AC remotes, no remote access. | App + voice control, scheduled AC setback, mobile intercom alerts. |
Project timeline
How it works
Week 1
Survey, equipment procurement, Zigbee channel testing.
Week 2
Device installation, mesh stabilisation, IR pairing.
Week 3
Scene programming, intercom integration, customer training.
Project statistics
ROI summary
Sustainability metrics
Sustainability metrics
- AC setback during work hours reduced runtime by ~3 hours/day
- Motion-based hallway lights cut standby energy
Key engineering decisions
Zigbee over Wi-Fi switches
Wi-Fi congestion in Marina high-rises causes dropouts; Zigbee mesh self-heals. — Trade-off: Requires dedicated coordinator dongle.
Risk register
| Feature | Risk | Likelihood | Impact | Mitigation |
|---|---|---|---|---|
Zigbee interference from neighbour's 2.4 GHz router | Zigbee interference from neighbour's 2.4 GHz router | Medium | Low | Channel 25 selected after RF scan. |
Lessons learned
Lessons learned
- No-neutral switches simplify retrofit but limit dimming options
- IR blaster placement critical for reliable AC response
Customer outcomes
Outcome 1
Remote AC control while travelling — apartment pre-cooled before arrival
Outcome 2
Mobile push when visitor buzzes intercom
Outcome 3
Voice commands via Google Home for lights and scenes
Future expansion opportunities
Future expansion opportunities
- Add smart lock when building management approves
- Integrate water leak sensors under sinks
Project Intelligence Score (internal)
Internal analytics only.
Frequently asked questions
Frequently asked questions
Did you need to run new cables?
No — all devices were wireless or used existing wiring.
Can I still use the wall switches manually?
Yes — smart switches retain physical button control.
Smart Citizens Engineering. "Smart Apartment — Dubai Marina Tower." Smart Citizens, 2026-07-08. https://ai.smartcitizens.ae/case-studies/story/dubai-marina-smart-apartment.
Smart Citizens Engineering (2026). Smart Apartment — Dubai Marina Tower. Smart Citizens. Retrieved 2026-07-24, from https://ai.smartcitizens.ae/case-studies/story/dubai-marina-smart-apartment
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