Project: A Smart Sanctuary for a Young Family in a Pasir Ris HDB Maisonette

Type: HDB Executive Maisonette
Size: ~1,650sqft
Location: Pasir Ris, East Singapore
Wiring: ✓ No Neutral

Pasir Ris is known for its breezy coastal vibes and spacious Executive Maisonettes (EM). For a young family of three—parents and their energetic 7-year-old daughter—a newly renovated maisonette here wasn't just a home; it was a canvas for a smarter way of living.

At Layman Smart Home, we were tasked with integrating a sophisticated yet "family-proof" automation system into their two-storey home. The goal? Enhance security, simplify the daily routine for busy parents, and add a touch of magic for their daughter, all while working around the traditional wiring found in HDB flats.

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The Challenge: Two Floors, One Network, Zero Neutral Wires#

Renovating a maisonette presents a unique set of challenges. The split-level layout often leads to "dead zones" where smart devices lose connection. Furthermore, like most HDBs in Pasir Ris, the original electrical points lacked a neutral wire, which typically limits your choice of smart switches.

1. The No-Neutral Solution#

To avoid the mess and high cost of hacking walls to pull new wires, we utilized high-end no-neutral Zigbee smart switches. These switches allow for a "one-for-one" replacement of standard wall switches. Despite the lack of a neutral return path, our chosen hardware ensures zero flickering, even with the energy-efficient LED downlights installed throughout the living and dining areas.

2. Bridging the Gap: The Zigbee Mesh#

To ensure the 7-year-old's bedroom upstairs stayed connected to the main hub downstairs, we created a robust Zigbee mesh network. By strategically placing the Zigbee radio dongle right in the middle of the stairwell, we ensured that the signal stretched seamlessly across both floors, providing 100% reliability for every switch and sensor.

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The Brain: Home Assistant Integration#

For this family, a simple "app-controlled" home wasn't enough. They needed true automation. We deployed a Home Assistant server to unify their devices into a single, locally-controlled ecosystem.

Kid-Friendly Lighting & Safety#

For a 7-year-old, reaching for high wall switches can be a struggle. We programmed motion-activated path lighting.

• The "Midnight Path": Between 9 PM and 6 AM, if motion is detected in the upstairs hallway, the lights dim to a soft 10% warm glow—guiding the daughter to the bathroom safely without waking her parents or straining her eyes.

Seamless Security: The Smart Door Lock#

We integrated a Zigbee-enabled smart deadbolt into the Home Assistant dashboard.

• The "Arrival" Sequence: When the parents unlock the door via fingerprint, the "Welcome Home" scene triggers. The hallway lights turn on, and the living room air-con begins cooling the space—a lifesaver after a humid walk back from Pasir Ris MRT.
• Security Alerts: If the door is left ajar for more than 5 minutes, an alert is sent to both parents' phones, ensuring the safety of their child and home.

The "All-Off" Peace of Mind#

With two levels to manage, it's easy to accidentally leave a light on upstairs. We installed a "Master Switch" by the front door. One long press as they leave for school and work triggers a global "Off" command, shutting down every smart switch and appliance in the house instantly.

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The Result: A Home That Works for the Family#

This Pasir Ris project proves that you don't need a massive budget or complex rewiring to achieve a high-end smart home. By combining no-neutral technology with the power of Home Assistant, we gave this family of three more time to focus on what matters—spending quality time together.

At Layman Smart Home, we specialize in making HDB maisonettes smarter, one floor at a time. Whether you're in Pasir Ris, Tampines, or anywhere in Singapore, we're here to simplify your smart home journey.