A Saudi villa has 8 to 15 distinct functional zones, entry, majlis, dining, kitchen, bedrooms, bathrooms, gardens. Each has different lux, CCT, and CRI needs. EN 12464-1 doesn't cover residential, but IES RP-11 and BS EN 12464 plus designer convention do. Here's the room-by-room playbook for KSA.
Four ideas to carry into the next specification conversation you have.
Three layers needed. Decorative pendant + downlights + accent on art. CCT 2700-3000K for evening atmosphere.
Undercabinet LED for the counter is non-negotiable. CCT 3000-4000K for accurate food colour.
Bedside reading 300-500 lux focused. Avoid blue-rich evenings (EP59 ipRGCs). 2700K and circadian-friendly.
Vertical illuminance at the face for shaving / makeup. Two side fixtures, never one overhead (shadows under eyes). 4000K, CRI ≥ 90.
Lux, CCT, and CRI minimums by typical residential function.
| Room | Lux | CCT / CRI |
|---|---|---|
| Entry / hallway | 150-200 | 3000K / 80 |
| Majlis (formal) | 150-300 | 2700K / 80 |
| Living / family | 200-300 | 3000K / 80 |
| Kitchen counter | 500-750 | 3500-4000K / 90 |
| Dining table | 200-300 + accent | 2700-3000K / 90 |
| Bedroom | 100-200 + bedside 500 | 2700K / 80 |
| Bathroom mirror | 750 vertical | 4000K / 90 |
| Outdoor entrance | 100 + spot | 3000K / 80 |
Five common KSA residential decisions, and how to get them right.
Multiple scenes: 'arrival' bright welcome, 'seated' dimmed warm, 'tea served' accent on the table. 3-4 DALI groups minimum. Always 2700K to flatter and welcome.
A villa kitchen at 250 lux is dangerous (knives) and infuriating (food prep). 500 lux ambient + 750 lux undercabinet is the standard. Hood lights count as task.
Bad bathroom mirror = bad photos = bad self-image. Side-mounted vertical light at 750 lux, CRI 90+, 4000K. Never the standard overhead downlight on the face.
Path lights + facade uplights + tree spots + entry sconces. 4 layers, not one floodlight. Dark-sky compliant (EP21) and warm CCT (2700-3000K) for nighttime atmosphere.
Wired KNX or DALI for new builds. Wireless (Casambi, Zigbee 3.0) for retrofits. Voice control via Alexa/Google standard at the top tier. Saudi buyers expect it.
Pre-engineered scene libraries for majlis, kitchen, bedroom, outdoor. KNX-certified, voice-control ready. Commissioning in days, not weeks.
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