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Clementi Emerald Sun Analysis

Published: 22 September 2025By Shawn Tan
Clementi Emerald Project Overview

Looking for the best units in Clementi Emerald that avoid afternoon sun? This comprehensive guide reveals the top energy-efficient units in the July 2025 BTO launch that will keep you cool and save money on electricity bills by avoiding the afternoon sun.

Clementi Emerald Project Overview

Clementi Emerald was introduced in the July 2025 BTO launch, bringing a fresh green development to Singapore's housing landscape. Located at the intersection of Clementi Avenue 6, Clementi Avenue West and Clementi Close this project comprises 3 residential blocks of 40 storeys each, offering a total of 753 units.

The development features thoughtfully designed 2-room, 3-room and 4-room flats, all classified as Prime flats under the new HDB classification system.

Why Avoiding Afternoon Sun is Crucial

In Singapore's tropical climate, the afternoon sun can turn your home into an oven. It leads to:

  • 🔥 Unbearably hot bedrooms — even with fans, solar films and curtains
  • 💸 Higher aircon bills — often up to 50% more
  • 🌙 Walls that radiate heat well into the night
  • 🧰 Faster wear and tear on aircon units

For those working from home or children studying, the heat isn't just uncomfortable — it affects focus, well-being, and can cause fatigue or headaches.

Real Stories From Sun-Facing HDB Homes

Don't just take our word for it. These Reddit users shared their real struggles living in sun-facing HDB units:

These real experiences show how harsh afternoon sun can seriously impact comfort, focus, and well-being.
The good news? It's completely avoidable — if you choose the right unit.

Two Side-by-Side Homes — One Big Difference

See how we can help you choose a home without harsh afternoon sun.

Neighboring units comparison

At first glance, these two neighboring units look nearly identical. Same block, same layout — so either one should be fine, right?

But one of them is hit hard by direct afternoon sun, making it noticeably hotter, less comfortable, and more expensive to cool.

The animations below show how sunlight moves through each unit over the course of the year. The arcs represent the path of the morning sun (E) and afternoon sun (W), which shifts throughout the year.

Unit Sun Direction Analysis

Why Unit 565 is Problematic

This unit gets direct afternoon sun on its master bedroom wall throughout the year. That wall absorbs heat and releases it well into the night — making sleep uncomfortable even after sunset.

From April to August, afternoon sun (W) also enters the room windows, raising indoor temperatures and increasing reliance on aircon.

Why Unit 567 Works

This unit is shielded from afternoon sun by the neighboring unit. The master bedroom wall receives direct morning sun, but this is more tolerable since most people are away at school or work in the morning and afternoon, and the wall would have cooled down by evening.

From April to August, morning sun (E) enters the room windows, helping to remove humidity and keep the space fresh and comfortable without overheating.

Clementi Emerald: Which Units are the Best to Avoid Afternoon Sun?

Clementi Emerald Site Plan with Best Units Highlighted

Best 4 Rm unit: Block 437A stack #106

The stack does not receive any direct afternoon sun through out the year as it's shaded by it's neighbouring stacks. However, it gets direct morning sun through out the year and for 10 months of the year, it's master bedroom wall receives direct sun making it unsuitable for those who like to sleep in.

Eyeing Other Units? We Can Help

These might be the top units we recommend, but you might be eyeing other units for different reasons - perhaps you prefer distance from the main road, better privacy, or units with superior views. If you're considering other options, we can help you make an informed decision.

Option 1: Do It Yourself

Follow this step-by-step guide to analyze sun exposure for any unit using the Compass Overlay app — available for a one-time purchase of just $4.98 SGD.

Compass Overlay Sun Compass Demo

Frequently Asked Questions

What makes a unit "best" for avoiding afternoon sun?

The best units are those where main living areas (bedrooms, living room) face away from the afternoon sun. This means avoiding west orientations, though the exact sun path varies throughout the year.

Are there other factors I should consider besides sun direction?

Absolutely! While sun direction is crucial for comfort and energy costs, you should also consider factors like proximity to amenities, floor level, facing direction for views, and privacy from neighboring blocks.

How accurate is the sun analysis?

Our analysis uses precise astronomical calculations to determine sun paths throughout the year, ensuring you get accurate information about sun exposure patterns for each unit.

Make Smarter BTO Choices

Choose your Clementi Emerald unit wisely. Avoid afternoon sun, save money, and enjoy comfortable living.

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