Looking for the best units in Stirling Horizon that avoid afternoon sun? This comprehensive guide reveals the top energy-efficient units in the February 2025 BTO launch that will keep you cool and save money on electricity bills by avoiding the afternoon sun.
Stirling Horizon BTO Project Overview
Stirling Horizon was introduced in the February 2025 BTO launch, bringing a fresh development to Singapore's housing landscape. This project comprises multiple residential blocks, offering a variety of well-designed units to cater to different family needs.
The development features thoughtfully designed 2-room Flexi, 3-room, and 4-room flats, all classified as Plus flats under the new HDB classification system. With modern amenities and strategic positioning, Stirling Horizon offers residents both comfort and convenience.
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.
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.
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.
Stirling Horizon: Which Units are the Best to Avoid Afternoon Sun?
Best 2 room unit: Block 186B stack #533
Bedroom will catch direct afternoon sun for a few months of the year but it will be at an angle so the heating would still be controlled. Mid floor units are recommended for optimal sun avoidance.
Best 3 room unit: Block 186B stack #529
Bedroom will catch direct afternoon sun for some months of the year but it will be at an angle so the heating would still be controlled. Mid floor units are recommended for optimal results.
Best 4 room unit: Block 186A stack #515
Bedroom will catch direct afternoon sun for some months of the year but it will be at an angle so the heating would still be controlled. Other units like #505 will get direct sun to the master bedroom walls for the full year. Mid floor units are recommended for optimal sun avoidance.
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.
Option 2: Let Our Experts Help
Short on time or want professional analysis? For just $29.90, we'll analyze 3 units of your choice in Stirling Horizon to show you their year-round sun exposure patterns. This small investment now can save you thousands in energy costs and ensure comfortable living for years to come.
Get Your Stirling Horizon Sun Analysis
What happens next?
- We'll reach out to you within 24 hours for confirmation and payment
- Once payment is received, we'll send you the comprehensive report within 2 business days
- For each unit, you'll get a detailed analysis of how sunlight enters your future home throughout the year — along with the pros and cons of its sun exposure so you can weigh comfort, cooling needs, and natural light preferences.
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.
