Adelaide climate design
North-Facing Living: Why It Matters in an Adelaide Climate
Quick answer
North-facing living areas capture low winter sun for free heating and stay easy to shade in summer. In Adelaide (latitude 34.9 degrees south), the winter sun tracks low across the northern sky and the summer sun climbs high overhead, so glass on the north wall behind a properly sized eave is the single biggest passive-design decision on any block.
Adelaide sits at roughly 34.9 degrees south latitude. In that band, the sun tracks low across the northern sky in winter and high overhead in summer. That single fact drives almost every good passive-design decision you can make on your block. If your main living space faces north, winter warms you for free and summer stays manageable. If it does not, you fight the climate all year.
Public source: Your Home (Australian Government passive design guide)Watch: Homes By Homes podcast, episode 70
Orientation Tip: How to determine which side living areas should be on
A tight explainer on reading the block map and deciding which wall your living areas belong on. Directly on topic.
Section 1
Adelaide's sun path in one sentence
In June the winter sun peaks at around 32 degrees above the horizon due north; in December the summer sun climbs to around 78 degrees, almost overhead. That means north-facing glass gets deep winter sun but easy-to-shade summer sun.
Section 2
Why north-facing living rooms work
A living room, kitchen, or dining space with north-facing windows sees free solar gain from mid-morning to mid-afternoon in winter. In a well-insulated home with a modest thermal mass floor, that solar gain heats the room without switching on anything. The same window in summer sits under high sun that a 600mm eave can shade out.
Section 3
What to put on the south side
Rooms you use least during the day and where you want cooler, more stable temperatures. Bedrooms are a common south-side choice for hot sleepers. Laundries, bathrooms, garages, and pantries all sit comfortably on the south.
Section 4
East and west explained
East gets low-angle summer morning sun that is hard to shade (the sun rises well south of due east in December). Fine for a breakfast nook or a study you leave by 10am, harder for a room you sit in all day. West is the worst orientation in Adelaide: low-angle summer afternoon sun cannot be shaded by eaves and cooks a room from 3pm until sunset. Keep west-facing glass small, shaded, and if possible for less-used rooms.
Section 5
When north-facing living is not possible
If your block's street frontage faces south or east, north-facing living can still be achieved on a middle or rear zone of the home with clever layout. Talk to a designer specifically about "passive solar orientation" from the first meeting. If a builder tells you it does not matter, that is a signal to keep looking.
Section 6
One test to run on any plan
Ask "which way does the main living area face?" If the answer is not north-ish (north-east through north-west), ask why. There are legitimate reasons (view, block constraints, privacy). There are also lazy reasons (garage went there and pushed everything else around). You want to know which.
What to do next
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Learn moreThis is general climate-design guidance drawn from public sources including Your Home (yourhome.gov.au). It is not a specific engineering, thermal-performance, or solar-installation design. Always work with a qualified building designer, architect, or accredited solar installer to translate these principles into a design for your specific block.