Shadow Check in The Hills Shire, NSW
See how much shadow neighbouring buildings cast on your The Hills Shire property at the summer and winter solstice. Large established homes on sloping terrain create shadow risk on downslope neighbours, particularly in late afternoon on east-west running streets. The Hills Shire has 223 heritage items — character buildings can cast unexpected shadows. Shadow analysis works best alongside a solar yield estimate — shading directly reduces panel output. If you are planning a granny flat, check SEPP eligibility and nearby development activity in The Hills Shire.
Analysis points
Summer + Winter
solstice comparison
ADG check
3hrs direct sun
NSW min. standard
Heritage items
223
in The Hills Shire
Shadow and overshadowing in The Hills Shire — common questions
Is shadow a risk in The Hills Shire?
Shadow risk in The Hills Shire is moderate. Larger homes on sloping terrain can cast long shadows on downslope properties. Two-storey dwellings are common across the LGA, and while lot sizes are larger than inner Sydney, terrain effects can concentrate shadow impact.
What causes shadow issues in The Hills Shire?
The main causes are large 2-storey homes on elevated lots that cast shadows on lower-lying neighbours, and secondary dwelling additions to rear yards. In growth precincts like Box Hill, new multi-dwelling developments can affect established single-storey neighbours.
Does terrain make shadow worse in The Hills Shire?
Yes in parts of the LGA. Properties on north-facing slopes are generally less affected, but south-facing or east-west running streets can experience shadow earlier in the day from upslope neighbours. The seasonal shadow tool above accounts for actual terrain elevation from satellite data.
More property checks for The Hills Shire
Shadow analysis uses building footprints and height data from NSW Spatial Services aerial imagery. The ADG 3-hour minimum applies to habitable rooms in new residential development assessed under the Apartment Design Guide. Results are indicative only -- actual shadow impact depends on exact roof pitch, vegetation, and neighbouring building heights. Not planning advice.