A Shadow Diagram is typically prepared for mid-winter on 21 June and Equinoxes, plus summer in complicated areas, at an hourly rate from 9:00 a.m. to 12:00 p.m. and 3:00 p.m. In a complicated overshadowing, the Council may require an hourly diagram from 9 a.m. to 3 p.m., more hours than just three times a day. We can provide a shadow cast for a certain period and day upon request by the Council.

We demonstrate and answer any overshadowing and solar access concerns. Our shadow asessement enables a flexible and fast shadow diagram that addresses all planning requirements for the Development Application Process. Our data inputs are matches as generated from Geoscience Australia.


We determine compliance with Regulation 83 (Overshadowing) and get an accurate analysis of the amount of sunlight available to the adjoining property, including:
– Differentiation of the shadows cast by the fence and the proposed buildings.
– Calculations for the area of sunlight available to the recreational private open space (RPOS) for adjoining
allotments from 9 am to 3 pm.
– Show the full extent of the neighbor’s allotment and label their recreational private open space locations.