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SEPP65 Daylight Compliance

Complete SEPP65 daylighting compliance assessment for NSW apartment buildings — DL-Light produces the required synthesis report covering all SEPP65 criteria.

SEPP65 Australia — NSW
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SEPP65 compliance results on floor plan
Standards

NSW apartment daylighting compliance

SEPP65 (State Environmental Planning Policy No. 65) requires daylighting assessments for apartment buildings in New South Wales, Australia. The assessment is based on solar access on the winter solstice (21 June) under a clear sky model.

DL-Light produces the full SEPP65 compliance report with results colour-coded in three categories: compliant (green), borderline (yellow), and non-compliant (blue). The report is formatted for direct submission to NSW planning authorities.

  • Winter solstice (21 June) solar access assessment
  • Clear sky model as required by SEPP65
  • Three compliance categories: compliant, borderline, non-compliant
  • Full synthesis report for planning submission
  • Applicable to NSW apartment buildings
SEPP65 setup and parameters

SEPP65 setup and parameters

SEPP65 result overview

SEPP65 result overview

Frequently asked questions

What is SEPP 65 assessment?

SEPP 65 is the Australian planning standard for daylighting and views in residential apartments. It requires assessment of daylight access to habitable rooms and visual privacy, ensuring adequate daylight and outdoor view quality.

How does DL-Light compute it?

DL-Light assesses SEPP 65 compliance by calculating daylight availability at windows and interior points using climate-based simulation. It identifies areas meeting the 2-hour winter sun access requirement and generates compliance reports.

What thresholds or standards apply?

SEPP 65 requires a minimum of 2 hours of direct sun to the principal private open space of residential apartments between 9am-3pm at mid-winter (21 June). Glazing must allow at least 40% of available daylight through windows.

Going further

Read the full DL-Light user-guide reference for SEPP65 Daylight Compliance: Windows guide · macOS guide.

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