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Post your questions on this credit in the forum, and click on the credit language tab to review to the LEED requirements.
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To connect building occupants with the outdoors, reinforce circadian rhythms, and reduce the use of electrical lighting by introducing daylight into the space.
Requirements
At least 40% of the area of nonregularly occupied space should achieve at least 100 lux for 10% of the hours between 8am-6pm. Demonstrate compliance through computer simulations outlined in Option 1 of the Daylight credit, or with daylight measurements as outlined in Option 3 of the Daylight credit.
Submittals
General
Register for the pilot credit- Participate in the LEEDuser pilot credit forum
- Complete the feedback survey:
Credit Specific
- List of nonregularly occupied spaces and their annual summary values for sDA (Option 1), calculated illuminance values (Option 2), or measured illuminance values (Option 3)
- Geometric plots from simulations, and narrative or output file describing daylight simulation program, simulation inputs, and weather file (Options 1 and 2 only)
- Project drawing(s) with recorded daylight measurements and time that measurements were taken (Option 3 only)
- Calculations demonstrating percentage of compliant nonregularly occupied floor area
Questions:
- Did you also achieve the LEED v4 Daylight credit? How did you balance providing daylight in the regularly occupied spaces vs. daylight in the nonregularly occupied spaces?
- How many floors does the building have?
- What are the nonregularly occupied spaces in the project, how was daylight achieved in these spaces?
Changes:
What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.
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Frequently asked questions
See all forum discussions about this credit »Documentation toolkit
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This article is BuildingGreen Premium content
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To read the full article, subscribe now to BuildingGreen Premium
For full access, sign up now for LEEDuser Premium
LEEDuser tip sheets, written by our team of LEED experts, fill gaps in knowledge we’ve observed between the LEED Reference Guide, LEED Online, and LEED Interpretations. We update them regularly so that our members get the most relevant guidance for current issues on their projects.
( does not provide premium access to LEEDuser)
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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To connect building occupants with the outdoors, reinforce circadian rhythms, and reduce the use of electrical lighting by introducing daylight into the space.
Requirements
At least 40% of the area of nonregularly occupied space should achieve at least 100 lux for 10% of the hours between 8am-6pm. Demonstrate compliance through computer simulations outlined in Option 1 of the Daylight credit, or with daylight measurements as outlined in Option 3 of the Daylight credit.
Submittals
General
Register for the pilot credit- Participate in the LEEDuser pilot credit forum
- Complete the feedback survey:
Credit Specific
- List of nonregularly occupied spaces and their annual summary values for sDA (Option 1), calculated illuminance values (Option 2), or measured illuminance values (Option 3)
- Geometric plots from simulations, and narrative or output file describing daylight simulation program, simulation inputs, and weather file (Options 1 and 2 only)
- Project drawing(s) with recorded daylight measurements and time that measurements were taken (Option 3 only)
- Calculations demonstrating percentage of compliant nonregularly occupied floor area
Questions:
- Did you also achieve the LEED v4 Daylight credit? How did you balance providing daylight in the regularly occupied spaces vs. daylight in the nonregularly occupied spaces?
- How many floors does the building have?
- What are the nonregularly occupied spaces in the project, how was daylight achieved in these spaces?
