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US Green Building Council Exam LEED-AP-BD+C Topic 6 Question 15 Discussion

Actual exam question for US Green Building Council's LEED-AP-BD+C exam
Question #: 15
Topic #: 6
[All LEED-AP-BD+C Questions]

A new five-story building with a 30,000 ft2 (2 800 m2) footprint is being designed on a previously disturbed100,000 ft2 (9 290 m2) site. The remaining on-grade surface will be 35,000 ft2 (3 250 m2) of asphalt parking, and 35,000 ft2 (3 250 m2) of native vegetated open space. To achieve a point for exemplary performance under Option 1 of Sustainable Sites Credit, Site Development - Protect or Restore Habitat, the design team will have to incorporate a native and/or adapted vegetated roof with a minimum area of

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Suggested Answer: C

According to the LEED v4 Reference Guide for Building Design and Construction, Option 1 of the Site Development - Protect or Restore Habitat credit requires restoring 25% of the site area (including the building footprint) with native or adapted vegetation1. To achieve exemplary performance, the project must double the credit requirements and restore 50% of the site area2. In this case, the site area is 100,000 ft2 (9 290 m2), so the project must restore 50,000 ft2 (4 645 m2) with vegetation. The project already has 35,000 ft2 (3 250 m2) of native vegetated open space, so it needs to add another 15,000 ft2 (1 395 m2) of vegetation. Since the on-grade surface is fully occupied by the building footprint and the asphalt parking, the only option is to incorporate a vegetated roof. Therefore, the design team will have to incorporate a native and/or adapted vegetated roof with a minimum area of 15,000 ft2 (1 395 m2). Reference: SS Credit Site Development - Protect or Restore Habitat, LEED v4 Reference Guide for Building Design and Construction13


by Mattie at Jun 14, 2025, 05:47 PM

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Wilda
18 days ago
Option B all the way! This is a no-brainer. Though I do wonder if the architect is planning to grow a small forest up there.
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Daron
3 days ago
It's great to see projects incorporating green elements like vegetated roofs for environmental benefits.
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Glory
4 days ago
I think the architect is aiming for a sustainable and eco-friendly design with that vegetated roof.
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Kirby
8 days ago
I agree, Option B seems like the best choice for this project.
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Francis
27 days ago
I was a bit confused at first, but after reading it carefully, I think Option B is the right answer. 15,000 ft2 sounds like the sweet spot here.
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Adrianna
10 days ago
I think so too, 15,000 ft2 does sound like the right fit for the design.
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Joni
14 days ago
I agree, Option B seems like the best choice for this scenario.
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Sonia
1 months ago
I agree, Option B is the way to go. Anything less than 15,000 ft2 wouldn't be enough to qualify for the exemplary performance point.
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Loreta
2 days ago
User 3: Agreed, Option B is the way to go for sure.
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Kris
4 days ago
User 2: Yeah, anything less than 15,000 ft2 wouldn't meet the requirements.
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Joaquin
9 days ago
User 1: I think Option B is the best choice.
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Eileen
1 months ago
I'm not sure about this one. I think the answer might be D) 35,000 ft2 (3 250 m2) to ensure we meet the requirements for the credit.
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Christene
1 months ago
I agree with Linn. The larger the vegetated roof area, the better the habitat protection and restoration. So, C) 25,000 ft2 (2 300 m2) makes sense.
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Willie
2 months ago
Option B seems like the correct answer. The building footprint is 30,000 ft2, and the remaining on-grade surface is 70,000 ft2, so a vegetated roof of 15,000 ft2 would meet the minimum area requirement.
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Lindsey
13 days ago
Great, that makes sense. Option B it is then.
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Delisa
24 days ago
So, a vegetated roof of 15,000 ft2 would meet the minimum requirement.
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Juan
26 days ago
Yes, I agree. A vegetated roof of 15,000 ft2 would meet the minimum area requirement.
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Gaston
28 days ago
Yes, I agree. The building footprint and remaining surface area add up to 70,000 ft2.
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Daren
1 months ago
I think Option B is the right choice.
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Caren
1 months ago
I think Option B is the correct answer.
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Linn
2 months ago
I think the answer is C) 25,000 ft2 (2 300 m2). We need to incorporate a large vegetated roof to achieve exemplary performance.
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