LEED Homes Rating System Fundamentals
LEED v4 for Homes is a residential rating system: it certifies single-family houses and multifamily buildings up to three stories, while four-to-eight-story multifamily follows the Multifamily Midrise path; LEED v4.1 Residential merges both into one residential system. The exam tests how a home actually earns certification - prerequisites, point math, third-party verification - not commercial BD+C rules.
How the scorecard is built
110 points sit in nine categories: Integrative Process 2, Location and Transportation 15, Sustainable Sites 7, Water Efficiency 12, Energy and Atmosphere 38, Materials and Resources 10, Indoor Environmental Quality 16, Innovation 6, Regional Priority 4. Energy dominates, so energy performance usually decides the certification level.
Prerequisites versus credits
Prerequisites are pass/fail and worth zero points; a project that misses one cannot certify at any score. Thresholds are absolute points, not percentages: Certified 40, Silver 50, Gold 60, Platinum 80.
Who verifies the home
A LEED Green Rater, working through a Provider, performs a preliminary rating during design and a final inspection on site, with Provider quality assurance behind both. The design team cannot self-certify; HERS rater files, durability checklists, and photographs are the evidence trail.
Worked example
A 2,600 sq ft home scores IP 2, LT 9, SS 4, WE 8, EA 26, MR 6, EQ 10, IN 3, RP 2 = 70 points, which is Gold. If the same project skipped radon-resistant construction in a high-risk zone, the EQ prerequisite fails and those 70 points are irrelevant until the detail is corrected and re-inspected.
Traps that cost marks
- Treating thresholds as percentages (44 points is not Certified).
- Assuming Innovation is unlimited - it caps at 6, and some points need pilot or exemplary performance.
- Believing a high score offsets a missed prerequisite.
- Confusing the Homes scope with mid-rise or commercial construction rules.